How to adjust PH in Coco?

I am trying to bring down the PH in my Bio-Bizz coco and It is not coming down??? I am using 50/50 coco and perlite.

My 1/4 strength nute solution is currently running to waste. The water is going in at 5.2 and coming out at 6.2-6.5. I have run 10 times the containers volume through and the ph won't come down.

Any ideas?

Thanks -J

How long have you been using the coco? Coco is a natural buffer, and you are still in a good range. If you are feeling uncomfortable with it still, you can mix/PH your nutes at 5.0 and your PH run off should go down.
Adieu

Reread your post, mix at 4.9 possibly, but IMO you are still in a safe PH zone especially if you water every day. Are you still using the F and E tables?
My coco grow
http://boards.cannabis.com/indoor-gr...coco-coir.html

Hey Bear!!! I am using the same tables. I ran tons of water at 4.8-5.2through the coco and it will not drop below 6.0. Correct me if I'm wrong but in at 5ph and out at 6ph = 7ph in the medium. I am wondering if the b-cuzz coco is somehow not allowing the ph to drop. The plants are showing all sorts of problems. Do you think a 10-15 minute saturation in low ph solution would work?

Coco is prone to calcium and Zink defs and if you are not using a coco specific nute than you may be seeing that and it may be causing a lock out rather than anything related to PH. Many coco growers water at PH 6.2/6.4, I water at PH 5.8/5.9 my self. I think that you should get a bottle of CalMag Plus and use it full strength in your res and then half strength the next res change throughout the grow except for the last 2 to 3 weeks and your problems may change.
How often are you flooding?? What kind of nutes are you using?? Bio Biz nutes are generally soil based because the biological bacteria's need to chilate Bad Spelling, in the soil creating the beneficial bacterial environment which makes that particular nute function so well. In an inert medium like coco you are not looking for the same play ground.
Try to dig up some pics on Cal/Zinc defs. Also, are you using coco slabs or loose coco in baskets??
Adieu

I am using Pure Blend Pro Grow. It is marketed as a soil/coco veg nute. I do have the cal-mag plus and have started using that but growth is stopped. I am just starting out in veg and honestly these clones have never really gotten up to speed.

I decided to try AN pirhana to introduce mycorrhizae into the coco. I also added some Voodoo Juice and Carboload. The result was a fairly rapid rise in PH. I didn't catch it for a few waterings and the solution I watered with continued to become more alkaline. When I checked the runoff PH it was at 6.8 and I have been fighting to get it to come down. I think I am still feeling the effects of the additives settling out in the Coco. I did some research(After the fact..Duh!) at the AN forum and they recommend letting their fungus and microbe products to settle out before trying to do a final PH adjustment.

Now I am in the situation where I think I know what is happening but I am wondering if the coco is somehow buffering the ph and not letting it come down.

I also read that I am probably watering too much. I am top feeding by hand right now just until they go into 2 gallon pots then I will be top feeding with a pump/timer. There are quite a few coco guys on the an site and I at least got some info from guys that have been using coco for a few years.

I am keeping fingers crossed they pick up again.

Thanks Bear

Hey CJ, I won't BS you, I think that if your clones arn't moving along and you may be possibly over watering then you should get some better advice and coco growers will IMO be the best way to go, http://www.icmag.com/ic/forumdisplay.php?f=65577 is a new coco growing forom that I think will put you on the right path. I would hate for you to lose out on another round just because I think I have all of the answers and honestly since not to many people around here grow in coco I think you should go to some experienced coco growers.
Good Luck and I will check on you over there if you get plugged in. Let them know the brand of coco, drip schedule, addatives and any other related info.
Just don't forget to come back here.
Adieu

Thanks Bear...Good news(finally)

I reduced the watering to once every 2 days and said screw trying to chase the ph. I just began giving it a constant 5.8 and ignored the outflow. I have the cal mag at 5ml/gal and the ppm at 650. The plants are greening up and growing again. I found this document...(It is looooong so be prepared :0)

I Love you man, Thanks for your help PaPa Bear!


