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蔬菜地膜覆盖栽培,是近几年来发展的一项新技术。三年来进行多点试验,采取边试验、边示范、边推广的方法,取得了初步成效。覆盖面积由79年的30亩,发展到81年的8255亩,覆盖的蔬菜由五种增至十二种。82年还应用到留种田,效果良好。在上海、嘉定、宝山、川沙等县进行多点多品种试验,其中以上海县覆盖面积最大,对8～9种蔬菜覆盖栽培均获得了不同程度的增产。兹将几年来试验、示范、推广情况分析如下: (一)地膜覆盖的效果
Vegetable mulching cultivation, is the development of a new technology in recent years. In the past three years, more tests have been carried out and preliminary tests have been taken, demonstrations have been carried out, and methods for promotion have been adopted. Preliminary results have been achieved. Covering an area of 30 mu in 79 years, it has grown to 8,255 mu in 81 years and the number of vegetables covered has increased from five to twelve. 82 years also applied to stay farming, the effect is good. In Shanghai, Jiading, Baoshan, Chuansha counties and other multi-point and multi-species trials, of which the largest covered area in Shanghai, 8 to 9 kinds of vegetable coverage cultivation have received different levels of yield. The years of testing, demonstration, promotion of the situation are as follows: (A) the effect of plastic film