摘要
采用三因子二次通用旋转设计进行田间试验，研究了氮、磷、钾肥配施对甜脆豌豆产量的影响，建立了N、P、K三因素与甜脆豌豆产量的施肥模型。对模型解析发现，3个单因子对产量的影响表现为K2O〉P2O5〉N。施肥模型寻优结果表明：施N 134．0-209．9kg／hm^2、P2O5 74．7～129．96kg／hm^2、K2O 75．5-150．5kg／hm^2，氮、磷、钾之比为1：0．59：0．66时可使甜脆豌豆产量达到15．55t／hm^2以上。
The field experiment in the effects of the ration of N, P, K fertilizer on yield of sweet and crisp pea was conducted by 3 factors quadratic rotation design, and the optimal mathematic model of fertilization was constructed. The effects of tested factors on the yield revealed the following order： K2O 〉 P2O5 〉 N. Based on the fertilization model, in order to get high yield more than 15.55t/ hm^2, the optimum application rate of N, P2O5 and K2O should be 134.0 -209.9,74.7 -129.96 and 75.5 - 150.5kg/hm^2 respectively, and the application ratio of N, P2O5, K2O should be 1：0.59： 0.66.
出处
《江西农业学报》
CAS
2006年第6期95-97,共3页
Acta Agriculturae Jiangxi
关键词
甜脆豌豆
施肥
数学模型
产量
Sweet and crisp pea
Fertilization
Mathematic model
