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Answer:
Land area under cultivation is fixed. So, the ways of increasing farm produce on the same piece of land are :
(i) Multiple cropping: It is the most common way of increasing production on a given piece of land. Under it, more than one crop is grown on the same piece of land during the year. Indian farmers should grow at least two main crops in a year. Some farmers have been growing a third crop also over the past twenty years
(ii) Green Revolution: It was brought in India in the late 1960s, the use of HYV (High Yielding Variety) seeds for increase in production of rice and wheat. It promised to produce much greater amount of grains on a single plant.
(iii) Use of modern technology: By the use of well-developed ability to cultivate their land with greater efficiency.
(iv) Use of chemical fertilizers and pesticides: Farmers use pump sets for irrigation, threshers for threshing, harvesters for harvesting, tractors for ploughing etc. Use of chemical fertilisers and pesticides improves fertility of soil and reduces pest respectively for the particular period of production. This improves the quantity of production.