冬小麦氮肥和磷肥总量控制试验研究  

Study on the Nitrogen and Phosphorus Fertilizer Total Amount Control Test of Winter Wheat

作　　者：俞守能[1] 孙治军[1] 王雁[1] 于立芝[1] 李淑清[1] 

机构地区：[1]中国农业大学烟台研究院,山东烟台264670

出　　处：《黑龙江农业科学》2013年第10期39-41,共3页Heilongjiang Agricultural Sciences

基　　金：烟台市科技发展计划资助项目(2007155)

摘　　要：为了优化冬小麦氮肥和磷肥的适宜用量,采用田间试验,研究了氮肥和磷肥施用量对冬小麦产量的影响。结果表明:氮肥的施用量与冬小麦产量的二次模拟函数为y=-0.6611x2+20.091x+234.85,相关系数为0.970 8,冬小麦产量达到最高时的氮肥施用量为228.0kg·hm-2。磷肥的施用量与冬小麦产量的二次模拟函数为y=-0.572 6x2+13.168x+340.4,相关系数为0.921 95,冬小麦产量达到最高时的磷肥施用量为172.5kg·hm-2。In order to optimize the suitable nitrogen and phosphorus fertilizer amount of winter wheat, the effects of nitrogen and phosphorus fertilizer on yield of winter wheat were studied by field experiment. The results showed that the quadratic analogue function between nitrogen fertilizer amount and yield of winter wheat was y=-0. 6611x^2＋ 20. 091x＋234.85, coefficient of association was 0. 970 8, the amount of nitrogen fertilizer was 228.0 kg＇hm2 when yield of winter wheat was the highest; the quadratic analogue function between phosL phorus fertilizer amount and yield of winter wheat was y=-0. 572 6x^2＋ 13. 168x＋340.4,coefficient of asso- ciation was 0. 921 95,and the amount of phosphorus fertilizer was 172.5 kg·hm^-2 when yield of winter wheat was the highest.

关 键 词：冬小麦 氮肥 磷肥 总量控制试验 

分 类 号：S512.11[农业科学—作物学]