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一、水稻节水栽培的提出 全世界淡水资源日趋紧张,为了扩大水稻种植面积,节水栽培在东南亚及非洲一些国家早已采用。目前,还广泛采用于美国、澳大利亚、意大利、日本等国的灌溉稻田上。近几年,我国北方稻区,因水资源的不足,旱种水稻的面积,从1982年的12万亩,扩大到1985年的240万亩。新疆水资源,按地亩平均,接近全国1755方的平均数,但因新
First, the proposed water-saving cultivation of rice Freshwater resources around the world are increasingly tense, in order to expand rice acreage, water-saving cultivation in Southeast Asia and Africa has long been adopted in some countries. Currently, it is also widely used in irrigated rice fields in the United States, Australia, Italy, Japan and other countries. In recent years, due to the shortage of water resources in the rice planting areas in northern China, the area for dry cultivation of rice has increased from 120,000 mu in 1982 to 240 million mu in 1985. Xinjiang’s water resources, according to the average of acres, close to the national average of 1755, but due to new