【作者】 李世瑶； 高昌珍；

【Author】 Li ShiYao1, Gao ChangZhen2 (1,2Engineering and Technology College of Shanxi Agricultural University, Taigu, Shanxi, 030801, China)

【机构】 山西农业大学工程技术学院；

【摘要】 在水资源日趋紧张、干旱灾害频繁发生的背景下,水资源的有效利用变得越来越重要。作者通过田间对比实验,得出抑制田间地表土壤裂缝能显著减少土壤水分蒸发。在此基础上,采用了灌水量分别为30,50,70(L/㎡),秸杆长度分别为5,10,15(cm),翻埋深度分别为5,10,15(cm),及单位面积使用量分别为0.3,0.5,0.8(kg/㎡)的四因素三水平正交试验设计方法,研究了四个影响因素与土壤裂缝的相关性。试验结果表明:四个因素的主次顺序为:翻埋深度—单位面积用量—灌水量—秸秆长度。裂缝最小的工艺参数组合为::翻埋深度15cm,单位面积用量0.8kg/㎡,灌水量30(L/㎡),秸秆长度10cm。更多还原

【Abstract】 A series problems have appeared that The growing tension in the water resources, frequent occurrence of drought .Improve WUE become more and more important. A field control experiment show that the suppression of field soil surface cracks can significantly reduce soil moisture evaporation. The author used for irrigation 30,50,70 (L/㎡), straw length, respectively 5,10,15 (cm), respectively, over the depth of buried 5,10,15 (cm), and the use of per unit area respectively 0.3,0.5,0.8 (kg/㎡) of the four factors and three-level orthogonal experimental design method to study the impact of the four factors and the relevance of soil cracks. The experimental results show that: the four primary and secondary factors in the following order: double buried depth - the amount per unit area - Irrigation - straw length. Cracks in the smallest combination of process parameters:: Buried depth of over 15cm, the amount per unit area 0.8 kg/㎡, water volume 30 (L/㎡), straw length of 10 cm.更多还原