基于灰色关联法评价覆膜方式对旱地谷子生长特性及产量的影响研究

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中图分类号：S512 文献标识码：A 文章编号：0488-5368（2025）07-0008-07

Effects of Mulching Methods on Growth Characteristics and Yield of Foxtail Millet in Dryland Areas Based on Grey Relational Analysis Method

WANG Zhihao 1，2 ，LONG Jiawen1，²， YANG Shuangshuang²，ZHOU Tianyou²，LIU Qinhui² WANG Xiaolin 2，3 ，ZHANG Xiong23，J Xiaoling2，3 （1.Xinhe County Rural Revitalisation serviceCentre，Xinhe，Xinjiang 8421oo，China; 2.CollegeofLife Sciences，YulinUniversity，Yulin，Shaanxi719ooO，China； 3.Shaanxi Provincial EngineeringandTechnology Research Center for Crop Water-Saving intheAridAreasof NorthernShaanxi，Yulin，Shaanxi719OoO，China）

Abstract： To explore the effects of diferent mulching methods on the growth characteristics and yield of foxtail millet in dryland areas of the Loess Plateau，this study evaluated six treatments ： biodegradable film mulching （M1），water -permeable film mulching （M2），black plastic film mulching （M3），white plastic film mulching （M4），ridge-furrow plastic film mulching（M5），and bare land cultivation（CK）.The effcts on the soil hydrothermal environment，chlorophyll content，plant height，aboveground biomass accumulation，and yield were analyzed，and a comprehensive evaluation was conducted using the grey relational analysis method.The results showed that （1）M4 and M5 treatments significantly increased soil moisture by 12.0%～23.8% and soil temperature by 1.0%～23.8% （ p<0.05 ）at both the jointing and maturity stages.（2）M5 significantly enhanced plant height by 12.4%～34.9% ，chlorophyll content by 8.3%～11.7% ，aboveground biomass accumulation by 25.7%～241.6% ，and thousand -kernel weight by 118.4% （ ）throughout the growth period.（3） Compared to CK，M4 and M5increased grain yield by 77.7% and 121.0% ，respectively.（4）The comprehensive grey relational grades for treatments were：CK（0.57），M1（0.74），M2（0.67），M3（0.61），M4 （0.75），and M5（O.88）.Overall，all mulching methods effectively improve foxtail millet growth and yield in dryland conditions，with the performance ranking as follows： M5>M4>M1>M2>M3 ：

KeyWords：Mulching method；Dryland foxtail millet；Yield；LoessPlateau region

干旱和半干旱地区占世界陆地面积的近40% ，覆盖50多个国家或地区，耕地面积达到了14亿 hm2 ，其中 85%～90% 用于旱地耕作[1，2]。（剩余9350字）