Hoogbrugstraat 32 6221 CR Maastricht Tel: +31 (0)43-3219727 Fax: +31 (0)43-3219702
Galjoenweg 81 6222 NT Maastricht Tel: +31 (0)43-3627990 Fax: +31 (0)43-3627651
Guide for growing on coco
Growing cannabis is a hobby that more and more people pursue. Everybody can have great results if you adopt a professional attitude as grower. A good crop depends on the commitment and cleverness of the caretaker.
This guide focuses on the growth of skunk and indica kinds, varying from 7 to 10 weeks flowering phase.
There are various methods to grow professionally, but we have found that this is the simplest method to yield results over the gram/watt. We know from experience that if the beginner is serious and meticulous and visits the shop once every two weeks for half an hour to catch up the first harvest will yield premium quality and premium production. Failed harvests due to mistakes in the growing method are rare, but are caused by, for example, unreliable equipment, low-quality products, nonchalance, and by insect plagues.
There are two differences:
1) Coco in pots
2) Coco in slabs
The advantage of growing in pots is that you can move the plants during the harvest. Since one plant grows faster than the next it is easy to sort them according to length and order them in such a way that they catch as much light as possible. Coco slabs only offer advantages such as less work (primarily in larger areas) and less waste, and even higher yields if you use a water system. This guide only discusses the first method. For growing on slabs, go to Growside Maastricht V.O.F.. We only explain the method of growing and not the layout of the room. Visit the shop for advice on how to do this, because the layout requires special attention, for example isolation, ventilation and power supply.
Coco in pots
In order to reduce the harvest time as much as possible to prevent the development of problems we use a 4-litre pot of lxbxh is 15x15x20cm. Citral, Peacemaker, White Widow, Snowball, Santa Maria or other white weeds barely need to be given growing time (18 hours light or more) if the climate is really damp the first two weeks. A K2 or a Top-44 for example, are slow growers that can take at least five days of growth.
Since the plants do not or barely get the time to grow, they will yield a maximum of 25 grams on average. That means that at least 24 plants must be placed under every 600w lamp in order to yield 600 grams per 600 watt HPS lamp. Because the artificial light is less powerful than the sun the intensity of light greatly decreases if the distance between lamp and plant becomes a bit bigger. For that reason a short plant usually has long full flowers from top to bottom and a long plant may look deserted of flowers especially at the bottom. A larger plant (larger than 75cm) does not yield more than a smaller one and is unmanageable.
Ordering and comparing pots
A big advantage of growing with pots is that you can move the plants and can look per plant if it needs water or not. Especially the first three weeks there can be large differences between the plants, which are caused as follows:
SNS bank nr: 93.66.05.456 Website: Growside Maastricht V.O.F. E-mail: [email protected] K.v.K. Zuid-Limburg nr. 14635027
Hoogbrugstraat 32 6221 CR Maastricht Tel: +31 (0)43-3219727 Fax: +31 (0)43-3219702
Galjoenweg 81 6222 NT Maastricht Tel: +31 (0)43-3627990 Fax: +31 (0)43-3627651
The cuttings you start with are different. It is possible that one has grown 15 cm after 5 days and has already used a lot of water while another is still as small and damp as in the beginning. If you water all plants while some of them are still wet you drown the plants that were already small while the cuttings that are big get watered at the correct moment. The large plants will grow even harder and the small ones even slower and the differences will keep getting bigger and bigger. For that reason you should only water plants that are dry.
The more often you select, the more evenly your plants grow. When your harvest progresses you often see that the plants become more yellow in the centre than at the side, because the plants in the centre receive more light energy and process the food more quickly and therefore use more food. If you put a yellow plant on the outside you give it some time to take in food and become greener again. This means that a plant that is green (a plant with much unprocessed food) processes more food under the light than a plant that is already yellow because it cannot supply the food quickly enough.
Moving lamps or moving the lamps somewhat is always better.
Humidity
One of the most underestimated factors in indoor growing is the humidity.
It is important for the further course of the entire harvest especially the first three weeks.
A cutting is a sprig of a plant with a few leaves, which is cut from a large plant, the mother plant. This mother plant is selected on quality, gender, and strength and each cutting from this plant has exactly the same characteristics, the genetic factors. Since this cutting can vaporize water via the leaves, but cannot absorb water (there are no leaves) it must be protected against dehydration. This is where humidity comes into play. By increasing the humidity the water will vaporize more slowly and the plant will loose less water than in dry air. You give the plant more time to grow roots this way. With the help of the humidity you can actually regulate the rate of water evaporation in the plant. Even if roots are already there it may be that a young or sick plant cannot keep pace with the evaporation, for example if the amount of light or warmth is increased. You can recognise it by more yellow leaves, dried out edges of leaves, a stagnating growth and a decreasing humidity.
