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单位面积内,小麦播种面积占总土地面积的百分比,或播幅占行距的百分比,称麦田土地利用率。在一定播种量条件下(即播种量不变),土地利用率提高,单株小麦所占土地面积和空间相对增大,反之减小。一般来说,单株小麦所占土地面积相对大些,空间大些,对小麦生育有利。所以提高土地利用率,应属增产措施。但增产作用大小,显著不显著,受其它因素影响,有待进一步研究。我们在研究提高尿素利用率的同时,进行了与土地利用率关系试验,现把试验结果报告如下,供进一步研究参考。供试土壤为本所试验地,中壤土,中等肥力。试验设计:在土地利用率上分为:1、行距7.5寸,播幅1.9寸,土地利用率为25％,2、行距1尺,播幅5寸,土地利用率为50％,
Within a unit area, the percentage of sown area of wheat in the total land area, or the percentage of sowing width of row spacing, said the wheat land use efficiency. Under a certain amount of seeding conditions (that is, the same seeding rate), the land utilization rate increased, the area and space occupied by a single plant of wheat relatively increased, and conversely decreased. In general, the area occupied by a single plant of wheat is relatively larger and larger, which is beneficial to the growth of wheat. Therefore, to improve land utilization, should be an increase in production measures. However, the size of increasing yield was significantly not significant, affected by other factors, to be further studied. We study the use of urea to improve the same time, conducted a test of the relationship between land use, the test results are reported below, for further study and reference. The test soil for this test, medium loam, moderate fertility. Test Design: The land utilization rate is divided into: 1, line spacing 7.5 inches, sowing 1.9 inches, land utilization rate of 25%, 2, spacing 1 foot, sowing 5 inches, land utilization rate of 50%