摘要
采用三因素五水平通用旋转组合设计,对影响茉莉花产量的3个主要因素,即N(X1),P(X2),K(X3)进行大田试验,建立产量与N、P、K3因子的肥料试验模型,并采用降维法对所建立的数学模型进行分析,确定其最佳施肥量。试验结果表明,茉莉花的产量从整体上来看与N成负相关,与P、K成正相关,作用的大小顺序为K>P>N。最佳施肥量为氮肥(N)132 4~197 6kg/hm2,磷肥(P2O5)166 6~197 4kg/hm2,钾肥(K2O)126 8~155 3kg/hm2。
By using the quadratic rotational combination besign in purple paddy field, studies were done on the effect of three factors (N, P, K). N, P, K fertilizer was a major factor which affected the yield of jasmine. The model of fertilizer effect was established by reducing dimensional analysis. The results indicate that: the yield of jasmine has a negative correlation with supply of nitrate and a positive correlation with supply of P, K from overall. The order of N, P, K influence on the yield of jasmine is K>P>N. The optimal combination of N, P, K is 1324~1976?kg/hm2 N, 1666~1974 ?kg/hm2 P2O5, 1268~1974?kg/hm2 K2O.
出处
《四川农业大学学报》
CSCD
2003年第2期147-151,共5页
Journal of Sichuan Agricultural University
基金
四川省科技厅"十五"攻关项目(02NG004-004)
四川省人事厅学术带头人培养基金。
关键词
茉莉花
平衡施肥
通用旋转组合设计
产量
jasmine
balance fertilization
quadratic rotational combination design
yield