why does black soil lack organic matter?
Answers
Answer:
Friends , let me float another hypothetical question , how do you feel , a soil could face a number of fertility constraints, depending upon the crop requirement , and the target yield. A given soil , irrespective of crop , may not face any nutrient constraint if target yield is well within the nutrient removal far lower than the application or reserve pool of nutrients in the soil . If we fix the target yield on the higher side , the removal will immediately exceed the application of inputs , the crop will face the nutrient constraint of varying magnitude . Do you feel ,a soil is optimum or suboptimum in a given nutrient depending upon the yield target?. Your responses please.
Answer:
Loss of soil organic carbon content can limit the soil's ability to provide nutrients for sustainable plant production. This may lead to lower yields and affect food security. Less organic carbon also means less food for the living organisms present in the soil, thus reducing soil biodiversity.
Black soil in India is rich in metals such as Iron, Magnesium and Aluminum. However it is deficient in Nitrogen, Potassium, Phosphorous and Humus. Black soil is of red colour mainly due to its iron oxide content. ... The soils are fine grained contain high proportion of Calcium and Magnesium carbonates.
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