write any three phenomenon of green revolution
Answers
Answer:
The Green Revolution, or the Third Agricultural Revolution, is the set of research technology transfer initiatives occurring between 1950 and the late 1960s, that increased agricultural production worldwide, beginning most markedly in the late 1960s.The initiatives resulted in the adoption of new technologies, including High-Yielding Varieties (HYVs) of cereals, especially dwarf wheat and rice. It was associated with chemical fertilizers, agrochemicals, and controlled water-supply (usually involving irrigation) and newer methods of cultivation, including mechanization. All of these together were seen as a 'package of practices' to supersede 'traditional' technology and to be adopted as a whole.
Explanation:
Green revolution came in the five-year plan of 1951 to make India free from the dependency of food grains from other parts of the world. Green Revolution is a revolution of using modern farming methods for higher yield. The effects of the green revolution are:
• H.Y.V seeds stand for High Yield Variety seeds were started being used in the cultivation of crops. These are better quality seeds which increase the yield and enables the farmers to go for multiple cropping. Earlier the yield of wheat grown was 1300 Kg per hectare which increased to 3200 Kg per hectare.
• Modern methods of irrigation like electric tubewell were introduced which were able to irrigate much larger areas of land more efficiently.
• Chemical fertilizers and pesticides were used to produce better results in the production of crops.
• Use of modern farming machinery like tractors and threshers which made ploughing and harvesting faster.
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The Green Revolution is the term applied to the major advances in crop breeding genetics made in the 1960s which significantly raised the yields of some grain crops. Although crop experimentation is something that takes place continually, and has done so since the earliest settled agriculture about 8000 years ago, there are nonetheless step-like advances made from time to time in producing new seed varieties, and the Green Revolution can be seen as one of these. However, rather than the full range of crops experiencing rises in yields per hectare, it was only really wheat in particular, and rice to a lesser extent, which experienced the dramatic yield rises characterizing the Green Revolution (Tables 1 and 2). Between 1961 and 1971, the advances of the Green Revolution can be clearly seen, as, in that decade, yields per hectare of wheat increased by about two-thirds, and those of rice by about one-third. In all the selected regions shown in Tables 1 and 2, it can be seen that yields of both wheat and rice have continued to rise in each subsequent decade, including in Africa, such that between 1961, before the benefits of the Green Revolution, and 2005, the last year for which figures were available at the time of writing, wheat yields per hectare have increased by over 200% in Asia, Africa, and India, although the overall increase in rice yields over the same time period has been rather more modest.