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以青刈黑麦品种冬牧７０黑麦为材料，以利用棉花冬闲田为目的，在田间条件下研究了不同灌水处理对青刈黑麦株高、叶面积指数、干物质积累以及产量的影响。结果表明在１０月中、下旬至翌年４月下旬青刈黑麦生长期间，土壤主要耗水层位在０～１００ｃｍ土体。一般年份在足墒播种（７５０ｍ３／ｈｍ２）条件下，翌年４月１日前后青刈黑麦拔节期浇水一次（７５０ｍ３／ｈｍ２），就能满足青刈黑麦生长发育对水分的需求；在雨水偏多土壤水分含量较多的年份，可以不浇水或少浇水，充分利用土壤中的水分以提高水分利用率。
The objective of this study was to study the effects of different irrigation treatments on the plant height, leaf area index, dry matter accumulation and yield of mulched rye, using the wintergrowing ryegrass variety Ryegrass 70 rye as material. The results showed that during the growing season of mid-late October to late April in the following year, the main soil water layer was in 0 ~ 100cm soil layer. In general years, the requirement of water for the growth and development of green mulching rye can be satisfied under the conditions of sufficient moisture seeding (750m3 / hm2) and watering once (750m3 / hm2) at the jointing stage of the blue mulching rye before and after April 1 of the following year; More years of soil moisture content more, you can not watering or less watering, make full use of soil moisture to improve water use efficiency.