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黄豆属中耕作物,播种出苗后,第一对单生叶展平时,就要进行田间管理。一,补苗和补种黄豆种粒大,子叶出土比禾本科作物困难。因此,黄豆出苗时,往往由于整地和播种不够细致或因气候干旱而致缺苗。在实际生产中,黄豆缺苗一般达10％左右,严重的可达20％至30％,所以,缺苗是黄豆减产的一个重要因素。为了保证全苗,就应当在出苗阶段采取措施补苗补种; (1) 搞好苗情调查,统计各黄豆地块的缺苗面积,缺苗程度和分布情况; (2) 补种,根据苗情调查结果,缺塘在30％以上,就要即时补种,为了使补种的黄
Soybean cultivation crops, sowing seedlings, the first pair of solitary leaves spread normally, it is necessary field management. First, seedling and replanting soybean seeds, cotyledons unearthed more difficult than grasses. Therefore, soybean emergence, often due to land preparation and sowing enough detail or lack of seedlings due to arid climate. In actual production, the lack of soybean seedlings generally reach about 10%, severe up to 20% to 30%, therefore, lack of seedlings is an important factor in soybean production. In order to ensure full seedlings, seedling replanting should be taken in the emergence stage; (1) to do a good job of seedling survey, statistics of the lack of seedling area, lack of seedlings and distribution of each soybean plot; (2) replanting, according to seedlings Love survey results, lack of ponds in more than 30%, it is necessary to replant, in order to replant the yellow