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1.试验目的应用优良品种和增加种植密度是获得玉米高产的两个重要措施,为了进一步发挥品种和栽培技术的增产优势,为玉米创建和旱作农业提供科学依据,特设此试验。2试验设计试验设在陕西省宜川县英旺乡茹萍村杨玉平的责任田里,参试品种为郑单958、先玉335、陕单609、榆单9号、陕单618、大丰30六个品种,小区排列采用裂区设
1. Purpose of the experiment Applying fine varieties and increasing planting density are two important measures to obtain high yield of corn. In order to further give play to the yield advantage of varieties and cultivation techniques, this experiment is specially provided for the scientific basis for establishing corn and dry farming. 2 Test Design The experiment was conducted in Yang Yuping’s responsibility field of Ruping Village, Yingwang Township, Yichuan County, Shaanxi Province. The tested varieties were Zhengdan 958, Xiangyu 335, Shandan 609, Yudan 9, Shandan 618, Dafeng 30 six varieties, plot arranged by split zone