WAN Su-mei,HU Shou-lin,ZHAI Yun-long.Studies on the Dynamic Change of Soil Water of Cotton With Drip Irrigation[J].Research of Soil and Water Conservation,2007,14(01):90-91.
膜下滴灌棉花土壤水分动态变化研究
- Title:
- Studies on the Dynamic Change of Soil Water of Cotton With Drip Irrigation
- Keywords:
- drip irrigation; cotton; soil water; soil type
- 分类号:
- S152.7;S562
- 摘要:
- 通过系统观察不同土壤类型棉花土壤水分动态变化规律，研究膜下滴灌棉花土壤水分的变化，以有效地提高棉花产量和水分利用效率。结果表明：膜下滴灌棉花土壤含水量呈现规律性的变化：在黏土地上，土壤含水量的变化趋势近似于抛物线，0~20cm土壤含水量最低，随土层深度增加，土壤含水量逐渐增加，至60~80cm达最大，随后又降低。而在沙土地，土壤含水量的变化趋势与黏土地相反。这种变化与土壤的理化、生物学特性以及棉花根系的生长发育有关。不同土壤类型膜下滴灌棉花产量、总耗水量及水分利用效率存在明显差异。
- Abstract:
- Through observation on the dynamic change rule of soil water of cotton in different soil type, the study on the change of soil water to cotton with drip irrigation to increase the yield and WUE of cotton is made. The result shows that the soil moisture content has regularity change, the soil moisture content change tendency in clay soil is nearly parabola. The soil moisture content in 0~20 cm is the lowest, increasing along with the soil layer depth, the soil moisture content increases gradually, the soil moisture content in 60~80 cm is the biggest, afterwards reduces. But in the sandy land, the change tendency of the soil moisture content is opposite to the clay land. This change is related with root, soil water and irrigation. There are distinct differences between yield, total water consumption and water use efficiency in different soil types.
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备注/Memo
收稿日期:2006-3-7;改回日期:。
基金项目:南疆棉田保护性耕作技术研究（TDZXSS05011）
作者简介:万素梅（1968- ），女，新疆人，副教授，硕士，主要从事作物栽培学与耕作学的教学与研究工作。