河南农业科学2012，Vol.41Issue(4)：12-14,19,4.
灌溉模式对玉米生长发育及产量形成的影响
Effects on Growth and Yield Formation of Maize under Different Irrigation Techniques
摘要
Abstract
For the purpose of exploring difference of growth and yield of maize under different irri-gation techniques,in the same cases of rainfall and soil properties,the dynamic plant growth period, plant traits and yield formation under mulch drip irrigation (MDI), plastic mulching by flood irri-gation (MFI), sprinkler irrigation (SI) and non-irrigation were analyzed. The results showed that MDI speeded up the growth process of maize,and made maturity stage 10-11 d earlier than SI and non-irrigation. MDI effectively promoted plant height, which increased by 6. 7% and 18. 5% compared to SI and non-irrigation,respectively. MDI also enhanced the leaf growth speed,and in-creased the leaf area and the root quantity. The mean leaf area of various times increased by 17. 8% and 21. 5%, respectively,compared to SI and non-irrigation, while the mean values of root layers and root number increased by 1. 7 and 13. 0 compared to non-irrigation. Besides,MDI was conductive to ear formation and grain seed filling, and could increase the number of grains per spike and grain weight. The spike grain weight increased over that of SI and non-irrigation by 15. 5% and 73. 3%, respectively. MDI was characterized by saving of irrigational water and preservation of soil moisture to promote maize premature and output-increasing.关键词
春玉米/灌水技术/生育期/植株性状/产量Key words
spring maizej irrigation techniques/ growth period/ plant traits/ yield分类
农业科技引用本文复制引用
刘战东,肖俊夫,郎景波,李铁男..灌溉模式对玉米生长发育及产量形成的影响[J].河南农业科学,2012,41(4):12-14,19,4.基金项目
国家现代玉米产业技术体系建设专项(nycytx-02) （nycytx-02）
