5 days into flowering & an iron deficiency - What effect does it have on bud grow

sl48;3331525 said:

here is the science behind the issue that I found on a farming site.

Iron deficiency is particularly prevalent during times of rapid vegetative growth, when plants are taking up more nitrate-nitrogen. Nitrates are negatively-charged ions and when a plant takes up a nitrate ion, it has to get rid of another negatively-charged ion such as a bicarbonate ion. The more bicarbonate ions leaked by the roots into solution, the higher the pH. I once tried to grow sweet corn hydroponically, but it was such a heavy nitrate feeder that I had to adjust the pH and EC twice a day. Once the pH rose above 6.5, the leaves would start to develop yellow stripes, but as soon as I lowered the pH the yellow stripes would start to fill in with green again.

To help prevent iron deficiencies during periods of fluctuating pH, the best hydroponic nutrients include iron in a chelated form. Chela means claw, so a chelate attaches to an iron ion like a claw, helping to keep it soluble in the hydroponic solution. To know which chelate is used, check the label. The three most common synthetic chelates are EDTA, DTPA and EDDHA. EDTA is the weakest, DTPA is stronger and EDDHA is the strongest. EDDHA remains stable even at high pH levels, but it is much more expensive than the other forms. Most hydroponic nutrients include the iron in the DTPA

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