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Utilization Model of Supplementary Irrigation Apple with Harvested Rainwater Based on Runoff Regulation
Authors
孟岩
杨世伟
+4 more
梁改革
赵文君
韩浩
高建恩
Publication date
1 January 2010
Publisher
Abstract
针对我国优质苹果主产区黄土高塬沟壑区苹果的产量和品质常受干旱与水土流失及不合理施肥因素的制约,通过在典型高塬沟壑区塬面的降雨径流收集补灌苹果的水肥耦合试验,分析集雨补灌苹果利用模式的配置指标。结果表明适宜于黄土高塬沟壑区的集雨补灌苹果利用模式指标参数可初步确定为:不同降水保证率年份收集全部径流所需修建固化土集流面面积为360~570 m2/hm2,配置水窖容积为107.44 m3/hm2;补灌灌水定额57.75m3/hm2;补灌时间为萌芽期和果实膨大期;施肥纯量基准为0.2 kg/株;肥料配比N∶P∶K为1∶2∶2,同时该模式产投比达到1.41,且能有效的减少地表径流量,防止水土流失。最后提出了此模式适宜应用和推广的地区
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018