高肥力棉田肥料效应初步研究  

Preliminary research on fertilizer effects in high fertile cotton field

作　　者：李俊杰 吕锦萍 文启凯[2] 李秀珍 金俊香[2] 饶晓娟[2] 王晓静[2] 

机构地区：[1]新疆博尔塔拉蒙古自治州农业科技开发中心,博乐833400 [2]新疆农业大学资源环境学院,乌鲁木齐830052

出　　处：《新疆农业大学学报》2004年第2期45-47,共3页Journal of Xinjiang Agricultural University

摘　　要：　通过对高肥力土壤肥料效应试验研究,结果表明:在速效钾含量380mg·kg-1的土壤上施用钾肥没有增产效应;速效氮含量126mg·kg-1、速效磷含量16mg·kg-1的高肥土壤上皮棉产量与氮磷化肥用量的效应方程为:Y=1195.6+1.11N+1.96P-0.001534N2-0.007359P2+0.003396NP,由此模拟最佳经济效益施肥为:尿素560.3kg·hm-2,重过磷酸钙为178.8kg·hm-2,最佳经济产量为1792.1kg·hm-2。Result of this study indicated that potassium fertilization has no effect on increasing yields in (380 mg·kg^(-1)) available potassium soil. Available nitrogen 126 mg·kg^(-1) and available phosphorus, effective equation between the cotton yields and N,P fertilization quantities are as follows:Y=1195.6+1.11N+1.96P-0.001534N^2-0.007359P^2+0.003396NP,then the best economical fertilization quantities could be made:urea was 560.3 kg·hm^(-2),tri-phosphate was 178.8 kg·hm^(-2),the best economical yield of cotton was( 1 792.1 kg·hm^(-2)。)

关 键 词：高肥力 棉田 氮磷钾 肥料效应 

分 类 号：S143[农业科学—肥料学]