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1.试验材料和方法1.1.试验地的选择该试验设在吉岘乡吉岘行政村朱家寨子自然村,海拔1 250m左右,年降水量500~570mm,年平均气温10.1℃,试验地块地势平坦,肥力中等、均匀,前茬作物为玉米。1.2试验设计试验品种为合水县目前大面积推广应用的冬小麦优良品种陇育4号,采用覆膜方式单因素随机区组设计,四种覆膜方式:全膜覆土穴播、全膜平铺(不覆土)穴播、膜侧沟播、不覆膜露地条播,共4个处理(见表1)。
1. Test Materials and Methods 1.1. Test Site Selection The test was conducted in the natural village of Zhujiazhai, an administrative village in Jixian County, at an altitude of about 1,250 m with an annual rainfall of 500 to 570 mm and an average annual temperature of 10.1 ° C. Flat, medium fertility, uniform, the former crop of corn. 1.2 Experimental Design The test varieties are widely used in large-scale popularization and application of winter wheat variety Longyu 4 in Huishui County. The single-factor randomized block design was used to cover the area. Four kinds of coating methods were: Not covered) hole sowing, film ditch sowing, mulching film exposed, a total of 4 treatment (see Table 1).