Plotski - 7/22/2009 08:15 sugarbeet - 7/21/2009 10:21 8970, friend also got his soy tissue tests back and also showed high iron and still has chlorosis on an 8ph. Apparently plant tissue can test high in Iron and still have defiency: http://www.news.albionminerals.com/plant-nutrition/metalosate-news-... Frequently, the iron concentration in the chlorotic leaves can be higher than in the green leaves. -- It's called Iron Chlorosis. True iron deficiency means the plant really doesn't have enough Fe in its tissues because the soil Fe levels are extremely low, or because some uptake problem occurred. Iron *chlorosis* isn't really a true deficiency (hence the name) because the plant has plenty of Fe in its tissues but cannot use it in the normal way because of excess bicarbonate. High bicarbonate is usually associated with high-pH soils in North America's Great Plains because it derives from calcium carbonate (limestone). Ed is correct about soil or dust on leaves causing erroneously high Fe readings. Use only clean leaves. | 
High Iron in Tissue Test???
