氮磷钾不同配比对朝天椒产量的影响  

The Effect of N,P and K Proportions on the Yield of Chili Peppers

作　　者：韦伟[1] 魏成熙[1] 陈海燕 郭萍[1] 张文显 

机构地区：[1]贵州大学农学院,贵州贵阳550025 [2]贵州省土壤肥料工作总站,贵州贵阳550001 [3]贵州省绥阳县土肥站,贵州绥阳563300

出　　处：《山地农业生物学报》2010年第5期392-396,427,共6页Journal of Mountain Agriculture and Biology

基　　金：贵州省科技厅重大项目[黔科合重大专项字(2007)6008]

摘　　要：采用3因素4水平二次回归最优设计,通过田间试验,研究氮、磷、钾施用量与绥阳朝天椒产量的二次回归函数效应,建立相应数学模型。结果表明:通过氮、磷、钾3因子对产能量指标的二次回归函数模型分析,氮、磷、钾的最佳经济效益施用量分别为7.62、6.00、2.79 kg/667 m2,肥料利用率分别为39.75%、10.32%、23.29%。The optimal design of three factors,four of quadratic regression function was employed to investigated the effect of N,P2O5,K2O on the yield of Chili peppers in the present work.The results showed that through the three factor on the production of energy index of the quadratic regression function model,the best economic benefits of N,P,K fertilizer was 7.62kg/667m^2,6.00kg/667m^2,and 2.79kg/667m^2.The utilization efficiencies of N,P,and K fertilizers were 39.75%,10.32% and 23.29%,respectively.

关 键 词：二次函数 产量 氮 磷 钾 朝天椒 

分 类 号：S641.3[农业科学—蔬菜学]