Most of the time when you turn on the light the room will get too dry quickly.
Since cuttings will usually take root under strip lights they are not used to really strong light.
Initially hang the lamp(s) as high as possible, start with a few lamps and add more lamps in the course of the first two weeks. Much light means much warmth. Much warmth means much extraction to lead away the warmth and all humid air is transported outside. Everyone will see the similarity between a blow-drier and the warmth of the lamps in combination with the extraction. The more lamps, the warmer it gets, the stronger the extraction so the lower the humidity, or the dryer the air. In order to maintain a high level of humidity you must not use too much light initially so that the extraction can be kept low. You can furthermore place water reservoirs, spray water, hang wet laundry in your growing room or, even better, use a humidifier. Be careful that the humidity is not more than 95% with reference to the electric equipment. When the plants get bigger they will automatically use more water and give off more moisture to the air and eventually the humidity will stay sufficiently high. When the humidity gets too high you can turn on more lamps and/or increase ventilation.
SNS bank nr: 93.66.05.456 Website: Growside Maastricht V.O.F. E-mail: [email protected] K.v.K. Zuid-Limburg nr. 14635027
Hoogbrugstraat 32 6221 CR Maastricht Tel: +31 (0)43-3219727 Fax: +31 (0)43-3219702
Galjoenweg 81 6222 NT Maastricht Tel: +31 (0)43-3627990 Fax: +31 (0)43-3627651
The following values are advisable:
week 1 80 to 90%
week 2 70 to 80%
week 3 65 to 70%
week 4 through 8 60 to 65%
week 9 around the 55%
Nowadays there are various convenient climate controllers available that simplify the controlling of your climate. Let someone inform you about the differences.
Bugs
When you grow you will be visited by uninvited insects now and again. The cleaner you work, the better, but it still does not guarantee anything. There will be no flowers the first three weeks of the harvest. During this period you can use insecticide, which you wash off before flower formation, without problems. I prefer insecticides that degrade themselves within a few weeks and are not poisonous after that period. Let someone inform you about this because there are also dangerous products on the market. Always ask about a product that is suitable for vegetables, fruit and other consumer crops. A safety term is usually also indicated. I furthermore advise to work with two different insecticides, one general insecticide against louse, thrips and other insects and a special insecticide against red spider mites (web). If you spray once every three days with one of the two insecticides your crop will be clean before the real bloom. Primarily spray under the leaves.
Once you have an actual flower (and not the first hairs) you stop spraying and wash the leaves a few times with a lot of clean water. You can also release natural enemies such as predatory mites (orius) and soil-predatory mites (hypoaspis miles). The first lives on all harmful insects on the leaves, and the other on all harmful insects in the soil and for that reason they are particular suited to use preventively. Only tenacious red spider mites might occur at the end of the harvest, against which you should use predatory mites. It all seems a lot of work but it might save you a lot of problems, and fighting a real plague is often more work and might cost more with reference to yield and quality.
Soil humidity
Watering with coco is different than with soil. If you grow on soil you cannot give the plant too much water because the plant will drown otherwise. Much water in the soil displaces all oxygen, which is rare in the ground in any case. Pearlite is added to the soil to reduce this problem. Coco on the other hand is so light that there will always be sufficient oxygen left and the plant cannot drown. This means in general that you can give the plant so much water that it drains from under the pot each time. You can let the pot become dryer the first week only to stimulate root development. You can also water the plants on coco the soil-growing way (without drainage), but coco is actually a hydrological medium and drainage yields better and more constant results (750grams/600watt/9weeks/1.2m2 has been realised).
You furthermore compare the EC-values (see following chapter). If they are constant, flush out a little and drain 20% nutrient solution. If you measure a higher EC-value you can drain more (30%) and flush out more often. When the EC gets lower, you can give more nutrients.
SNS bank nr: 93.66.05.456 Website: Growside Maastricht V.O.F. E-mail: [email protected] K.v.K. Zuid-Limburg nr. 14635027
Hoogbrugstraat 32 6221 CR Maastricht Tel: +31 (0)43-3219727 Fax: +31 (0)43-3219702
Galjoenweg 81 6222 NT Maastricht Tel: +31 (0)43-3627990 Fax: +31 (0)43-3627651
Unfortunately I havenâ??t seen a professional soil humidity meter yet. The hydrological growing on coco always enables you to know if you have watered the plant sufficiently. From the 8th day you must find on average 25% of the water given each day in the waste water reservoir where your drain water flows back to. You can furthermore decide at all times to give more water in order to regulate your pH- and EC- values.
