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1983—1985年,依据“夏大豆营养特点和需肥规律”研究的结果,在山东省巨野县夏官屯乡温庄村,进行了三年中间试验和大面积高产试验,总结出了亩产200公斤以上的高产、稳产、低耗、高效的生育指标和配套技术。夏官屯乡位于巨野县城东8公里。全年等于或大于10℃的积温在4500℃以上,夏大豆生育季节积温3000℃左右,6—9月的平均温度20—26℃;全年光照时数2500小时以上;年降水量近700毫米,其中70%降水集中在夏大豆生长旺季;全年无霜期200天左右,适于一年两熟。土壤为黄泛淤土,0—20厘米耕层含有机质1.09—1.45%、全氮0.079—0.095%、水解氮64—71ppm、P_2O_50.164—0.192%、速效磷11—
From 1983 to 1985, based on the results of the study on the characteristics of summer soybean nutrition and the rule of needing fertilizer, an intermediate experiment and a large-area high-yield experiment were conducted in Wenzhuang Village, Xiaguantun Township, Juye County, Shandong Province, More than 200 kilograms of high yield, stable yield, low consumption, high fertility index and supporting technology. Xiaguan Tuen Township is located 8 kilometers east of Juye County. The annual accumulated temperature equal to or greater than 10 ° C is above 4500 ° C, the accumulated temperature of summer soybean is about 3000 ° C, the average temperature from June to September is 20-26 ° C, the annual number of hours of illumination is over 2500 hours, and the annual precipitation is nearly 700 mm , Of which 70% of precipitation concentrated in the peak season of summer soybean growth; annual frost-free period of about 200 days, suitable for two crops a year. Soil is the yellow flood soil, 0-20 cm of tillage containing organic matter 1.09-1.45%, total nitrogen 0.079-0.095%, hydrolyzed nitrogen 64-71ppm, P_2O_50.164-0.192%, available phosphorus 11-