FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The type of crops grown in a paddock is changed regularly in a planned order.
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Fast-growing crops are grown and ploughed back into the soil before they seed.
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Part of a crop not harvested for sale can be returned to the soil
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The soil is not cultivated, but seeds are sown directly into the soil.
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Detailed explanation-1: -In the future, such information may help identify crop varieties well adapted to organic systems. When cover crops are regularly part of a rotation, their residues increase soil organic matter. The organic matter feeds the growth of microbes, which increases the release of N as they die and decompose.
Detailed explanation-2: -Crop rotation helps return nutrients to the soil without synthetic inputs. The practice also works to interrupt pest and disease cycles, improve soil health by increasing biomass from different crops’ root structures, and increase biodiversity on the farm.
Detailed explanation-3: -Crop rotation helps in restoring lots nutrients of the soil as first the crop plants use up all the nitrogen in the soil . to restore the nitrogen the farmers plant a leguminous plant which contains bacteria which changes the atmospheric nitrogen in usable nitrogen compounds than being used up by the crop plants.
Detailed explanation-4: -Four-field rotations The sequence of four crops (wheat, turnips, barley and clover), included a fodder crop and a grazing crop, allowing livestock to be bred year-round. The four-field crop rotation became a key development in the British Agricultural Revolution.