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近年来,农家肥数量减少,化肥使用量增大,深耕和施肥机械化水平提高。但是,大量的化肥和农家肥集中在春播前结合整地施入,造成肥料全部集中在10-15厘米的土壤表层,施肥过浅,作物种子萌发处于高浓度肥料包围之中,烧苗、烧芽现象严重。同时由于肥料集中于土壤浅层;作物根系发育不良;表层多、纵深少,吸收水肥能力和抗旱抗倒伏能力差,影响作物正常生长发育,不利农作物高产稳产。据多年试验及实践总结,秋压底肥有以下特点: 1、增产效果显著据小麦上的试验,在施肥量相同的条件下,秋施深施底肥技术比春播前浅施10-15厘米的常规施肥方法,亩增产小麦85.5公
In recent years, the number of farmyard manure has decreased, the amount of fertilizer used has increased, and the mechanization of deep plowing and fertilization has been raised. However, a large number of fertilizers and peasant fertilizer concentrated in spring before sowing in combination with soil preparation, resulting in fertilizer all concentrated in the 10-15 cm soil surface, over-fertilization, crop seed germination in the high concentration of fertilizer surrounded by burning seedlings, burning buds Serious phenomenon. At the same time, due to the concentration of fertilizers in the shallow soil layer; poor crop root development; surface more, less depth, ability to absorb water and fertilizer and drought resistance lodging, affecting the normal crop growth and development, adverse agricultural high yield stable. According to many years of experiments and practice concluded that autumn press bottom fertilizer has the following characteristics: 1, a significant yield increase effect According to the wheat experiment, the same amount of fertilizer under the conditions of autumn Shi deep fertilizer technology than before spring sowing Shi Shi conventional 10-15 cm Fertilization methods, 85.5 acres of wheat yield increase