E.C.
E.C. means Electric Conductivity, and is measured in ųS/cm.
The dissolved salts in water determine the conductivity of the water. If no salts or minerals are dissolved in the water the conductivity is zero, just like rubber. The more salts, the better the conductivity. Tap water normally contains so many dissolved salts that it conducts electricity dangerously well. Since most salts are also nutrient the EC.-value is also a standard for the nutritional value of the water or the soil.
The EC.-value of the tap water in the Netherlands lies approximately between the 0.1 and the 0.7 ųS/cm. The EC in this area lies around 0.5. When we talk about an EC-value it is always a combination of the EC-value of the water and of the nutrient. The tap water has an EC-value of 0.5. In case of an EC of 1.7 this is 0.5 of the water and 1.2 enriched with nutrient solution. In your case you must complement the EC of your tap water with 1.2 EC nutrient solution.
When the plants are young you should work with an EC of 1.2, up to 1.7 in approximately three weeks.
If everything goes as it should you determine by looking at the colour of the leaves if you should give more or less nutrient. If the leaves are dark green this means that the plant has more than enough nutrients for now. You can give fewer nutrients. If the leaves turn more yellow, you can give the plant more nutrient. Since there are also other factors that determine the colour of the leaves you should measure the soil or the drainage water.
Pay attention when measuring the pH and EC if you havenâ??t had constant drainage. The values measured may be unreliable. You should flush a few days with extra drainage before you start measuring (see Drainage).
A normal EC-value near the roots for an adult plant lies around 1.6 and 2.4 ųS/cm.
Try to give a nutrient concentration as low as possible, but as much nutrient solution as possible. Work with Citral and white weeds with EC-values between 1.6 and 1.8 if you have 20 to 30 % drainage water left.
When you drain less, you must generally give more nutrients. With K2 or skunk kinds you can often give more nutrients in any case.
With constant drainage you can use the drainage water to determine after the 3rd/4th week how much nutrient you must give. We work with an EC between 1.6 and 1.8mS/cm.
Since the plant absorbs a part of the nutrients the drain water (waste water) contains fewer nutrients than the nutrient solution. If you give 1.8, you can expect back between 1.1 and 1.6. If you have given, for example, 1.8 the previous weeks and measured 1.5 in your drain water you can increase the nutrient solution 0.2 points when the EC-value of the drain water drops to 1.3, for example. This is a sign that the plant develops well.
If the condition of the plant deteriorates due to, for example, high temperatures the plant will also absorb fewer nutrients and you will measure a higher EC of the drain water. This is a bad sign, which is often noticeable before other symptoms such as discoloured or curly leaves.
SNS bank nr: 93.66.05.456 Website: Growside Maastricht V.O.F. E-mail: [email protected] K.v.K. Zuid-Limburg nr. 14635027
Hoogbrugstraat 32 6221 CR Maastricht Tel: +31 (0)43-3219727 Fax: +31 (0)43-3219702
Galjoenweg 81 6222 NT Maastricht Tel: +31 (0)43-3627990 Fax: +31 (0)43-3627651
You must lower the EC of your nutrient solution, and also look for the cause (bad climate, bad pH or bugs).
On average you try to get an EC-value of 1.7 near the roots. The EC-value near the roots lies around the EC of your nutrient solution and the drain water. All in all you can use the following formula to determine the EC of your new nutrient solution:
EC of the new nutrient solution = 2 x [1.7 â?? (½ EC drain water)]. Here the EC drain water is the EC of the old drain water left behind after previous watering(s).
Always watch the plant closely and never react rigorously. You should adjust your flush water somewhat and use it to flush longer instead of flushing shorter with more extreme values.
If you measure an EC-value of the drain water that is higher than you have indicated on the nutrient vessels you had too little drain or havenâ??t measured and adjusted often enough. You can flush your coco on this moment until the values are ok again (see flushing). If your plant stops growing due to stress it hardly uses nutrients. If you continue giving nutrients without measuring almost all the nutrients you give will remain in the coco and you will have an EC-value near the roots that will quickly get too high if you donâ??t drain.
If the leaves are yellow, do not increase your EC-values rigorously. Give a bit more nutrients, but also water more often or give more water and during a longer period. If you measure regularly you will never find strongly deviating drain values, and you will only have to adjust minimally. Try to give a nutrient concentration that is as low as possible, but give as much nutrient solution as possible.
EC-meters cost approximately Euro 40,-.
PH
P.H. (Potentia Hydrogenica) is acidity. In plant breeding the pH determines the nutrient absorption capacity. A pH that is too low (acid) causes certain elements to be absorbed too quickly, which may cause poisoning. If you have a pH that is too high (basic) certain elements will not be absorbed or with difficulty. A shortage is usually not caused by using too little nutrients, but because the nutrients cannot be absorbed. You can have good nutrient absorption on coco with a pH between 5.2 and 6.2 with a pH of 5.7 as ideal value.
