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WTF is up with my maple trees?
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<blockquote data-quote="Auggie" data-source="post: 225851" data-attributes="member: 237"><p>Iron chlorosis is caused by excess limestone. The limestone oxidizes the form of iron from ferrous (black/Fe2) to ferric (rust/Fe+3). The iron is there, but ferrous iron is a trillion times more soluble than ferric iron. Nutrients need to be soluble so a plant sucks them up as they suck up water.</p><p>Iron chlorosis is a huge issue for soybeans in certain areas of North Dakota. This can be alleviated using an ortho-ortho EDDHAiron fertilizer. A common product is soygreen. There are many iron fertilizers out there, but the ortho-ortho EDDHA has proven to be effective. Whereas, other fertilizers are more likely to oxidize and be insoluble shortly after application. </p><p>Keep in mind, over watering will solubilze carbonates and will oxidize the iron.</p></blockquote><p></p>
[QUOTE="Auggie, post: 225851, member: 237"] Iron chlorosis is caused by excess limestone. The limestone oxidizes the form of iron from ferrous (black/Fe2) to ferric (rust/Fe+3). The iron is there, but ferrous iron is a trillion times more soluble than ferric iron. Nutrients need to be soluble so a plant sucks them up as they suck up water. Iron chlorosis is a huge issue for soybeans in certain areas of North Dakota. This can be alleviated using an ortho-ortho EDDHAiron fertilizer. A common product is soygreen. There are many iron fertilizers out there, but the ortho-ortho EDDHA has proven to be effective. Whereas, other fertilizers are more likely to oxidize and be insoluble shortly after application. Keep in mind, over watering will solubilze carbonates and will oxidize the iron. [/QUOTE]
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