黑龙江农业科学Issue(10)：39-41,3.
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
摘要
Abstract
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 .6611 x2 + 20 .091 x+234 .85 ,coefficient of association was 0 .970 8 ,the amount of nitrogen fertilizer was 228 .0 kg·hm-2 when yield of winter wheat was the highest ;the quadratic analogue function between phos-phorus fertilizer amount and yield of winter wheat was y= -0 .572 6x2 +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Key words
winter wheat/nitrogen fertilizer/phosphorus fertilizer/total amount control test分类
农业科技引用本文复制引用
俞守能,孙治军,王雁,于立芝,李淑清..冬小麦氮肥和磷肥总量控制试验研究[J].黑龙江农业科学,2013,(10):39-41,3.基金项目
烟台市科技发展计划资助项目 （）
