View Full Version : ph level too high
misty
05-04-2004, 08:21 AM
hi, i am 4 weeks into flowering and ny ph level is reading 4.5 too acidic,whats the most effective way to raise this level? i am growing in a mixture of soil and perlite using miricle grow 15 30 15 every 4th watering, next time i will have built up nutrients to 3/4 strength.
I have some bicarbonate of soda but i understand this is not the most efficient :
bonbon
05-04-2004, 09:49 AM
dolomite lime(available at any garden shop)of course you know a soil "ph"of 6.2-6.5 for soil,will give you a safe buffer zone up or down...sweet dreams....bonbon :eek:
misty
05-04-2004, 02:44 PM
thanks, does lime dissolve in water or will i need to try and fork it in? :
bonbon
05-04-2004, 09:26 PM
you might have to flush some of the fert out(that itself may raise it)or after you check it,and it's still a little low,wait for the medium to drain,and water with the lime checking the ph every day till you get you're target range,it will take a few days to do this,but it's the safe way,better yet,follow the directions for a quick fix....bonbon
wheredaweedat13
05-05-2004, 08:46 AM
hi, i am 4 weeks into flowering and ny ph level is reading 4.5 too acidic,whats the most effective way to raise this level? i am growing in a mixture of soil and perlite using miricle grow 15 30 15 every 4th watering, next time i will have built up nutrients to 3/4 strength.
I have some bicarbonate of soda but i understand this is not the most efficient :
is your plant showing any signs of the low ph ??
misty
05-05-2004, 01:21 PM
some speckling of the smaller leaves,(like an orange color) larger leaves have mostly turned yellow and dropped but other than that they are budding well. I checked the ph again and it is now around 5-5.5. I got some lime and i will add a little with water next watering. I gave a small feed of epsom salts 2 waterings ago as i think it may be a magnesum deffiancy with the speckling on the leaves, it dont seem to be getting any worse
thanks for your help
bonbon
05-05-2004, 06:03 PM
sounds like you've caught it in time,dont forget magnesium is alkaline too, so it will raise it(ph) some also,it will come around soon....bonbon :eek:
misty
05-06-2004, 08:09 AM
hey bonbon thanks for help, didnt know epsom salts was alkiline, maybe dats why my ph levels are a little better than before. Anyways man things are looking good.
thanx :)
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