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中药材高效节水灌溉的涵义

什么是中药材高效节水灌溉? 在充分利用降水和土壤水的前提下高效利用灌溉用水,最大限度地满足中药材需求,以获取中药材生产的最佳经济效益、社会效益、生态环境效益。 一、中药材高效节水示范推广的发展现状 目前我国采用喷灌、微灌和管道输水等先进节水灌溉技术的比例很低,尤其喷、微灌面积在中药材的运用就不言而喻;节水灌溉设备质量差、配套水平低,技术创新与推广体系不健全;另外,全国有效灌溉面积95%以上的地面灌溉普遍存在着土地平整精度差、田间工程不配套、管理粗放的问题;其次,四是灌溉用水管理技术落后,信息技术、计算机、自动控制技术等高新技术在中药材灌溉上的运用就更加少之又少。 二、我国中药材高效节水示范推广发展情况 我国近年来中药材高效节水灌溉的基本思路是,以提高中药材生产水资源利用率为中心,以提高中药材生产水资源利用率为中心,以增强中药材高效节水灌溉综合能力为重点,针对 ...
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