南疆高产杂交棉生长性状及氮磷钾吸收模拟  

Growth Traits and Simulating Dynamics of N,P,K Accumulation of Hybrid Cotton in South Xinjiang

作　　者：柳维扬[1,2] 郑德明[1] 姜益娟[1] 范业宽[2] 

机构地区：[1]塔里木大学植物科技学院,阿拉尔843300 [2]华中农业大学资源环境学院,武汉430070

出　　处：《棉花学报》2009年第5期431-433,共3页Cotton Science

基　　金：新疆生产建设兵团棉花大面积超高产综合配套技术示范项目(2006GG21)

摘　　要：依系统研究法研究高中低三种产量水平杂交棉生长和氮磷钾吸收。结果表明,高产棉的株高与中低产棉差别不大,但主茎增长比中低产棉提前结束,高产棉总铃数明显高于中低产棉,特别在铃位空间分布上更合理;高产棉花的氮磷钾吸收可用Logistic曲线方程表达,拟合良好,快增期、持续时间与中低产棉相比有明显差异,高产棉吸收的N、P2O5、K2O总量为515.3、126.4和591.9 kg.hm-2,大于中低产棉吸收总量;高产棉较中低产棉生长协调性更好,吸收养分总量多。说明南疆棉区在目前生产条件下,应用合理的管理技术措施,能够更有效协调棉花生长和养分分配,实现棉花大面积高产。The systematic study was employed to study the growth characteristics and the accumulation law of N,P,K nutrients.Three treatments were designed in cotton fields including low-yield,medium-yield,high-yield cottons.Results showed that the stem length of high-yield cotton had no such changes with medium-yield and low-yield cottons,but the stem increase of high-yield cotton stopped before medium and low yield cottons.The numbers of total bolls for medium and low yield cottons were much lower than the high-yiel...

关 键 词：杂交棉 南疆 生长性状 氮磷钾 模拟 

分 类 号：S562.01[农业科学—作物学]