寒旱农业科学2025，Vol.4Issue(3)：244-249,6.DOI:10.3969/j.issn.2097-2172.2025.03.008
旱作区立式深旋耕作下马铃薯产量及水分利用效率对垄沟比变化的响应
Responses of Water Utilization and Efficiency Yield of Potatoes to Ridge-furrow RatioVariation under Vertically Rotary Sub-soiling Tillage in Dryland Areas
摘要
Abstract
Optimizing the ridge-furrow ratio is an effective strategy to exploit the potential of light,temperature,water,and air resources in dryland crops and improve productivity.This study investigated the effects of ridge-furrow ratio variation within the integrated technology of mini-ditch planting on ridge combined with plastic mulching and vertically rotary sub-soiling on potato water utilization,marketability,and yield stability,providing theoretical support for future standardized planting parameters and optimal spatial configuration in semi-arid dryland potato cultivation.From 2021 to 2023,a comparative experiment was conducted in Anding District,Dingxi City employing full plastic film coverage on ridge with mini-ditch and vertically rotary sub-soiling technology,with 3 ridge-furrow ratio treatments(50 cm∶50 cm,60 cm∶40 cm,70 cm∶30 cm).Results indicated that the impact of ridge-furrow ratio variation on water use efficiency and potato yield was dependent on annual precipitation.In years with higher precipitation,increasing the ridge-furrow ratio enhanced potato yield,whereas in drier years,a higher ridge-furrow ratio led to a yield reduction.Based on tuber yield,commodity yield,water use efficiency(WUE),and yield stability,the 60 cm∶40 cm ridge-furrow ratio was identified as the optimal specification for the combined planting model using mini-ditch on ridge and vertically rotary sub-soiling tillage technology with full film mulching.However,in terms of commodity rate and commodity yield alone,the 70 cm:30 cm ridge-furrow ratio effectively improved potato commodity rate and commodity yield.It is recommended to moderately increase the ridge-furrow ratio in years with higher precipitation to balance improvements in potato yield and commodity rate.关键词
马铃薯/立式深旋耕作/垄沟比/产量/水分利用效率/产量稳定性Key words
Potato/Vertically rotary sub-soiling/Ridge-furrow ratio/Yield/Water use efficiency/Yield stability分类
农业科学引用本文复制引用
尹嘉德,侯慧芝,方彦杰,马明生,柳燕兰,雷康宁..旱作区立式深旋耕作下马铃薯产量及水分利用效率对垄沟比变化的响应[J].寒旱农业科学,2025,4(3):244-249,6.基金项目
国家重点研发计划(2021YFD1900700) （2021YFD1900700）
甘肃省科技计划项目(22JR5RA763、23JRRA1340) （22JR5RA763、23JRRA1340）
甘肃省青年科技基金(24JRRA31). （24JRRA31）
