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1材料与方法 1.1试验地概况试验在曲阜市农业科技研发中心进行,土壤耕作层30cm,属潮褐土,耕层土壤质地为轻壤,平原井灌区,轮灌周期5~7d,前茬作物玉米。耕作层土壤营养含量:有机质12.5g/kg,全氮1.2g/kg,全磷0.10mg/kg,碱解氮99.8mg/kg,速效纯磷15.8mg/kg,速效钾125.8mg/kg。1.2试验设计行距:A:40.0cm;B:33.3cm。设11个处理,处理1:A双
1 Materials and methods 1.1 The experimental site The experiment was conducted in Qufu Agricultural Science and Technology R & D Center. Soil tillage layer was 30 cm, which was tide cinnamon soil. The soil texture of tillage layer was light soil. Plain well irrigation area, irrigation cycle 5-7 d, corn. Tillage layer soil nutrient content: organic matter 12.5g / kg, total nitrogen 1.2g / kg, total phosphorus 0.10mg / kg, 99.8mg / kg nitrogen, available phosphorus 15.8mg / kg, available potassium 125.8mg / kg. 1.2 Test design spacing: A: 40.0cm; B: 33.3cm. Set 11 processing, processing 1: A double