华粳5号机插高产栽培技术研究  

Study on High Yield Cultivation Technology of Rice(Orazy sativa L.) Huajing No. 5 under Mechanical Transplanting

作　　者：王俊仁[1] 吕宏飞[1] 张安存[1] 吕以忠[1] 陈英[1] 陈素芳[1] 

机构地区：[1]江苏省大华种业集团有限公司,江苏南京210002

出　　处：《安徽农业科学》2013年第17期7445-7447,共3页Journal of Anhui Agricultural Sciences

摘　　要：[目的]探求华粳5号高产栽培的技术途径。[方法]开展华粳5号不同密度机插试验、高产示范方研究。密度试验株行距分别为30.0 cm×15.0 cm、30.0 cm×13.3 cm、25.0 cm×12.5 cm、25.0 cm×12.0 cm、20.0 cm×13.5 cm。[结果]华粳5号分蘖性中等,机插密度以25.0 cm×12.0 cm较为适宜;基蘖肥与穗肥氮施用比例以7∶3最佳,促早发,中期控群体,后期攻大穗,容易获得高产。[结论]该研究可为华粳5号的大面积推广应用提供理论和实践依据。[ Objective ] The aim was to find out the high yield cultivation way of Huajing No. 5. [ Method ] The different sowing density and me- chanical transplanting test and high yield demonstration farms study were conducted on. And the spacing in the rows and between rows was 30.0 cm x 15.0 cm, 30.0 cmx 13.3 cm, 25.0 cm x 12.5 cm, 25.0 cm x 12.0 cm, 20.0 cm x 13.5 cm,rcsp.. [ Result ] Huajing No. 5 has medium tillering ability, and the more suitable mechanical transplanting spacing in the rows and between rows is 25.0 cmx 12.0 cm; the best nitrogen fertilizer application ratio of base-tiller fertilizer and earing fertilizer is 7： 3, which promotes early germination, controls rice groups in the middle stage of growth, attacks big spike in the last stage of growth, so obtains high yield easily. [ Conclusion ] The study provides a theoretical and practical basis for promotion and utilization of Huajing No. 5 in a large scale.

关 键 词：华粳5号 机插密度 高产示范 

分 类 号：S511.22[农业科学—作物学]