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以前人们在施肥对大豆品质及产量影响的研究中多偏重于种肥的效果研究,而对叶面喷肥的效果研究较少。多数理论研究结果表明,大豆开花后20d,特别是25～30d,蛋白质含量迅速增加,50d 左右达到最大值。蛋白质的绝对含量,以开花后17～27d 积累最快。对于油分的积累,大多数研究结果表明,花后30d 左右有一个快速积累期。在蛋白质、油分的快速积累期
In the past, people mostly focused on the effect of seed fertilizer in the research on the effects of fertilization on the quality and yield of soybean, but less on the effect of foliar fertilizer application. Most of the theoretical results show that the content of protein increases rapidly at 20 days, especially 25-30 days after flowering, reaching the maximum at about 50 days. The absolute content of protein, the fastest accumulation of 17 ~ 27d after flowering. For the accumulation of oil, most of the research results show that there is a rapid accumulation period about 30 days after flowering. In the protein, the rapid accumulation of oil