Question

A a pulse crop is grown in the term internal between two cereal crops to compensate for the

Answer 1

A pulse crop is grown between two cereal crops to compensate for the loss of nutrients, especially nitrogen.

Explanation:

• Legumes/pulses are nitrogen-fixing crops while cereals are nitrogen-demanding crops.
• They have nodules on their roots which contain nitrogen-fixing bacteria like Rhizobium capable of fixing atmospheric nitrogen and making it available for plants.
• After the harvest of pulses, the biomass act as green manure rich in nitrogen thus making the farmland fertile again for the next cereal crop.

• The practice of growing different types of crops in the same area alternately to restore soil fertility is called crop rotation.

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Answer 2

Lentils crops like pulses of kidney beans, butter beans, broad beans are grown between two cereal crops because they provide nitrogen through their roots and it’s very useful for soil fertility.

Explanation:

• Leguminous crops like all kinds of pulses are grown between two cereal crops because a bacteria called rhizobium is found in the root nodules of these pulses and it converts atmospheric nitrogen soluble in water which plants can use and is also used as the soil fertilizer.
• Crop rotation also increases fertilizing capacity of the soil.

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