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1施肥、起垄覆膜(1)施肥。化肥施用本着底肥重磷、追肥重氮的原则进行,既可防止玉米苗期徒长,又能防止后期不脱肥,保证玉米后期正常生育。根据地力、目标产量,以优质农家肥3.00万～3.75万kg/hm2、尿素225kg/hm2、过磷酸钙1200kg/hm2和二铵75kg/hm2,结合整地全田施入或在起垄时集中施入窄行垄带内。(2)起垄覆膜。每条垄分大小双行,双垄总宽110cm,首先在地边划一条地边线,沿地边线35cm处划小行边
Fertilization, ridge coating (1) fertilization. Fertilizer application basal fertilizer, heavy phosphorus, topdressing nitrogen principle, both to prevent the growth of maize seedling, but also to prevent late does not take off the fat, to ensure the normal post-maize fertility. According to the ground force, the target output, with high-quality farmhouse fertilizer 30000 ~ 37500 kg / hm2, urea 225kg / hm2, superphosphate 1200kg / hm2 and diammonium 75kg / hm2, Into the narrow line within the ridge. (2) ridge coating. The size of each ridge two-lane, double-ridge total width of 110cm, first in the ground to draw a ground line, along the border line 35cm row sidewalk