摘要
本文用二次正交旋转组合设计的方法,研究了密度、农家肥和N、P、K、的不同处理对马铃薯产量的影响,结果表明:参试因素的产量数学模型效应依次为农肥(X_2)>严度(X_1)>化肥(X_3);最优组合方案为秘度6600株/亩,农肥1800kg/亩,N、P、K、分别为4.05、2.10和4.05kg/亩;最优水平组合的产量达2600kg/亩,比对照增产33.26％,每亩增加产值145元,节约成本26元以上。
The effect of the various factor combinations of densities (X_1), farm manure (X_2) and fertilizers (X_3) containing N, P, K on tuber yield were studied by using a method of quatritic orthogonal rotation combination design. The result showed that effects of factors tested on the yield mathematical model were guite different. The effects of the tested factors were arranged orderly as farm manure(X_2)>density(X_1)>fertilizers(X_3), and the optimum combination was composed of 6500 plants/mu, 1800kg farm manure/mu and fertilizers N4.05kg, P2.10kg and K4.05kg per mu. The yield of optimum combination was 2600kg/mu, increased by 33.26％ in comparison with the experiment control, and its value of output per mu was raised by 145 yuan, but the cost of goods production per mu was reduced by 26 yuan or more.
出处
《四川农业大学学报》
CSCD
1991年第3期398-403,共6页
Journal of Sichuan Agricultural University
关键词
马铃薯
密度
栽培
农家肥料
IRISH POTATO
DENSITY
CILTIVATE
FARM MANURE
