【摘要】 通过最优回归设计田间试验测得的参数,建立旱稻产量目标性状的氮磷两因素效应编码值回归方程,从挖掘方程所蕴藏的信息得出,早稻高产最大施肥量为N298.65kg/hm²、P₂O₅ 203.70kg/hm²,产投比8.82。经济最佳施肥量为N266.75kg/hm^、P₂O₅ 186.6kg/hm²,产投比9.76,并对单因素效应及互作效应作了剖析。更多还原

【Abstract】 Refer to the parameters that measured from the field experiment optimized for regression, the regression equation for coding value is found,which mirrors the goal-directed characters of dry rice’s output by the two factors;Nitrogen and Phosphor. Tapped, the latent information from the equation.it has shown that the most fertilizing value on the high yield of dry rice is Nitrogen 298. 65kg/hm2,P2O5 203. 70kg/hm2,the rate between output and input equals 8. 82. The optimum economic fertilizing value is Nitrogen 266. 75kg/hm2, P2O5 186. 6kg/hm2,the rate between output and input equals 9. 76. And there is an analysis to the domino effect of single factor and interplay.更多还原