Question

Give two negative and two positive features of black soil?​

Answer 1

Answer:

Negative

Cracking when dry and swelling when wet makes them difficult to manage, unless they are cultivated at appropriate soil moisture levels. ... Black soil have low fertility and are poor in organic matter, nitrogen, available phosphorous and zinc. The use of fertilizers and manures results in increased crop yield

Positive

The chemical properties of black soils include pH, electrical conductivity (EC), organic carbon, calcium carbonate, clay carbonate, cation exchange capacity (CEC), extractable bases and exchangeable sodium percentage (ESP). The basic property of Vertisols is that they have high water-holding capacity.

Explanation:

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