新疆农业科学2011，Vol.48Issue(4)：606-610,5.
基于计算机视觉和土壤Nmin的棉田氮素养分管理系统的建立与验证
Construction of Cotton Field N Management System Based on Computer Vision and Soil Nmin
摘要
Abstract
[Objective]This paper focused on reporting cotton field N nutrient management of computer rision and soil Nmin and construction of recommending dressing N fertilizer of software FertiEXP system and its utilization .[ Method]FertiEXP software system was constructed based on cotton N nutrient absorption model , cotton N nutrient absorption model designed by computer program and estimation model of soil inorganic N use efficiency . [ Result] Plot trails demonstrated that FertiEXP system could promote N use efficiency from 37 . 85％ to 56.02％ , with a relatively rise by 48.0 ％ while harvested Equivalent yield . N residue in soil reduced by 100 kg/hm2 by FertiEXP as compared with farmers conventional practice , apparent N lose was reduced significantly . Field demonstration showed that FertiEXP could optimal N distribution in the cotton ' s whole growth period, N rate reduced by 6.7％ to 14.6 ％ , yield increased by 5 . 8 ％ to 7 .5 ％ . [ Conclusion] FertiEXP produced a sound economical profile .关键词
棉花/计算机视觉/Nmin/氮肥追肥/产量/氮肥利用率Key words
cotton/computer vision/Nmin/ nitrogen topdressing/ yield/NUE分类
农业科技引用本文复制引用
董鹏,危常州,雷咏雯,王娟,张永帅..基于计算机视觉和土壤Nmin的棉田氮素养分管理系统的建立与验证[J].新疆农业科学,2011,48(4):606-610,5.基金项目
农业部行业公益性专项(200803030) （200803030）
国家自然科学基金(31060276) （31060276）
