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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,采用不同播种期单因素随机区组设计,设5个播种行距,3次重复,5个处理共15个小区,
1 Test Materials and Methods 1.1 Test Site Selection The test is located in the natural village of Zhujiazhai Village, Jixian administrative village, Jixian Township, about 1,250 m above sea level with an annual rainfall of 500 to 570 mm and an annual average temperature of 10.1 ° C. The test plot is flat, Fertility medium, uniform, the former crop of corn. 1.2 Experimental Design The experimental varieties were large-scale popularization and application of large-scale winter wheat variety Longyu 4 in Huanshui. The randomized single-factor block design with different sowing dates was used. Five sowing intervals, three repetitions and five treatments were 15 Community,