摘要
基于田间定位试验,研究常规垄作(CT)、免耕(NT)与条耕(ST)种植方式下春玉米生长动态、干物质积累与分配以及水分利用变化。结果表明,CT处理在玉米生长前期具有明显优势,株高、叶片SPAD值与LAI在出苗后20 d显著高于其他处理;出苗后40 d玉米的农艺性状表现为ST、NT处理显著大于CT处理。生育期玉米干物质积累Logistic模拟显示,ST与NT处理下最大干物质积累速率较CT处理[7.52 g/(株·d)]显著提高21.28%、13.56%。最终,ST与NT处理玉米产量较CT处理提高13.30%、15.78%,水分利用效率相应提高10.18%、14.84%。综上,采取保护耕作条耕技术是提高吉林省雨养农业区玉米产量与水分利用效率的有效途径。
A comparative analysis was performed on the dynamics changes of maize plant growth,dry matter ac⁃cumulation(DMA)and distribution,and water use efficiency(WUE)under conventional tillage(CT),no-tillage(NT)and strip tillage(ST).The results showed that CT had obvious advantages during maize early growth stage.Plant height,leaf SPAD and LAI were notably higher than those of the other two treatments at 20 days after emergence.While the agronomic traits of maize plants under ST and NT after 40 days of emergence were higher than those of CT treatment.The biomass was simulated by Logistic showed DAM in ST and NT increased by 21.28%and 13.56%compared with CT.Grain yield in ST and NT was 13.30%and 15.78%higher than that of CT,and the WUE was in⁃creased by 10.18%and 14.84%,respectively.In conclusion,stip tillage is an effective strategies to enhance maize yield and WUE in rain-fed areas of Jilin Province.
作者
殷志国
杨浩
曹庆军
童淑媛
崔菁菁
孔凡丽
杨粉团
李刚
徐瑞
谷岩
YIN Zhi-guo;YANG Hao;CAO Qing-jun;TONG Shu-yuan;CUI Jing-jing;KONG Fan-li;YANG Fen-tuan;LI Gang;XU Rui;GU Yan(College of Agronomy,Jilin Agricultural University,Changchun 130118;Jilin Academy of Agricultural Sciences(Northeast Agricultural Research Center of China)/Key Laboratory of Northeast Crop Physiology Ecology and Cultivation,Ministry of Agriculture and Rural Affairs of the People's Republic of China,Changchun 130062;Heilongjiang Agricultural Economy Vocational College,Mudanjiang 157041;Comprehensive Service Center of Jubaoshan Town,Changling 131500,China)
出处
《玉米科学》
北大核心
2025年第8期91-99,共9页
Journal of Maize Sciences
基金
吉林省科技发展计划重点研发项目(20230202041NC)
国家重点研发计划课题(2023YFD1500302)。
