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近年来,作物地膜覆盖栽培面积越来越大,对农业的丰产丰收起到了巨大的作用。当然,在覆膜栽培中,还存在一些问题,影响增产效果的进一步发挥。为此,要针对具体情况,采取可行有效措施,搞好覆盖栽培,以夺取更大的效益。一、作物早衰。在地膜覆盖栽培生产中,时有早衰现象发生,如覆膜田土壤肥力较低,有机肥含量少,底肥不足,密度不合理等,都会引起作物早衰而导致减产。对策是覆膜要选择土壤肥力高的田块,进
In recent years, crop mulching covers an area of more and more large, the bumper harvest of agriculture has played a huge role. Of course, in the film cultivation, there are still some problems that affect the further development of yield. To this end, we must take practical and effective measures and do a good job of covering cultivation in the light of specific conditions so as to obtain greater benefits. First, the crop is premature. In the plastic film mulching cultivation, the phenomenon of premature decay occurs sometimes. For example, the lower fertility of the soil in the mulched field, the less organic fertilizer content, the insufficient base fertilizer and the unreasonable density will lead to the premature decline of the crop and lead to the decrease of yield. Countermeasures are to choose the film to plots of fertile soil, into