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白村乡白村1989年应用地膜覆盖技术,在757.7亩河滩盐碱地上种植玉米,平均亩产379公斤,较露地种植平均亩产160公斤增产219公斤,增产率达137％。白村沿河边的河滩碱地,历年来种植粮食作物捉苗差,产量低,平均亩产仅100—150公斤。为了改变这一落后面貌,1989年白村村委决定应用地膜覆盖综合技术,对大面积河滩碱地进行改良利用。村委为村民无偿提供地膜,组织村民统一铺膜,统一下种。生长期间调查表明:由于地膜覆盖使膜内盐分减少,提高了玉米的捉苗率。覆盖田捉苗率达99％,而露地田只有30％左右。由于盐碱的为害,露地植株表现为植株低,生长势
White village white village 1989 mulching technology, 757.7 acres of floodplain corn planting land, the average yield of 379 kilograms, more than open field planting an average yield of 160 kg 219 kg, an increase of 137% yield. Baicun riverside beaches along the river, over the years to grow food crops caught poor seedlings, low yields, the average yield of only 100-150 kilograms. In order to change this backwardness, in 1989 Baicun Village Committee decided to apply the comprehensive technology of plastic film mulch to improve the utilization of large-scale floodplain. The village committee shall provide the villagers with the plastic film at no-cost and organize the unified filming of the villagers. Growth during the survey showed that: as the film mulching to reduce the salt within the film, increased maize seedling rate. Field coverage seedling rate of 99%, while only about 30% open field. Due to the damage of saline alkali, the exposed plants show low plant growth potential