Quote Originally Posted by SinCityPima
Hello again everyone. I am here to get some tips on what I'm doing to correct Phosphorous deficiency i bought a soil test kit and the phosphorous test and it came back very low. so since im already using Mg soil with about 30-40 % per-lite I am using this measurement since i heard the MG soil could be to strong for my babys. After i did that i went and got MG All purpose water soluble plant food. I did a full dosage but only watered about less than half a gallon. I did the full dosage cuz its N-P-K is 20-8-15 I know its not alot of P but its all i could get at the moment I wanna move to a better and safer brand but I cant find a place that sells the good ones for MJ. The PH of the water was about 8 before I watered and i checked the run off it was about 7 and the soil after watering is at about 7.5 or 7 even but its dropping slowly.
Get some pH down and pH your water to about 6.3 - 6.8 depending on your soil conditions. I try to pH to 6.5 always, but if I don't hit it exactly it's OK.

A pH of 7.5 is starting to push it I think. My plants were starting to look weird and I had a pH of about 7.3 - 7.5 in the soil. I watered with some pH 6.5 water and they started to look better after a bit.

How old are your plants? If they're really young you may be hurting them by feeding them. I don't know much about MG soil, but I think it's got some nutrients in it already that will cover you for the first 2-3 weeks.

It's going to be a little hard for anyone to give you advice without more info (plant age, clone/seed, watering frequency, size of pots, medium, etc.). Maybe fill out the troublshooting form in the sticky.

Also, are you down in Pima Co AZ? Just curious as I was down in Tucson last month and got mugged...
lampost Reviewed by lampost on . Some Advice Please Hello again everyone. I am here to get some tips on what I'm doing to correct Phosphorous deficiency i bought a soil test kit and the phosphorous test and it came back very low. so since im already using Mg soil with about 30-40 % per-lite I am using this measurement since i heard the MG soil could be to strong for my babys. After i did that i went and got MG All purpose water soluble plant food. I did a full dosage but only watered about less than half a gallon. I did the full dosage cuz its Rating: 5