Need help with ph

[Kalidank1]

I messed up my plant has some leaves turning yellowish brown in spots and some are curling up some lower leaves have died completely and I barely started flowering a week in I checked the Ph and in my soil it is at 5.8 so my question is what I do to bring it up to at least 6,7 or 6.8 any help is appreciated

[mattj12pint2]

buy some ph up at your local hydro store. mix your nutes with your water then check your ph, nutes can cause your ph to drop. add very little ph up. i mix 12 gallons at a time and it takes very little to raise/lower the ph

[Kalidank1]

Thanks matt for the help

[d0ct0r]

What soil mix and nutes are you using? And your water source tap/filter/distilled/reverse osmotic etc ? Have you flushed? Whats your feed routine?
d0ct0r

[Kalidank1]

Im using miracle grow organic soil mix the nutes are fox farm nutes for veg haven't gotten the one for bloom gonna do that today. And also the water I use is bottled drinking water I haven't been checking the Ph when I went to check the soil was at 5.8 and the water I use is at 7 I flushed already with pure water and haven't seen any more browning leaves but my question is that I've been flowering for about two weeks and it still hasn't given me a sign if its male or female

[silent leprechaun]

I found all of this on a different site. These are all usable.

Fertilizer:

The majority of fertilizers are high in ammonium nitrate, ammonium sulfate, and/or sulfur-coated urea because of this fertilizing soil will gradually change its pH. This is not a quick fix, but it is a good way to slowly make soil more acidic which can make it far easier not to over shoot.

Sulfur:

Sulfur can be purchased in various forms in gardening supply stores and nurseries. Though faster than the above mentioned methods sulfur is also rather gradual and may take several growing seasons for large plots of land if you need a dramatic pH shift. As an example adding 1.2 oz of dusting sulfur to sandy soil (sand requires less sulfur to alter pH) or 3.6 oz to regular soil per square yard will reduce soil pH one point. You generally should not attempt to change soil pH more than one point per season with this method. The sulfur you purchase should have precise directions for its particular use.

Vinegar:

This is a quick fix and works especially well in container gardens or pots. Add two tablespoons of vinegar to a gallon of water for watering. Be sure to monitor the pH change closely as this method is easy to over shoot with.

[Kalidank1]

Thanks silent now my question is how much watts should I use for bloom if I'm going cfl all the way

[silent leprechaun]

That all depends on where you are growing, ie a tent or just a space in an attic. How many plants do you have ? How long are you going to veg and how tall are they now ?

Personally I would go with at least 400w of 2700k CFL pm2 with a decent reflector of course and in a 100% reflective mylar grow tent.

I use 190w of LED but this is supposedly equivalent to 600w HPS the company says and I did get some wicked results on my last grow.

I also use 4 x 20w of CFL but this is mainly for heat purposes as my LED runs cool. So in theory I would be using 680w in my 90x90cm space. But I only use 270w.

But LED, well, good LED lights are a different ball game. You can see in my second grow in my signature to see how my plants are monsters after just 4 weeks of growth.

I can fit 4 good plants in my 90 x 90cm space. Any more and I will be cramping my space and the plants will be fighting for the LED light. 4 plants is just enough for a 1m2 space.

Well, unless you are trying a SOG grow.

So I'll leave it with you what light you want to grow with. But I would say a minimum of 400w for a 1m2 grow tent. I might even go for those umbrella shaped hoods to get even coverage too.

Take care dude

S.L.