Question

4. Explain two important changes in the field of agriculture which increased the agricultural produce​

Answer 1

Agriculture is the science and art of cultivating plants and livestock.[1] Agriculture was the key development in the rise of sedentary human civilization,

1. changes=1962, one farmer fed 25.8 persons. In the 50 years since, he has taken on considerably more responsibility and now feeds 155. 50 years of change mean farmers can produce more food and fiber on fewer acres and with fewer nutrient inputs.
2. In 1950, U.S. corn acreage totaled about 82 million. That figured dropped to 59 million in the late 60s but hit 90 million last year. Soybean acreage has increased from 18 million in 1950 to 80 million by 2007. Total corn production in 1950 totaled 2.7 billion bushels from those 82 billion acres. In 2009, on similar acreage, corn production topped 13 billion bushels. “That’s a 430 percent increase,” Miller said.

Answer 2

Answer:

The two important changes are :-

a) The use of Iron implements began. Ploughs with iron edges were introduced as farming implement. This helped to plough the land with dense clay soil better then the wooden ploughs.

b) The technique of growing paddy saplings at one place and then transplanting it into fields. This helped to increase survivability of sapling and increase in the yield.