Plants adapt to circumstances. For that reason constant values are always better. So keep the pH constant!
The acids we use are nitric acid and phosphoric acid. Nitric acid or pH-grow (pH-min-grow) is used in the growing phase and in the first week of the bloom, phosphoric acid or pH-bloom (pH-min-bloom) is used after that. If the pH of your water with nutrients is lower than 5.7 you need pH-plus. This is not acid, but a base, usually caustic potash.
Coco has, just like soil, the capacity to steer the pH, correct it and stabilise it. This is caused by minerals in the coco that correct the pH. This means you can have at least one harvest without regulating the pH of your nutrient solution. When you regulate, up to 5 harvests are possible.
EC and pH are closely linked. If you add more nutrient to a bucket of water the pH usually drops and if you add acid to the water the EC rises (a little). If you continuously give a bit too much nutrient or if the plants absorb less nutrient the EC-value in the coco builds up. The pH will also become more acidic (=lower).
If you grow hydrological on coco it is quite easy to maintain the correct pH-value by means of the following formula:
SNS bank nr: 93.66.05.456 Website: Growside Maastricht V.O.F. E-mail: [email protected] K.v.K. Zuid-Limburg nr. 14635027
Hoogbrugstraat 32 6221 CR Maastricht Tel: +31 (0)43-3219727 Fax: +31 (0)43-3219702
Galjoenweg 81 6222 NT Maastricht Tel: +31 (0)43-3627990 Fax: +31 (0)43-3627651
PH of the new nutrient solution = 2 x [5.8 â?? (½ pH drain water)]. Here the pH drain water is the pH of the old drain water left behind after previous watering(s). Test your soil every three weeks or let a growshop check it. You can buy a pH-meter from Euro 40.
Good drainage prevents build up of acids and salts.
Drainage
Drainage is the amount of nutrient solution that leaks from under a pot or slab after fertilizing. The purpose of drainage is that the EC-and pH-values can be controlled better and unnecessary salts are drained.
If you give a plant nutrient you try to give it exactly enough. Since not all plants use similar amounts of nutrient and plants also secrete salts, there may be pots in which salts are building up. This surplus of nutrient makes the soil brackish and changes the pH. By means of drainage you flush the soil every time you give nutrient, which prevents the soil becoming brackish.
If you measure the drainage water or the coco you can see if the soil is polluted. If the EC is higher than you have indicated you must flush. You can also bring your water or soil sample to the growshop. We can teach you there how you can carry out a proper soil analysis and how you can determine from the values measured how to proceed. If the values deviate strongly you can also, for example, flush half a vessel of nutrient solution through the pots and measure again. If you still donâ??t have proper values you can flush again a few days later. You can also slightly increase the drainage. Try not to let the values fluctuate too much on 1 day, but flush with intervals of a few days until the values are correct again. Too many fluctuations in a short while can cause stress. Only measure drain water if you have regularly drained the past few days, otherwise you measure unreliable values.
Step by Step
Day 1
-Heat up the room to about 24 °C.
-Regulate the humidity between 80 and 90%.
-Turn on as few lights as possible (for example 1). Hang the lamp(s) as high as possible.
-Minimise the extraction or turn it off (see chapter humidity).
-Fill the pots completely, lightly press the soil.
-Give half a litre of water per plant according to the â??planting recipeâ?�.
-Give all plants, within 10 minutes after placing, water because the dry coco otherwise sucks the cutting plug dry.
-Spray water, so that the plants and the room are humid, but do not let the coco become wetter with spray water because the pH of that water has not been regulated.
- The blooming phase starts between now and 7 days depending on the kinds.
Week 1
-Keep the humidity over 80 % the first week.
-From the 2nd day preventively spray insecticide, every three days up to flower formation and primarily under the leaves.
SNS bank nr: 93.66.05.456 Website: Growside Maastricht V.O.F. E-mail: [email protected] K.v.K. Zuid-Limburg nr. 14635027
Hoogbrugstraat 32 6221 CR Maastricht Tel: +31 (0)43-3219727 Fax: +31 (0)43-3219702
Galjoenweg 81 6222 NT Maastricht Tel: +31 (0)43-3627990 Fax: +31 (0)43-3627651
-When the plants have grown a few centimetres, you can select the plants on size. Place the large plants on the outside and the small ones in the centre.
-The more often you do this the more equal the plants develop.
-After about a week (between 5 and 10 days) the plants need water.
-Use the â??nutrient solution recipe 1â?�. Only water the plants that are dry and let the others become dry first (see selecting and ordering plants).
-You can turn on about 2/3 of the lamps usually after a week.
This depends on:
1) the regulation of the humidity and
2) the development of the plants in the first week.
Often these factors are connected.
If the plants, for example, during planting or due to low humidity have sustained a shock it may be that they cannot stand so much light yet. In that case wait with increasing the amount of light, all the more since this also complicates a high humidity.
