摘要
试验结果表明,采用稀播培育壮秧,平稳施肥的方法栽培沈农91,能提早抽穗和成熟,可获得较高的产量及经济效益,沈农91的高产栽培途径是穗粒兼顾。叶面积指数前期上升快而不过,中期稳定时间长,后期下降慢,这是取得高产的关键,沈农91最适叶面积指数为5.5～6.0。
The experimental results showed that the heading and ripening dates of the plants could be earlier. and the higher grain yield and better economic effect could be obtained if the rice variety 'Shennong 91' was sown thinly to cultivate health seedlings and fertilized smoothly after transplanting. The high yield cultivation pattern of Shen- nong 91 rice is the combination of the number of the grains per panicle and the number of the panicles per unit area. The key to get high yield is that the leaf area index should increase fast but not excessively in early growing stage, be steady in middle stage and decrease slowly in late stage. The optimum leaf area index of Shennong 91 plant popula- tion is 5.5～6.0.
出处
《沈阳农业大学学报》
CAS
CSCD
1993年第3期205-210,共6页
Journal of Shenyang Agricultural University
关键词
水稻
高产
栽培
rice
high yield
economic effect
optimum leaf area indax
