福建农业学报2012，Vol.27Issue(2)：130-134,5.
杂交早稻金优2155高产栽培技术研究
Cultivation of High Yield Early-mature Hybrid Rice, Jinyou 2155
摘要
Abstract
A study was conducted to optimize the cultivation of the high-yield, early-mature hybrid rice, Jinyou 2155, based on three factors: planting density (X1), quantity of nitrogen (X2) and leaf age at transplantation (X3). The regression models for the three factors affecting the rice yield were established. The experimental results reveal that X2 and X3 exerted significant influences on the yield, and that there was a significant positive correlation between Xi and X3, as well as a significant negative correlation between Xzand X3. The overall effect on yield was found to be in the order of X3>X2>X1. After a simulated screening and optimization by computer, 4. 3 - 5. 2 leaves for transplanting at the density of 196 100 - 261 300 hills per · Hm2 with a nitrogen application of 140. 1 -182. 6 kg · hm"2 was recommended for the cultivation. The experimental results of the combined application of N, P, K and organic fertilizers indicated that increased N, P and K could raise the yield to some extend, while the increased organic fertilization promoted the growth by increasing effective panicles on the plant. On the other hand, the chemical nitrogen fertilization ought to be limited to avoid a negative effect on yield.关键词
早稻/金优2155/最优设计/效应分析/模拟选优/肥料配施Key words
Early-mature rice/ Jinyou 2155/ optimization/ effective analysis/ simulation/ combined fertilization分类
农业科技引用本文复制引用
陈晓波,饶鸣钿..杂交早稻金优2155高产栽培技术研究[J].福建农业学报,2012,27(2):130-134,5.基金项目
福建省科技计划重大专项(2004NZ01-4) （2004NZ01-4）
