Question

Explain any one method of crop production which ensures high yield.

Answer 1

Crop rotation is one of the crop production methods that ensures high yield. It is the method of growing two or more varieties of crops on the same land in sequential seasons. A crop utilises some particular nutrients in larger quantities from the soil. Then, if the same crop is grown in subsequent seasons, the soil will deplete those nutrients. Therefore, crops with different nutrient requirements are rotated. For example, legumes with nitrogen-fixing bacteria in their root nodules supply the soil with nitrogen. Therefore, these legumes are rotated with nitrogen, requiring cereals such as wheat and maize. This method reduces the need for fertilizers, thereby increasing the overall yield of crops.

Answer 2

One method used for crop production that ensures high yields is plant breeding. It is the science involved in improving the varieties of crops by breeding plants. The plants from different areas/places are picked up with desired traits, and then hybridisation or cross-breeding of these varieties is done to obtain a plant/crop of the desired characteristics. The high-yield variety crop shows characteristics such as high yield, early maturation, less water requirement for irrigation, better quality of seeds, less requirement of fertilisers, and adaptations to the environmental conditions.