发布网友 发布时间:2023-10-11 06:50
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热心网友 时间:2024-11-18 16:49
The 20th century 60's and the 70's South Asia's green revolution had demonstrated the agricultural technology brings income.In green revolution period, the small farmers have used the paddy rice and wheat's high-yield variety, increased the investment in the irrigation and the chemical fertilizer aspect, enhanced the agricultural proctivity large scale.Generally speaking, for 40 years, the new technology already made the whole world grain yield to increase above in the past one time.From 1965 to 2000, the global each hectare land grain output enhanced 71% equally.