摘要
应用系统科学原理和电子计算机技术,采用定量分析和定性分析相结合,数学模型和经验模型相结合的方法,将四川划分为六个稻作区,在其中五个主要稻作区内,在原有栽培研究成果和生产实践经验基础上,进行了不同稻类农艺措施组合模型田间试验,建立了基本可以代表各主要稻作区的多目标回归方程组,解析了各参试栽培因子的主效应和交互作用.以高产、高效为目的,通过电子计算机摸拟寻优,对五个主要稻区不同稻类分别提出了2～3套优化农艺措施组合方案.经多年多点小区和大田对比试验,共筛选出具有生产实用价值的优化农艺措施组合方案22套,同一般现行栽培技术比较,一季中稻优选方案的增产率,盆东为11.9～17.9%;盆周6.6～16.5%;盆南3.3～16.9%;盆西3.9—7.1%.盆南、盆东的双季早、晚稻分别为11.3～15.1%和7.3～12.5%.经过反馈修正、充实和提高,分别建立了五个稻作区不同稻类的高产稳产栽培模式,两年累计示范面积达580.7657万亩,累计增产稻谷26105.02万公斤,取得明显的增产效果和经济效益.
By means of system approach and computer technique and combining quantitative with qualitative analysis and mathematical model with experience model, Sichuan rice growing area was divided into six ecotope regions.On 5 ecotope regions of which, the field experiment of combining model of agronomic practices were conducted in different rice ecospecies in 1986-1989. Additionally, a set of multipurpose regression equations were established in 5 ecotope regions, the main and cross effect of each were analyzed. In order to high-yielding and high benefit, 2-3 sets optimization combine schemes of agronomic Pactices for various ecotpic rice in these rice regions were proposed separately by the computer simulation optimization , 22 sets optimum schemes were selected which were practical in production and verified through multipoint Plot and field contrative experiment. As compared with Present cultivating techniques, the rate of yield increase of new system for single cropping middle rice was 11.9-17.9% in the eastern Basin, 6.6-16.5% in Peripheral Basin, 3.3-16.9% in southern Basin, 6.6-11.0% in central Basin, 3.9-7.1% in western Basin, the first and second season rice in southern and eastern Basin double cropping rice region was 11.3-15.1% and 7.3-12.5% respectively. Through correction, complement and improve to the feeding back results of experiments again and again, a set of cultivating system of rice for high and stable yielding in 5 various rice regions had been established, the demonstrational area for two years added up to 387 177 ha and increased rice by 130 525 tons.
出处
《西南农业学报》
CSCD
1991年第1期6-18,共13页
Southwest China Journal of Agricultural Sciences
关键词
水稻
栽培模式
生态区划
培产效应
Rice, Model culaivated system, Zoning of ecotope region, Yield increase effect,High and stable yielding
