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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
Compare the use of manure and fertilizers in maintaining soil fertility.
Name three most important nutrients required for plant growth.
Give two limitations of using manure.
How does excessive irrigation lead to soil salinity ?
Why are leguminous crops desirable in crop rotation?
Define plant breeding? Describe the various methods of plant breeding.
Classify plant diseases depending upon their occurrence and transmission.
Explain the methods of controlling insect pests.
Distinguish between fertilizer and manure. Give suitable examples. What are advantages and disadvantages of using fertilizer?
Define irrigation. Why is irrigation of crops essential? Mention the harmful effects of excessive irrigation.
