Many corn farmers rotate their crops with soybeans in a season when corn is not being grown. The most likely impact this practice has on soil quality is
A) prevention of ice damage during winter storms
B) Increase of mineral content of the soil from breakdown of organic matter
C) prevention of infiltration of heavy metals from contaminated irrigation waters
D) increase of nitrogen levels from bacteria that live within the roots of the
Answers
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Option D is correct.
- Soybean crops are legume crops.
- When farmers can't grow corn crops, due to unavailability of season.
- At that time, fields cant be left barren.
- This may cause loss of moisture and nutrients of soil.
- Thus converting land into barren and uncultivable land.
- Therefore, legume crops are grown in conversion of food crops.
- This is called crop rotation.
- Legume crops like soyabean are useful for fixing nitrogen from air into soil with the help of bacteria.
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The most likely impact this practice has on soil quality is an increase of nitrogen levels from bacteria that live within the roots of the.
Option (D)
Explanation:
- Many corn farmers choose 'Soybean for the crop rotation' when the corn is not present on the field.
- This is because the 'Soybean is the legume plant' so it has the 'bacteria in their nodules' and which is present in the roots of the plants.
- The 'bacteria which is present in the nodules' takes nitrogen from the air and store in the soil.
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