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在科学家和农业劳动者的合作下,苏联农业科学技术有新的创造。在灌溉技术方面,苏联人研究出了一些新的灌溉方法,其中一种是“播种前引水灌溉法”。通常的灌溉方法一年要灌溉好几次,很费力;这种新方法是一年灌溉一次,在播种前一次把水灌足,使厚达1.5公尺的土壤饱含水分,以後就不必再灌溉。这种方法不但免去了开(?)临时灌溉渠的麻烦,而且可以提高单位面积产量,例如每公顷可以增产1,000—1,300公斤冬小麦。另
With the cooperation of scientists and agricultural laborers, there was a new creation of Soviet agricultural science and technology. In terms of irrigation technology, the Soviets have developed some new methods of irrigation, one of which is “Pre-seeding irrigation.” The usual irrigation method is irrigated several times a year, which is laborious; the new method is to irrigate once a year, soaking enough water before sowing, so that the soil, up to 1.5 meters in depth, is full of water and irrigation is not necessary afterwards. Not only does this relieve the need to open temporary irrigation channels, it can also increase yield per unit area, for example by increasing 1,000-1,300 kg of winter wheat per hectare. another