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1980年利用大连产含除草剂、厚度为0.018毫米薄膜进行春播花生覆盖试验,结果表明,它可以提高地温,保持土壤水分,防止肥料流失,有促进花生生长发育、提高产量的效果.覆膜栽培亩产荚果851.03斤,比露地栽培每亩多收荚果115.39斤,增产15.48%,生仁多收100.3斤,增产18.6%,出仁率提高2%.一、覆盖地膜对花生生育环境的影响1.提高地温 覆膜比露地地面多保存热量,白天覆膜土面及土层中温度明显高于露地;夜间膜内
In 1980, the experiment of spring sowing peanut in Dalian with herbicides and 0.018 mm thick film showed that it could increase the ground temperature, keep the soil moisture, prevent the loss of fertilizers and promote the growth and yield of peanut. 851.03 kg per mu yield pod, more than the open field cultivation per acre pod 115.39 pounds, an increase of 15.48%, Health more than 100.3 pounds, 18.6% increase in yield, kernel rate increased by 2% .1, covering the film on the reproductive environment of peanut 1. During the daytime, the temperature in the soil layer and the soil layer was obviously higher than that in the open field;