菊芋山旱地栽培氮磷钾元素配比及平衡施肥回归模型研究  

Studying on Proportion about Nitrogen and Phosphorus and Potassium and Regression Model of Balanced Fertilization for Cultivation of Helionthus tuborosus in Arid Land

作　　者：邵登魁[1,2] 钟启文[1,2] 

机构地区：[1]青海省农林科学院园艺所,青海西宁810016 [2]青海省蔬菜遗传与生理重点实验室,青海西宁810016

出　　处：《青海农林科技》2015年第4期1-4,24,共5页Science and Technology of Qinghai Agriculture and Forestry

基　　金：国家大宗蔬菜产业技术体系西宁综合试验站项目(CARS-25-G-49)

摘　　要：应用氮、磷、钾三因素"3414"试验设计,研究了氮、磷、钾肥用量和配比对山旱地上菊芋产量的影响,并获得了相应的回归模型,通过解析模型,得出了山旱地菊芋产量最高时的施肥量为:N,23.74kg/667m^2;P_2O_5,133.40kg/667m^2;K_2O,22.23kg/667m!2,理想的最高产量为7524.54kg/667m^2。The effects of the amount and proportioning of N, P and K on the yield of Helionthus tuborosus in mountainous region were studied by use of 3414 experiments design; the regression model was also obtained. The amount of fertilizers used to obtain the optimal production through analysis of model was 23.74kg/ 667m2 for N, 133.40kg/ 667m2 for P2 O5 and 22. 23kg/ 667m2 for K2 O, the ideal highest yield was 7524. 54kg/667m2.

关 键 词：菊芋 山旱地 平衡施肥 

分 类 号：S632.9[农业科学—蔬菜学]