Question

Crops like pea,pulses and soyabean don't require any manure while crops like wheat,maize and barley need manure from time to time. Give reason

Answer 1

Explanation:

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Answer 2

Crops like peas, soyabean, and pulses do not require manure for growing, while the crops like maize, wheat, and barley require manure from time to time.

• Pulses like peas are known as leguminous plants. The roots of these legumes contain rhizobia bacteria.
• The Rhizobium are engaged in a symbiotic relationship with such crops. The bacteria break down the atmospheric nitrogen. The nitrogen is used up in the soil and enriches the nutrient content of the soil.
• Soyabean too has a high demand for nitrogen but is a natural nitrogen fixer. Thus, crops like pulses and peas do not require manure.
• This is in contrast to the condition of crops like wheat, maize, and barley that require manure. These crops require outside help (fertilizers and manure) to enrich the nutrient content in the soil.
• Manure in the soil of such crops helps them in gaining more nutrition.

Hence, Crops like peas, soyabean, and pulses do not require manure for growing, while the crops like maize, wheat, and barley require manure from time to time.

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