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本项研究针对目前大豆施化肥元素较单一而导致产量低、效益差的问题,根据大豆营养需要和土壤养分现状,进行了以高产、高效为目标的不同元素结构.不同养分水平的几十种配方施肥试验。经过三年的试验.筛选出可以在生产上示范推广的多元配方A_4、A_2、C_1,分别比现在生产上应用的二元素亩增产22.8公斤、21.4公斤和20.6公斤;增加净收入27.25元、27.70元和26.5元;提高化肥N+P_2O_5利用率13.6％、15.2％和13.5％。为大豆生产提供了增产技术。
In this study, the current soybean fertilizers single element lead to low yields and poor efficiency issues, according to the needs of soybean nutrition and soil nutrients status, carried out with high yield and high efficiency for the target of different elements of the structure of different nutrient levels of dozens of Formula fertilization test. After three years of experiment, the diversified formula A_4, A_2 and C_1, which can be demonstrated and promoted in production, were screened out and increased by 22.8 kg, 21.4 kg and 20.6 kg respectively than the two-element mu currently used in production; the net income increased by 27.25 yuan and 27.70 yuan Yuan and 26.5 yuan; improve fertilizer N + P_2O_5 utilization rate of 13.6%, 15.2% and 13.5%. Soybean production to provide stimulation technology.