Aerobic rice just like other upland crop which is more susceptible to Fe deficiency but in same soils other cereals crops not showing Fe deficiency as in case of aerobic rice.
Dr Masud you are correct but you mentioned about Fe in soil system. At the same time, Aerobic rice shows Fe deficiency in alkaline condition of soil but not other cereals crops shows Fe deficiency in alkaline soils. This is my question.
Yes, Destiny but my question is that why aerobic rice is more sensitive to Fe deficiency than other cereals crops like barley, wheat , maize etc.?
Iron solubility is a function of pH. In calcareous and alkaline environment iron deficiency becomes more prevalent. The sulfuring of alkaline soil can work to remediate iron deficiency as there is plenty iron in the soil usually. When soil is less than pH 7.3 iron deficiency is not very common. Soils low in organic matter can also lead to nutrient issues including iron. Soluble organic acids including fulvic and humic acids are excellent for their ability to mobilize insoluble iron. If rice is diagnosed as having iron deficiency the foliar application of iron in chelated form can remediate the iron deficiency. If foliar content is above 50 ppm iron should not be an issue if it is less 25 ppm your rice will probably become chlorotic or yellow especially the terminal apices. The use of tissue analysis can be helpful for identifying iron deficiency. The paddy rice results in a reducing environment which can promote iron solubility. Besides the use of foliar analysis soil analysis will lead to a deeper understanding of the problem and how to approach it.
Dear Babu, is the Fe taken up and transported to the leaves at a normal concentration? Paul.
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