Research on the most suitable irrigation method for alfalfa based on entropy weight-TOPSIS

• Published in: Journal of agricultural resources and environment Vol. 42; no. 1; p. 249
• Main Authors: Baiheti, Meihemuti, Ding, Feng, Li, Yan, Dang Longxin
• Format: Journal Article
• Language: Chinese
• Published: Tianjin Journal of Agricultural Resources and Environment (JARE) 01.01.2025
• Subjects: Agricultural production; Alfalfa; Crop yield; Crops; Drip irrigation; Efficiency; Entropy; Irrigation; Irrigation efficiency; Irrigation water; Nutritive value; Soil moisture; Water conservation; Water use; Water use efficiency; Weight

为探求不同灌溉方式对苜蓿的影响并优选最适宜该地区的灌溉方式，本研究以紫花苜蓿为研究对象，通过小区对比试验，探讨新疆乌昌地区3种主要灌溉方式（W1浅埋式滴灌、W2地表滴灌和W3平移式喷灌）对苜蓿生长、产量和水分利用效率的影响，并采用熵权-TOPSIS综合评价法，优选适宜于该地区苜蓿生产的节水灌溉方式。结果表明，W1处理能够有效提高土壤水分含量，在苜蓿生长期内0~60 cm土壤含水量都显著高于W2和W3处理（P<0.05）。W1处理苜蓿三茬总产量最高，为14 379.4 kg·hm-2，较W2和W3三茬平均灌溉水利用效率分别提高了11.76%、46.15%。W1处理和W2处理三茬相对饲喂价值...