论文部分内容阅读
本项研究于1985～1989年在河南省6个试点进行。试验采用多因素旋转回归设计,根据全省各试点测得数据,经统计建模及模拟仿真,决选出棉花优质高产综合栽培措施优化方案,找出了高产棉田不同生育期的最佳结构指标、最佳产量结构及最佳成铃时、空分布。两年多点联合反馈试验,最高每亩皮棉产量97.68kg,增产幅度9.4～26.9％;经三年的生产示范,产生直接经济效益1.092亿元,社会效益2.6亿元。
This study was conducted in six pilot projects in Henan Province from 1985 to 1989. Based on the measured data from all the pilot projects in the whole province, the optimization program of high-yielding and comprehensive cultivation measures for cotton was selected through statistical modeling and simulation, and the best structural indexes at different growth stages of high-yielding cotton field were found out , The best yield structure and the best bells, empty distribution. After more than two years of joint feedback tests, the maximum yield of lint cotton per mu reached 97.68kg, an increase of 9.4% to 26.9%. After three years of production demonstration, the direct economic benefits were 109.2 million yuan and the social benefits were 260 million yuan.