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प्रश्न
Write down two advantages of fertilizer over manure
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उत्तर
The advantages of fertiliser over manure are as follows:
1. Fertiliser is very rich in plant nutrients such as nitrogen, phosphorous, and potassium, whereas manure has a low nutrient content.
2. Fertiliser is soluble in water and hence readily absorbed by the crop plants, whereas nutrients in manure are absorbed very slowly as nutrients exist locked inside the organic compounds of humus.
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संबंधित प्रश्न
How do plants get nutrients?
Compare the use of manure and fertilizers in maintaining soil fertility.
Choose plant’s micronutrients and macronutrients from the following Iron, Chlorine, Sulphur, Copper, Nitrogen, Calcium, Manganese, Potassium, Zinc, Magnesium, Molybdenum, Phosphorus.
Give a short account of biofertilizers.
Explain why a legume crop does not require nitrogenous fertilizers ?
Explain the objectives of mixed cropping.
Why are leguminous crops desirable in crop rotation?
Give two examples of narrow leaved rabi season weed.
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.
Explain the various preventive measures against insect pests.
