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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.
Using the principles of system science and computer technology, the paper divides Sichuan into six rice-growing areas by means of a combination of quantitative analysis and qualitative analysis, a mathematical model and an empirical model. Among the five main rice-growing areas, Cultivation and research results and production practices based on the experience of different rice agronomic combination model field experiments to establish a basic representative of the main rice cropping multiple objective regression equations to resolve the main effects of the test cultivated factors and Interaction.For the purposes of high yield and high efficiency, through the optimization of computer simulation, two or three sets of combinations of optimized agronomic measures for different rice varieties in the five main rice regions were put forward respectively.After years of comparative experiments in multi-point plot and field, A total of 22 combinations of optimized agronomic measures with practical value were screened. Compared with the conventional cultivation techniques, the yield increase of the middle-season rice planting program was 11.9-17.9% in the basin and 6.6-16.5% in the basin, 16.9% and 3.9-7.1% respectively in the basin.The early and late rice varieties in the basin and the eastern part of the basin were 11.3-15.1% and 7.3-12.5% respectively.After the feedback correction, enrichment and enhancement, five rice Stable high-yield cultivation pattern of different rice area, the cumulative two-year demonstration area of 580.7657 hectares, a total of 261,050,200 kilograms of rice yield, achieved significantly increased yield and economic benefits.