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近几年,河南省济源市农业技术推广中心结合农业部玉米高产创建项目的实施,从水肥管理、病虫害防治、收获时期等技术层面进行摸索探讨,最终研究组装了一套较为完整的夏玉米亩产800 kg栽培技术。现将该栽培技术总结介绍如下。1土壤基础土层深度100 cm以上,耕作层25 cm以上,总孔隙度50%~55%,耕层容重1.2~1.3 g/cm3;土壤耕层20 cm以内,有机质含量≥15 g/kg,全氮(N)含量≥1.5%,有效磷(P2O5)含量≥25 mg/kg,速效钾(K2O)含量≥170 mg/kg,土壤pH 7.4~8.2。小麦播种前进行翻耕,深度达30 cm以上。
In recent years, Jiyuan City, Henan Province, Agricultural Technology Extension Center with the Ministry of Agriculture to create high-yield corn project implementation, from water and fertilizer management, pest control, harvest time and other technical aspects to explore and discuss the final study assembled a set of more complete summer corn Production 800 kg cultivation techniques. The cultivation techniques are summarized below. 1 The depth of soil foundation soil layer is more than 100 cm, the tillage layer is more than 25 cm, the total porosity is 50% -55%, the bulk density is 1.2-1.3 g / cm3; Total N content ≥1.5%, P2O5 ≥25 mg / kg, K2O ≥170 mg / kg and soil pH 7.4 ~ 8.2. Tillage before plowing, depth of more than 30 cm.