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我市利用地膜覆盖技术栽培西瓜,1980年的面积是8亩,分两个试验点,分别增产51%和94%,经济收入增加一倍多。1981年发展到815亩,平均亩产5,177斤,比不盖地膜的每亩增产2,000多斤,增产67%。1982年推广到8,565亩,占我市西瓜计划种植面积的71.34%(计划面积为1.2万亩),增产西瓜2,000多万斤,社队增加收入200万元。地膜覆盖西瓜所以能增产,除由于覆盖后对土壤起到了增温保墒作用,使西瓜的生育期提前了,生长量加大了,同时又充分
Watermelon is cultivated in our city by using plastic film mulching technique. In 1980, the area was 8 mu, which increased by 51% and 94% respectively in two test points, and the economic income more than doubled. It developed to 815 mu in 1981 with an average yield of 5,177 catties per mu, an increase of more than 2,000 kilos per mu, or a 67% increase over that of the non-masking crop. It was expanded to 8,565 mu in 1982, accounting for 71.34% of the planted area of the city’s watermelon plan (with a planned area of 12,000 mu), an increase of more than 2,000 kg of watermelons and an increase of 2 million yuan in revenue. Watermelon mulching film so it can increase production, in addition to cover the soil played a role in warming the soil moisture, so that the growth of watermelon earlier, increased growth, while full