Aerobic Cultivation to reduce water usage
Q. As against present day rice cultivation method, a new rice growing method reduces water use and enhances water efficiency through growth of crops in condition where there is plenty of oxygen in the oil. This new method is:- Published on 15 Sep 15a. Anaerobic cultivation
b. Aerobic cultivation
c. Oxygen cultivation
d. Hydrogen cultivation
ANSWER: Aerobic cultivation
Conventional method of rice cultivation uses 5000 litres of water for producing 1 kg of rice from which 2000 litres is lost due to seepage losses and flooding. New approach called aerobic rice cultivation involves growing crops in aerobic condition, where there is plenty of oxygen in the soil. Suitable areas for aerobic rice cultivation comprise irrigated lowlands where there is lack of rainfall to sustain rice production. TN, Jharkhand, Chhattisgarh, Bihar, Odisha, Karnataka and east UP are areas where this method of rice cultivation is practices. Water productivity is said to be higher in aerobic rice by 64-88 percent and utilises only 3500 litres of water to produce 1 kg of rice.
