摘要
用穗重型杂交水稻渝优11号为载体,研究探明了重庆地区强化栽培模式下本田底肥氮占总氮比例、栽插密度、施肥水平、栽插叶龄等栽培措施对稻谷单产及经济性状的影响;筛选出了各因子水平的优化组合A2B3C1D2,初步提出了重庆地区强化栽培的技术规程:纯氮的70%作底肥、每hm2栽12万窝、每hm2施纯N 105 kg、叶龄为3.5叶时移栽的因子组合可以获得高产。
In a field experiment, Yu You 11, a heavy -spike -type hybrid of rice, was grown with different combinations of treatments of planting density, N application rate, age of the seedlings at transplanting and the proportion of N used as basal fertilizer in the total N applied. The combination of A2B3C1D2 was screened as the optimum combination. A tentative technical standard of SRI was proposed for Chongqing Region： N rate, N 105 kg/hm^2; 70% of the N as basal fertilization; planting density, 120 000 hills/hm^2 ; and leaf age at transplanting, 3.5 - leaf stage.
出处
《西南农业大学学报（自然科学版）》
CSCD
北大核心
2005年第6期804-808,共5页
Journal of Southwest Agricultural University
基金
重庆市良种创新工程资源资助项目(8440)
关键词
杂交水稻
强化栽培
配套技术
增产效应
hybrid rice
SRI
comprehensive techniques
yield- increasing effect