Week 2
-Keep the humidity between 70 and 80%.
-Keep spraying against insects.
-Order and select, in this phase only water plants that are dry, but generally use a more humid pot for plants that do well. Water the plants with nutrient solution-recipe 1.
-Slowly turn on and increase the air extractor (15 minutes/hour).
-Turn on the last lamps.
-Increase the extraction.
Week 3
-Keep the humidity between 65 and 70%.
-Gradually lower the lamps, 600wat min. 50cm and 400wat min. 40 cm.
-Give water according to nutrient solution-recipe 2.
-Spray until the end of the week.
-Increase the extraction.
- Spray the plants at the end of the week for the last time.
This depends on the kind and how fast the bloom starts.
- At the end of week 3 the soil humidity may rise until drainage starts.
If the plants are relatively big you can drain sooner, and the other way round,
because if the root system has not been developed enough yet a drier pot is better since the plant sends out the roots for water.
Build up the drainage in the coming 2 weeks to at least 20%.
Also mind the drainage water; you might for example discover harmful soil insects you donâ??t see usually. Of course you can also measure the water.
The more the values (pH en EC) deviate from the nutrient solution, the more you must drain or flush. In case of large differences visit the growshop.
-Order the natural enemies that you want to use preventively from the growshop.
Assassin bugs and soil predatory mites are effective against practically all plagues.
Only tenacious red spider mites may sometimes occur. In that case I use predatory mites, especially against the red spider mite.
SNS bank nr: 93.66.05.456 Website: Growside Maastricht V.O.F. E-mail: [email protected] K.v.K. Zuid-Limburg nr. 14635027
Hoogbrugstraat 32 6221 CR Maastricht Tel: +31 (0)43-3219727 Fax: +31 (0)43-3219702
Galjoenweg 81 6222 NT Maastricht Tel: +31 (0)43-3627990 Fax: +31 (0)43-3627651
Week 4
-Reduce the humidity from 65% to 60% in the course of 4 weeks.
-Do not spray.
-Collect insects ordered last week and use them
-Maximum extraction.
-Lamps at the minimum distance.
-Water plants according to nutrient solution-recipe 3.
- Look for harmful insects.
Week 5
-Humidity approximately 60%
-Water according to nutrient solution-recipe 3.
- Look for harmful insects.
-Clear away all dead leaves that have fallen (and other mess).
-Check the colour of the leaves and test the soil. When in doubt go to the growshop.
Week 6
â?? Humidity approximately 60%.
- Water plants according to nutrient solution-recipe 3
- Look for harmful insects.
Week 7
- Humidity approximately 60%.
- Water plants according to nutrient solution-recipe 3.
- Look for harmful insects.
- Clear away all dead leaves that have fallen (and other mess).
Week 8
- Humidity approximately 60%.
- Water plants according to nutrient solution-recipe 4.
-Test the soil. If it contains a high concentration of salts the soil cannot be used for the next crop anymore, unless you flush out the salts. In this case flush with cannazym (until EC < 1.6). This loosens the blocked nutrient and also breaks down dead roots. Correct the pH with your flush water (if necessary).
- Look for harmful insects.
Week 9
â??Keep the humidity low to prevent fungus (=55%).
- Water plants according to nutrient solution-recipe 4.
-Check the biggest buds for fungus. Carefully bend a large bud open until you see the branch. Look for white or brown fungal hairs, brown and grey spots and slimy places. Usually a mouldy top also has parched, yellow or brown leaves. Look for fungus near an ugly leaf in the large tops. When in doubt show an affected top at the growshop. If you find fungus, itâ??s best to harvest at once since it might spread quickly.
-If 2/3rd of the weed hairs are brown you can harvest.
SNS bank nr: 93.66.05.456 Website: Growside Maastricht V.O.F. E-mail: [email protected] K.v.K. Zuid-Limburg nr. 14635027
Hoogbrugstraat 32 6221 CR Maastricht Tel: +31 (0)43-3219727 Fax: +31 (0)43-3219702
Galjoenweg 81 6222 NT Maastricht Tel: +31 (0)43-3627990 Fax: +31 (0)43-3627651
Watering the plants
â?¢ Water is the source of life of a plant. One must be very precise here too.
â?¢ A few pointers:
� Temperature of the water is equal to the temperature of the soil (approximately 23° C).
â?¢ If you put out the water a day sooner, harmful chemicals such as chlorine vaporize.
â?¢ If you intend to regulate the ph of the nutrient solution you must do this the entire harvest, every time you give nutrient or donâ??t do it the entire harvest. Keep the pH constant.
â?¢ Close the tap after you have finished!!!!
â?¢ Never mix A and B without water.
Planting recipe
â?¢ 1 ml/l Canna coco A and 1 ml/l Canna coco B
â?¢ 1 ml/l Bâ??cuzz Root stimulator
â?¢ 1 ml/l Bâ??cuzz Booster Indica
â?¢ CO2-tabs 1 pill/100 litres
â?¢ pH=5.7
Feed water recipe 1
â?¢ 2 ml/l Canna coco A and Canna coco B
â?¢ 1 ml/l Bâ??cuzz Root stimulator
â?¢ 1 ml/l Bâ??cuzz coco Booster Indica
â?¢ CO2-tabs 1 pill/100 litres
â?¢ PH=5.7
Nutrient solution recipe 2
â?¢ Dependent on the colour of the leaves and the values in the soil between 1 and 4 ml/l Canna coco A and B
â?¢ 1 ml/l Bâ??cuzz coco Booster Indica
â?¢ 1 ml/l Bâ??cuzz coco Bloom stimulator
â?¢ CO2-tabs 1 pill/100 litres
â?¢ PH=5.7
Nutrient solution recipe 3
â?¢ Dependent on the colour of the leaves and the values in the soil between 1 and 4 ml/l Canna coco A and B
â?¢ 1 ml/l Bâ??cuzz coco Bloom stimulator
â?¢ CO2-taps 1 pill/100 litres.
