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1 整地施基肥玉米适应性较广。一般对土壤要求pH值在6.5～7之间,有机质含量在1.5%～2%之间,土层深厚,结构疏松,总孔隙度50%～55%,保肥供水,容重在1.1～1.4g/m~3,土壤空气容量30%左右,全氮含量0.03%,速效磷60×10~(-6)以上为宜。春播必须先施基肥,施优质农家腐熟人畜肥5 000kg/667m~2,复合肥50kg/667m~2,过磷酸钙30kg/667m~2,撒后进行耕翻,一般深耕在25～30cm,耙平开沟做到三沟配套,夏玉米可灭茬施肥、抢墒、耕耙。
1 base fertilizer corn more adaptable. The general requirements of soil pH value between 6.5 to 7, organic matter content of 1.5% to 2%, deep soil, loose structure, the total porosity of 50% to 55%, fertilizer and water supply, bulk density of 1.1 ~ 1.4g / m ~ 3, soil air capacity is about 30%, total nitrogen content is 0.03%, available phosphorus 60 × 10 ~ (-6) or more is appropriate. Spring sowing must first base fertilizer, fertilizers of high quality farm manure fertilizer 5 000kg / 667m ~ 2, compound fertilizer 50kg / 667m ~ 2, superphosphate 30kg / 667m ~ 2, sprinkle after plowing, the general deep plowing at 25 ~ 30cm, rake Open trench ditch to do three matching, summer corn stubble fertilization, grab moisture, harrow.