据试验,麦收后在西瓜行间结合松土锄草,铺盖一层麦秸草(若是麦套西瓜,麦收后麦茬无须急着耕翻,可待以后进行浅锄灭茬),能提高西瓜产量一至二成,不仅当季增产,且能持续增产。其增产原因:一是覆草可以保持土壤疏松,减少水分蒸发和杂草萌发;二是能够助蔓牵须,在盐渍薄地覆草还可以抑制返盐:三是雨季抑制病菌传播,减少烂瓜;四是可改善土壤理化性状,增加土 According to the test, after the wheat is harvested, the weeds are mixed with loose soil by rows of watermelons, covered with a layer of straw grass (if the wheat is watermelon and wheat is harvested, As a result, not only the quarter increase, but also continue to increase production. The reasons for the increase: First, mulch can keep the soil loose, reduce the evaporation of water and weed germination; the second is to help Manran, in the salty thin grass can also inhibit the return of salt: the third is the rainy season to inhibit the spread of germs, reduce rotten Melon; fourth is to improve soil physical and chemical properties, increase soil