SNS bank nr: 93.66.05.456 Website: Growside Maastricht V.O.F. E-mail: [email protected] K.v.K. Zuid-Limburg nr. 14635027
Hoogbrugstraat 32 6221 CR Maastricht Tel: +31 (0)43-3219727 Fax: +31 (0)43-3219702
Galjoenweg 81 6222 NT Maastricht Tel: +31 (0)43-3627990 Fax: +31 (0)43-3627651
â?¢ PH= average 5.7 unless you have to regulate from your measured drain soils.
Nutrient solution recipe 4
â?¢ Test the soil. If the EC is high and the pH is low the soil cannot be used for the next harvest unless you flush away the accumulated salts and acids. Flush out the soil with Cannazym (see flush water recipe).
If the values are good (EC<1.7 and ph=5.5-5.9), you donâ??t have to flush, but should use Cannazym to break down dead roots.
Try to arrange that the coco is empty at the end of the harvest without there being a nutrient shortage. You usually reduce the amount of nutrient in the last week until you water the plants the last time(s) without it.
â?¢ Cannazym 2/5 ml/litre
â?¢ 1 ml/l Bâ??cuzz coco Bloom stimulator
â?¢ CO2-tabs 1 pill/100 litres
â?¢ PH=average 5.7 unless you have to regulate from your measured drain soils.
Flush water recipe
â?¢ 1 ml/l Canna coco A and B
â?¢ 2.5 ml/l Cannazym
â?¢ pH= average 5.7 unless you have to regulate from your measured drain soils.
Spray water recipe
â?¢ Temperature of the water is equal to the temperature of the air
â?¢ no PH-regulation
â?¢ Add insecticide or anti-web agent according to label on product.
Explanation of products used
1) Canna coco A + B nutrient
This is a ready-to-use 2-component nutrient for grow and bloom on coco. The nutrient regulates the pH a little so that it is unnecessary to regulate the pH yourself.
Dose: between 1 and 4 ml per litre.
EC- values between 1.2 and 2.4 cm/mS. dependent on the tap water and period.
2) Bâ??cuzz Coco Booster Indica
This is a grow stimulator used in the first 4 weeks.
It contains vitamins, amino acids, and other substances that, among other things, improve the metabolism and nutrient absorption via the roots.
Dose: 1ml/l during the first 4 weeks.
SNS bank nr: 93.66.05.456 Website: Growside Maastricht V.O.F. E-mail: [email protected] K.v.K. Zuid-Limburg nr. 14635027
Hoogbrugstraat 32 6221 CR Maastricht Tel: +31 (0)43-3219727 Fax: +31 (0)43-3219702
Galjoenweg 81 6222 NT Maastricht Tel: +31 (0)43-3627990 Fax: +31 (0)43-3627651
3) Bâ??cuzz Root stimulator
This stimulator stimulates root growth and is given the first 10 days.
Dose: 1ml/l the first 10 days.
4) Bâ??cuzz Coco Bloom stimulator
This bloom stimulator simplifies the production of bloom hormones and causes a quicker bloom. A plant that grows fast can remain small because it stops growing sooner. You usually use the bloom stimulator when you stop using the root stimulator.
Dose: 1ml/l from day 12.
5) pH - grow
This is an acid (nitric acid) with a base of nitrogen. Since nitrogen is used a lot during growth it is the best acid to regulate the ph during growth.
Dose: by means of pH-meter (pH between 5.2 and 6.2).
6) pH â??bloom
This acid has a base of phosphor (phosphoric acid). Since this is an important nutritious element during bloom it can be used to regulate the pH during bloom.
Dose: by means of pH-meter (pH between 5.2 and 6.2).
7) Co2-tabs
This is a pill that gives additional CO2 to your nutrient solution. Each organic molecule contains a carbon molecule (C) which the plant absorbs from the CO2.
Dose: 1 pill per 100 litres of water.
8) Masai Bayer anti-web for vegetables/fruit
Insecticide purely against web (red spider mites). Especially spray under the leaves
Dose: according to label
9) Buzz off
Biological insecticide against plant louse, thrips and other insects.
Only use before flower formation.
Dose: 1ml/litre preventive, up to 3 ml/litre maximum
10) Cannazym
This is a product to loosen the blocked nutrient in the coco with the intention to flush it out. It also accelerates the break down of organic remains (dead roots) in the soil.
Dose: 2.5ml/litre
11) Super thrive
This product with a base of â??growth hormone production stimulatingâ?� ingredients can be given during the first 4 weeks to plants that develop slowly and stay behind.
Dose: daily 10 drops in 10 litres of water or 1/4ml / litre once only.
SNS bank nr: 93.66.05.456 Website: Growside Maastricht V.O.F. E-mail: [email protected] K.v.K. Zuid-Limburg nr. 14635027
Hoogbrugstraat 32 6221 CR Maastricht Tel: +31 (0)43-3219727 Fax: +31 (0)43-3219702
Galjoenweg 81 6222 NT Maastricht Tel: +31 (0)43-3627990 Fax: +31 (0)43-3627651
Cutting and drying
During the last days you must try and regulate the soil humidity in such a way that the soil is dry when you start cutting. If a lot of cutting is not a problem and if you want to have optimal smell and taste you now only need to cut the plants below the stem, and hang them upside down in the dark with a temperature of 18-20°C and some ventilation (do not aim at plants). Regularly check the flowers for dryness and fungus. Each bud with fungus must be removed from the room quickly and carefully. When the stems are dry 10 to 20 days later you cut the leaves of the tops and afterwards the tops from the stems. The buds must feel dry, but fatty now. Collect the leaves if you want to make skuff later on. The flowers are now ready to be used or to be packed.
