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प्रश्न
Define manure. What are different manures and how do they affect the soil ?
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उत्तर
Manures are natural fertilisers. They are the source of organic matter that supply nutrients in small quantities.
There are three types of manure:
1. Farmyard manure (FYM),
2. Compost,
3. Green manure.
Manure enriches the soil with nutrients and adds organic matter (humus) to the soil. Humus improves the soil texture for better water retention and soil aeration.
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संबंधित प्रश्न
How plants get nutrients ?
Choose plant’s micronutrients and macronutrients from the following Iron, Chlorine, Sulphur, Copper, Nitrogen, Calcium, Manganese, Potassium, Zinc, Magnesium, Molybdenum, Phosphorus.
What is green manuring ? Give suitable examples for green manures.
Explain why a legume crop does not require nitrogenous fertilizers ?
Distinguish between mixed cropping and intercropping.
Classify plant diseases depending upon their occurrence and transmission.
Explain what will happen if in a cultivated field only manures are supplied and in another field only fertilizers are supplied, keeping all other conditions similar.
Discuss the various methods which are used to control plant diseases.
Why is organic matter important for crop production?
Differentiate between the following
Mixed cropping and Intercropping
