【摘要】 采用二次饱和D-最优设计法研究了N、P化肥施用量对天鹰椒产量及其相关性状的影响结果表明,P肥增加椒数的作用大于N肥;N、P肥对单株椒重的作用基本相同;N肥对株高的增高作用大于P肥;随P肥施用量的增加而分枝下降,且随N肥施用量的增加而分枝增多,随N、P肥施用量的增加,产量均呈抛物线趋势,先增高后下降;根据肥料效应方程求出干椒4767kg/hm²的目标产量,其适宜施用量为N281.11kg/hm²、P₂O₅82.11kg/hm²。更多还原

【Abstract】 The effects of nitrogen and phosphorus application on the yield of cluster redpepper and its other relevant characteristics have been studied through a two-year test, using saturated D-optimum design. The results show that phosphorus has larger effect on increasing the pepper numbers of a single plant than nitrogen; N and P have the similar effect on the weight of a single pepper; N has larger effect on increasing the plant height than P; the shoot number decreases with the increase of P application and increases with the increase of N application; the yield responses show a parabola model to either N or P application According to the fertilizer response equation obtained, the suitable N and P2O, applied is 281. 1 lkg/hm2 and 82.11kg/hm2 respectively to get the target yield of 4767 kg/hm2 .更多还原