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.
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)
关键词
菊芋
山旱地
平衡施肥
Helionthus tuborosus L
Arid land
Balanced fertilization