In practise few people seem to be working this way, often the end product is dried within 10 days and sold. Due to ignorance during drying you may loose taste and smell, but if itâ??s dried the correct way this weed will also smell and taste great. Often the weed is dried and packed after 8 days and ripens further in the bag, which causes chlorophyll (leaf green) to break down in sugars, and the weed will taste optimally only after opening the bag or preserving jar a week later. Especially the big growers cut the weed immediately after harvest nowadays, and not after drying. The advantages are: less work, faster drying, less risk, and the possibility to use electric cutters. These are economical advantages as you can see, which are often more important to the bigger growers than optimum quality. Here too it is optimal to have dry soil at harvesting day. First strip the large leaves. These are the leaves without crystals and a long stem. Put the main bud in your hand and pull the large leaves downwards. This way they break off along the stem without leaving a stalk. You can throw away the leaves. The small leaves that are left are covered by crystals which you can use to make skuff (Dutch hash) later on.
You subsequently cut the plant near the stem and cut the little hash-rich leaves with small scissors (or electric cutter). Carefully collect these leaves and dry them in a dark and dust free room for three weeks with a humidity of <50%. Hang the cut plant upside down in the dark at a temperature of 18-20°C and a humidity of 55-60%.
Let the plants dry for 3 to 4 days, but do not let them become â??crisp dryâ?�. Cut the flowers from the stems and place them on drying racks. Let the flowers become â??crisp dryâ?� at the same conditions as before. Do not forget to turn the flowers now and again to prevent fungus. If you think the weed is almost ready you put the flowers in a bag or pot and check them every 12 hours. The remaining moisture spreads out equally through the weed and it may feel moister than when you put it in. In that case remove the weed from the jar or bag and dry it some more. You can repeat this process several times. Preferably put too moist weed in the bag too soon than putting too dry weed in the bag too late, because you canâ??t do anything then. You cannot make weed that is too dry moist again. If the inner stalk of a large bud is dry, and the weed did not feel moister after 24 hours in the bag the batch is usually ready to be packed. Try to prevent the flowers from becoming too dry because that affects the quality and the yield. Since the end product is a consumer product hygiene is not a luxury.
SNS bank nr: 93.66.05.456 Website: Growside Maastricht V.O.F. E-mail: [email protected] K.v.K. Zuid-Limburg nr. 14635027
Hoogbrugstraat 32 6221 CR Maastricht Tel: +31 (0)43-3219727 Fax: +31 (0)43-3219702
Galjoenweg 81 6222 NT Maastricht Tel: +31 (0)43-3627990 Fax: +31 (0)43-3627651
Making Skuff
The leaves you have dried for 3 weeks still contain many crystals which you can use to make top quality hash. You need a good sieve, or even better a shitshaker, skuffbuzzer or pollinator.
These are ready-to-use hash makers you can buy in the shop. You can easily and accurately separate the leaves from the crystals by sieving. Each machine shakes the leaves in a different way. When you buy a hash maker the shop employee can tell you how the machine works. For all three applies that the longer you sieve the leaves the more hash you have, but the poorer the quality (more leaves fall through the sieve).
In the end you have the sieved crystals that still have to be pressed. Sometimes the crystals need to be warmed during pressing. You can press in many ways, by hand, between a door or with a jack. In order to learn this it is best to make small batches, that way you can see differences between, for example, long and short sieving, hard and soft pressing or warm and cold pressing for yourself. Make bags of cellophane and tape, put the pollen in and press firmly. Tape the bag securely. Press the first bag without using warmth, the bigger the bag and the poorer the quality, the more pressure you need. You can press small plates of a few grams between a door. Larger plates must be pressed with a press, jack or car. The growshop sells special pressers with moulds.
If the cold pressed plate is whole after pressing and does not fall apart the quality is usually good. If the plate has a dark colour from the oils in the pollen you usually have top quality. If the plate falls apart or feels sandy you should use warmth and more pressure. Wrap the plate in a wet newspaper and bake it in an old frying pan (without butter). If the paper begins to smoke the plate is warm enough to be pressed. You will now get a more solid plate. If the powder still doesnâ??t stick the pollen is dehydrated or there is too much leaf powder mixed through the pollen (green, sieved too long) or your leaf material did not have the proper quality.
To conclude
There are many other good growing methods with even better results, but if you want to use this method please follow these instructions as precisely as possible. Different methods require different ways of thinking and to prevent misunderstandings you must follow the advice of one teacher only. You only need to follow these instructions precisely and thatâ??s all. If you still have questions, mail to [email protected] or got to Growside Maastricht V.O.F. . Good luck
©Growside Maastricht V.O.F. , 2005
SNS bank nr: 93.66.05.456 Website: Growside Maastricht V.O.F. E-mail: [email protected] K.v.K. Zuid-Limburg nr. 14635027

hi guys, it's been awhile, so i thought i'd drop in to say hello...