I hate to tell anyone to buy something, especially if I think it's expensive but consider recharge. It's made by Real Growers and its a soil amendment that helps strengthen your plant. It will help reverse a nitrogen deficiency. Look them up and check out their FAQ section. The offer a money back guarantee if you don't see positive results in 48 hours. It aint cheap at about $27 for 8 ounces but you may get lucky and find their single packs for about $3 each.
Description
Recharge uses colonies of living soil bacteria and fungi to increase plant available nutrition. Expect a noticeable pop and jump in plant vigor within 48 hours. Guaranteed!
Most growers can dial their nutrient program back by about 25% while growing stronger plants with better quality & yields. It sounds too good to be true, but Recharge definitely grows amazing roots for huge fruits.
It is not harmful, but most folks stop using Recharge in week 5 or 6 of flower. The additional Nitrogen that is made available is generally not needed at this stage of the plant’s lifecycle.
However, Recharge can be used to reverse a Nitrogen deficiency in mid to late flower if needed, instead of adding grow nutrients.
It will raise your pH initially but as soon as it hits the soil the microbiology will start to make carbonic acid to help buffer and regulate the pH to an acceptable zone.
Prevents nutrient and PH lockout
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It's worth a try to google these guys, I tried the sample packs and was impressed so I went off the deep end and grabbed a $40 16 oz bag. With that said I must also say I don't like paying for over priced hyped up BS! This is the only product that I can swear by so far and look forward to buying again.