Currently, the average yield of rice per hectare is 1756 kg. It is the lowest in the world. The yield per hectare of rice in Japan, China and Korea is about three times that of India. This is because:
a. Rainfall in India is uncertain and is concentrated to four months.
b. There is a lack of assured water supply through irrigation in rice growing areas.
c. General fertility of Indian soils is less because these have been cultivated from the last 5000 years.
d. Farmers do not use efficient methods of cultivation.
e. Widespread *** in the rural areas prohibits the use of adequate amount of fertilizers, pesticides, etc.
