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प्रश्न
What is the advantage of using insect resistant varieties?
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उत्तर
Advantage of using insect-resistant varieties is that it reduces the use of insecticides. This will help in maintaining the soil fertility for a longer period of time, as harmful chemicals present in insecticides will not be added to the soil. It will also reduce the cost of crop production by removing the expenditure of buying insecticides.
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संबंधित प्रश्न
Compare the use of manure and fertilizers in maintaining soil fertility.
Give a short account of biofertilizers.
Why is irrigation essential ?
Explain the advantages and disadvantages of mixed cropping.
Why are leguminous crops desirable in crop rotation?
Classify plant diseases depending upon their occurrence and transmission.
Mention three different ways in which insect pests can attack the crop plant.
Explain the methods of controlling insect pests.
Explain various methods of weed control.
Explain the mechanism of compost formation.
