摘要
在杭州地区，连晚来交稻茬口三熟制油菜可以达到秋发的标准。其配套技术主要为：选择中迟熟甘蓝型良种；9月15～20日播种，6～7叶大壮苗移栽，10．5万株／hm2；氮磷钾阴肥采取5（底）：3（苗）：0（腊）：2的配施方法；多效吐化控有壮秧，初花期叶面肥防早衰前角；防治苗期蚜虫和后期菌核病等。与常规栽培相比，秋发油菜表现为全生育期长，冬前生长量足，封行早，抗寒能力强，单株有效角果数多，比常规栽培增产25．2％。
According to the climate condition of Hangzhou, rape in triple-rnature system could get the standard early acceleration in auturnn. The main cultural practices was as follow: (1) Choose mid-late rnaturity variety of B. napus; (2) Sowing stage was from 15 to 20on September, and transplanted when the seedling was 6~7 leaves, the most available density was 105000 plants/hm2. (3) The rate of N.P.K.B fertilizer applied was 5 (subsoil): 3(seedling): 2 (bolting); (4) Using MET to regulate the growth of seedling and foliage dressing in early flowering stage to prevent premature decay, prevent aphis in seedling stage and scleretium disease in late stage. Compared with the usual cultivation, the characteristics of the early acceleration rape had longer tatol growing period, enough growth before winter,earlier closing of crop, stronger cold resistance and more effective pods per plant, and the yield was higher by 25. 2% as well.
出处
《中国油料》
CSCD
北大核心
1997年第4期25-27,共3页
基金
杭州市科委项目
关键词
三熟制
油菜
秋发
栽培
生育特性
Triple-mature system
Rape
Early development
Characteristics
Cultural practices
