Advertisements
Advertisements
प्रश्न
What is the advantage of using insect resistant varieties?
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Classify nutrients according to their sources.
Choose plant’s micronutrients and macronutrients from the following Iron, Chlorine, Sulphur, Copper, Nitrogen, Calcium, Manganese, Potassium, Zinc, Magnesium, Molybdenum, Phosphorus.
Compare the use of manures and fertilizers in maintaining soil fertility.
Why is irrigation essential ?
How does excessive irrigation lead to soil salinity ?
Write about three main criteria which should be considered while selecting the crops for rotation?
Explain the methods of controlling insect pests.
Compare between mixed cropping and intercropping. Write down from advantage of both of these techniques.
Why is organic matter important for crop production?
Differentiate between the following
Mixed cropping and Intercropping
