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1982年吉林地区遭受了建国以来少见的大旱,在大旱之年水稻仍获得了丰收,全区水稻总产10.27亿斤,比丰收的1981年还多产1.44亿斤。获得丰收的原因是多方面的,但从水稻的灌溉方面来说,在遭受大旱的情况下,改变了过去长期淹较深水层的水稻灌溉方式,也是增产的一个重要原因。以下分别介绍水稻节水灌溉增产实例及对水稻灌水方式的改进意见。
In 1982, Jilin Province suffered a rare drought since the founding of the People’s Republic. In the drought year, rice still achieved a bumper harvest. The total output of paddy rice in the region totaled 1.027 billion kg, more than 144 million kg more than the harvest in 1981. There are many reasons for this bumper harvest. However, in the case of rice irrigation, in the case of severe drought, it has changed the pattern of paddy irrigation which has been submerged in deep water for a long time and is also an important factor for increasing production. The following are introduced examples of paddy water-saving irrigation yield and improvement of rice irrigation methods.