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在吉林省公主岭市刘房子镇黑土上进行的优质大豆平衡施肥试验结果表明:影响大豆高产的主要养分限制因子是钾,氮对优质大豆的粗脂肪含量影响最大,磷对优质大豆的粗蛋白含量影响最大,大豆平衡施肥不仅可以促进其生长发育,显著提高产量,还可以增加大豆子粒中粗脂肪和粗蛋白含量。不施钾肥产量降低10.6%,不施氮肥粗脂肪含量降低5.9%,不施磷肥粗蛋白含量降低6.28%。因此,优质大豆施肥应重视氮磷钾的配合施用,以达到高产、优质的目的。
The results showed that the main nutrient limitation factors affecting the high yield of soybean were potassium and nitrogen, which had the greatest impact on the crude fat content of high-quality soybeans. The crude protein content of phosphorus for high-quality soybeans The greatest impact, balanced soybean fertilization can not only promote its growth and development, significantly increase the yield, but also can increase the crude fat and crude protein content of soybean particles. The yield of non-potash fertilizer decreased by 10.6%, the content of crude fat without fertilizer nitrogen decreased by 5.9%, and the content of crude protein without phosphate fertilizer decreased by 6.28%. Therefore, high-quality soybean fertilization should pay attention to the NPK with the application in order to achieve high yield, high quality purposes.