Advertisements
Advertisements
प्रश्न
How does excessive irrigation lead to soil salinity ?
Advertisements
उत्तर
Excessive irrigation leads to soil salinity as it causes water logging. The evaporation of excess water concentrates salt at the soil surface. This causes an increase in the soil salinity. The crops die as the roots of the crop plants have limited access to oxygen and increased salinity.
APPEARS IN
संबंधित प्रश्न
Compare the use of manure and fertilizers in maintaining soil fertility.
Name three most important nutrients required for plant growth.
During the downpour in a village, the rain water carried away excess of nitrogenous and other compounds present in the soil to a pond. How will they affect the growth of algae and phytoplankton in the pond ?
Define manure. What are different manures and how do they affect the soil ?
Explain various steps in hybridization of crop plants.
Explain various methods of weed control.
Explain various effects of weeds on crop plants.
Explain various types of irrigation systems in India. How can efficiency of applied water be increased in agriculture.
Why is organic matter important for crop production?
Differentiate between the following
Mixed cropping and Intercropping
