Originally Posted by
jingo
So I'm going to make a major assumption that if I'm wrong would change everything, that is that you are in a soft water area.
You want to water until you get about 10% runoff at the bottom of the pot and usually people will feed one day and maybe go a couple days of water. If you're experiencing high temperatures you definitely want to do less nutrients and more water.
I don't know if you're in Fox farm soil, but they haven't been as stable in calcium ever since they exhausted their original resource, you may need to supplement with calcium and it actually is required to make the leaves green up real well, then you also get magnesium and iron which are real important.
If your water is soft, you can usually just water in some calcium and magnesium, be sure to reduce nitrogen on your normal feeds because all calcium magnesium supplements have nitrogen. You can also do a foliar feed which is usually preferred just to keep from pouring so much salts down into the soil.
Now if you are in a hard water area everything else gets kind of sketchy, you can get enough minerals building up in your soil just from the water to give you trouble growing cannabis. There are techniques you can use such as repotting the plant at least three times during its growth cycle so that you don't need to fertilize during any of the vegetative period or early flower.
J
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