Author Topic: Differentiation Between the pH Effect and the Bicarbonate Ion Effect  (Read 264 times)

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Offline Don

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Differentiation Between the pH Effect and the Bicarbonate Ion Effect in Causing Lime-Induced Chlorosis


Abstract:
Lime-induced iron deficiency anemia has been recognized for several years as a drag wherever plants square measure grownup on carbonate soils. There square measure several factors related to and influencing this kind of iron iron deficiency anemia and since of this it's been terribly troublesome to see the connection between the factors and iron deficiency anemia.


There square measure high concentrations of hydrogen carbonate in carbonate soils. thanks to this high concentration, it had been believed that the presence of the hydrogen carbonate particle was inflicting iron deficiency anemia. it's been projected that the pH scale of the expansion medium was the causitive issue of lime-induced iron deficiency anemia. Most carbonate soils have a pH scale vary around eight.0. At this pH scale the solubility of iron is incredibly low, and it had been believed that iron deficiency anemia was a results of iron being insoluble at a high pH scale. Iron iron deficiency anemia has been elicited in plants by increasing the phosphorus concentration within the growth medium. Iron phosphates have an occasional solubility and it had been believed that the offered iron was precipitated by the phosphates.

The interference of metals like metallic element, nickel, cobalt, zinc, and copper seems to be an element touching the absorption of iron by plants. it had been thought that AN officious particle (Ni, Co, Ca, Zn) might interfere with the translocation of iron within the malic or malonic acid complexes (Tiffin and Brown, 1962).

Source:
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http://digitalcommons.usu.edu/etd/3589/


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