川东丘陵区杂交中稻高产栽培优化模型研究  

A STUDY OPTIMAL MODELS OF HIGH YIELD CULTIVATION TECHNIQUES FOR MID-SEASON HYBRID RICE IN THE HILLY REGIONS OF EASTERN SICHUAN

作　　者：胡声荣[1] 王光明[1] 石孝均 郑钦玉 朱自均 

机构地区：[1]四川农业大学农学系,重庆630716

出　　处：《西南农业大学学报（自然科学版）》1993年第6期471-476,共6页Journal of Southwest Agricultural University

摘　　要：1991～1992年,在四川省梁平县天竺乡采用四因素五水平正交旋转组合设计方法,研究了密度及氮、磷、钾施用量对杂交稻产量的综合效益,并求得高产、低耗的最优综合农艺措施,建立了3套不同产量水平的优化模型方案。A方案:产量8250～8700Kg/ha的农艺措施为:27.89～29.23万窝/ha、施N111.87～123.19kg/ha、P_2O_5 39.41～46.39kg/ha、K_2O 55.09～64.69kg/ha;B:方案:产量8700～9000kg/ha的农艺措施为:24.57～27.50万窝/ha、施N137.61～155.69kg/ha、P_2O_5 36.07～52.32kg/ha、K_2O 98.86～108.99Kg/ha;C方案:产量高于9000kg/ha农艺措施为:22.74～25.63万窝/ha、施N 164.44～178.69Kg/ha、P_2O_5 41.22～58.91Kg/ha、K_2O 111.09～118.44Kg/ha。In 1991—92, in Liangping county of Sichuan province, the method of orthogonal rotation design with four factors and five levels was used to investigate the comprehensive effects of plant density and N, P and K rates on the yield of hybrid rice. Optimized agronomic measures for high yield and low input were recommended and three optimal models were established for the target yield of 8, 250—8,700, 8,700—9,000 and above 9,000 kg grain/ha.

关 键 词：杂交稻 中稻 高产 栽培 

分 类 号：S511.320.4[农业科学—作物学]