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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
Classify nutrients according to their sources.
What are advantages of using manure ?
How does chemical nature of the soil change due to continued use of chemical fertilizers ?
Give a short account of biofertilizers.
Define intercropping. How does it differ with mixed cropping?
Why are leguminous crops desirable in crop rotation?
Classify plant diseases depending upon their occurrence and transmission.
Give two examples each of
(a) Narrow leaved rabi season weed.
(b) Broad leaved kharif season weed.
Discuss the various methods which are used to control plant diseases.
If there is low rainfall in a village throughout the year, what measures will you suggest to the farmers for better cropping?
