内蒙古民族大学学报（自然科学版）2026，Vol.41Issue(3)：13-19,7.DOI:10.14045/j.cnki.15-1220.2026.03.002
浅埋滴灌下种植密度与灌溉定额对玉米物质生产的影响
Effects of Planting Density and Irrigation Quotas on Maize Material Production under Shallow Buried Drip Irrigation
摘要
Abstract
To investigate the effects of planting density and irrigation quotas on maize material production under shallow buried drip irrigation,a field positioning experiment with split-plot design was employed.Planting density was the primary treatment,with three levels set at 75 000 plants/hm2(D1),90 000 plants/hm2(D2),and 105 000 plants/hm2(D3);Irrigation quotas served as secondary treatments,with three levels:1 800 m³/hm2(W1),2 250 m³/hm2(W2),and 2 700 m³/hm2(W3).The results showed that leaf area index,total dry matter accumulation,transport volume,and trans-port rate increased with rising planting density and irrigation quota.Total dry matter accumulation during the silking pe-riods D1 and D3 showed that W3 was 6.18%and 9.87%higher than W1(P＜0.05),respectively,with significant dif-ferences observed.At the maturity period,W3 was significantly higher than W1(P＜0.05)across different planting densities.Under treatment D2,the total dry matter transport at W3 was significantly higher than at W1(P＜0.05);un-der treatment D3,W3 was significantly higher than both W1 and W2(P＜0.05).The leaf dry matter transport rate un-der treatment D2 was significantly higher at W3 than at W1(P＜0.05).Increasing planting density enhanced maize grain yield and irrigation water use efficiency.Under treatment D1 and D3,grain yields for W2 and W3 were signifi-cantly higher than those for W1(P＜0.05);Under treatment D2,W3 was significantly higher than W1(P＜0.05),but there was no significant difference compared to W2.Irrigation water use efficiency among irrigation quotas exhibited a significant difference,with W1＞W2＞W3(P＜0.05).The combination of 105 000 plants/hm2 and 2 250 m³/hm2 ir-rigation quota could achieve high grain yields and efficient irrigation water use,making it a suitable management prac-tice for high-yield,high-efficiency maize cultivation on the Xiliaohe Plain.关键词
玉米/灌溉定额/种植密度/物质积累/灌溉水利用效率Key words
maize/irrigation quota/planting density/material accumulation/irrigation water use efficiency分类
农业科技引用本文复制引用
徐晓,杨恒山,张玉芹,葛选良,刘晶,张瑞富..浅埋滴灌下种植密度与灌溉定额对玉米物质生产的影响[J].内蒙古民族大学学报（自然科学版）,2026,41(3):13-19,7.基金项目
国家自然科学基金项目(32160509,32460536) （32160509,32460536）
国家重点研发计划子课题(2023YFD2301805) （2023YFD2301805）
