摘要
为推动夏玉米精确施肥,以遥感监测技术为智能决策支撑,基于系统工程思想,在Microsoft.NET平台上,将GIS和夏玉米生长监测模型耦合与集成,建立氮肥精确管理系统。系统具有土壤肥力查询、作物长势反演、氮肥播前和追肥决策、专家知识咨询、系统帮助等功能。对系统功能在河南省延津县的测试与检验结果表明,与传统施肥区相比,变量施肥区植株氮积累量提高2.67%、平均产量提高67.53kg/hm2,经济收入提高148.6元/hm2。系统界面友好,易于使用,是集夏玉米生长监测和氮肥精确管理调控的决策平台。
In order to realize the precision fertilization of summer maize,precision nitrogen management system was developed based on the Microsoft.NET framework intergrating GIS and growth monitoring model.This system realized the multiple functions as browsing soil fertility,inverting growth indices,calculating the amount of base fertilizer and topdressing,querying expert knowledge,and system help.Several functions of this system were tested by field experiment in Yanjin County,Henan Province.The results showed that relative to those in uniform-rate zone,plant nitrogen accumulation,grain yield,and economic benefit in variable-rate zone enhanced by 2.67%,67.53 kg/hm^2,148.6 Yuan/hm^2,respectively.This system was user-friendly and operating-conveniently,and could help to monitor the growth condition of summer maize,and provided the platform of summer maize nitrogen management.
出处
《贵州农业科学》
CAS
2016年第2期186-189,共4页
Guizhou Agricultural Sciences
基金
河南省重大科技专项"主要粮食作物生产全过程信息化关键技术集成与研究"(121100110900)
河南省科技成果转化计划项目"夏玉米氮肥精确管理决策技术中试与示范"(132201110031)
河南省农业科技创新项目"小麦玉米智慧农业关键技术集成与综合示范"[豫财贸(2014)120号2069999]
关键词
夏玉米
光谱监测
氮肥精确管理
决策支持系统
summer maize
spectrum monitoring
precision nitrogen management
decision support system
