Quote Originally Posted by Senny
Ph of water is about 7,5. Lowered it to ~ 6,6 - 6,7 (lemon acid) and flushed the plant with approx. 2 litres of water.
I was really impressed, that flushed liquid had ph about 7,5! That means that real soil ph level is up to 8!!!!
Damn...
Can I lower soil ph with permanent watering (provided I lower water ph to about 5,5?)
If these are accurate numbers, then you found your problem. 8.0 is when Nitrogen, Phosphorus, and Potassium will start to be be locked out from the plant. meaning it wont absorb these nutrients, which are essential. what do you mean by permanent watering? you should never keep your soil completely moist. the only exception to this rule is when they are just starting to sprout. I know polishpollack said that flushing will not help, but it may. but dont flush with acidic water. flush with properly ph'd water (right around 6.5) and continue to water with this, flushing whenever the soil's ph starts to rise.
Faddenator Reviewed by Faddenator on . Undefined problem (cry for help) Hello to everyone! My cannabis is just 3 weeks old. About a week ago a problem occurred with my plant. At first, tops of the leaves became turning brown and then dried out. That necrosis slowly spread and the growth (as it seemed) slowed as well. I thought that my plant requires more fertilizers, as I was very careful about applying them. After adding an organic fertilizer (proper solution), just in 3!!! days my plant resumed growth, but leaves become.. well you see. Light: small 6400K Rating: 5