Question

From the given statements find out and justify the best method of agricultural practice.
A. Mani is repeatedly cultivating same paddy crop in his field and getting poor yield
B. Nathan likes to go for changing the crops every season and getting good yield.

Answer 1

Hint: In India, many types of crops are cultivated for various beneficial purposes. They can be used as food products or medicinal products. Thus, the cultivation of crops in India is economically very important.
After the green revolution, several high yielding varieties of crops are being cultivated in india. Due to the green revolution, wheat and rice production in India has increased several times.

Complete answer: There are several methods for cultivation of crops. A proper method of cultivation will lead to high yield and also maintain the fertility of the land.
Some of the farming methods used for the high yield of crops are shifting agriculture, plantation agriculture, intensive farming, dry farming, multiple farming and crop rotation.
Shifting agriculture is a traditional farming method in which crops are grown on the land after destroying the previous vegetation of that land (generally forests are destroyed and the land is then used for farming). As the fertility of land decreases, the same method is performed on other land. Use of fertilisers and pesticides for the high yield of crops is done under intensive farming. Farming without irrigation is called dry farming. Cultivation of the same type of crop repeatedly on the same land ultimately decreases the yield of crop by decreasing the fertility of the land.
To avoid this decrease in fertility, multiple crops are grown on the same land. This is called crop rotation. This helps in fixing nitrogen in soil and maintains fertility of soil.
Thus, the method performed by Nathan is the best method to obtain a good yield.

Note:
India is mainly an agricultural country. The major portion of India's economy is dependent on agriculture and its products. As only limited land is fit for cultivation, India has to strive to increase yields per unit area from existing farm land. The development of various high yielding varieties of several crops and various plant breeding technologies led to dramatic increase in food production in india. This phase is referred to as the Green revolution.