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| 棉花膜下滴灌比例混合变量施肥系统的研发 | |
| 引用本文： | 李富先,吕 新,王海江,潘冬梅.棉花膜下滴灌比例混合变量施肥系统的研发[J].农业工程学报,2008,24(5):115-118. |
| 作者姓名： | 李富先 吕 新 王海江 潘冬梅 |
| 作者单位： | 1. 国家节水灌溉工程技术研究中心,石河子,832000 2. 新疆生产建设兵团绿洲生态农业重点实验室,石河子832000;石河子大学,石河子,832000 3. 新疆生产建设兵团绿洲生态农业重点实验室,石河子,832000 |
| 基金项目： | 兵团农业科技攻关计划项目 , 新疆兵团重大科技专项 , 国家科技支撑计划 |
| 摘 要： | 根据膜下滴灌棉田水肥管理的要求,在建立施肥模型和施肥方案的基础上,研发适用于大田棉花膜下滴灌的比例混合变量施肥系统,该系统可通过计算机程序控制(CPC)、单板机时序控制(PLC)和遥控控制(Rc)等三种方法,实现变量控制施肥,控制部分可在24V的电压下工作,施肥器通过水流驱动无需动力,实现提高肥料利用率10%以上. |
| 关 键 词： | 变量施肥 施肥模型 施肥判断 比例混合 肥料利用率 |
| 收稿时间： | 2007/1/18 0:00:00 |
| 修稿时间： | 2008/3/19 0:00:00 |
Research and development of the proportionally-mixed variable rate fertilization system for cotton drip irrigation under mulch film |
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| Li Fuxian,Lu Xin,Wang Haijiang,Pan Dongmei.Research and development of the proportionally-mixed variable rate fertilization system for cotton drip irrigation under mulch film[J].Transactions of the Chinese Society of Agricultural Engineering,2008,24(5):115-118. | |
| Authors: | Li Fuxian Lu Xin Wang Haijiang Pan Dongmei |
| Abstract: | According to the requirements of water and fertilizer management for the cotton drip irrigation under mulch film, based on developing fertilization models and schemes, the system of proportionally-mixed variable rate fertilization suitable for cotton drip irrigation under mulch film was developed. The system has three functions of programmable control (PLC), computer programmed control (CPC) and remote control (RC). It can reach variable rate fertilization control, the control section working pressure is 24 voltage, and was driven by water without power. Finally, the fertilizer utilization efficiency increases by more than 10%. |
| Keywords: | variable rate fertilization fertilization model fertilization judgment proportionally-mixed fertilizer utilization efficiency |
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