检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:高范华 王帅[1] 纪亚男[1] 孙晓琴[1] 周鹏[1] 王春堂[1]
机构地区:[1]山东农业大学水利土木工程学院,山东泰安271018
出 处:《中国农村水利水电》2015年第8期28-30,共3页China Rural Water and Hydropower
基 金:山东省重大水利科研与技术推广项目(SDSLKY201224)
摘 要:试验利用山东引黄灌区内原有机井灌溉设施,在灌区生产较普遍规格(3m×95m)畦田内进行波涌流灌溉,并在水流推进、土壤含水率变化、冬小麦水分利用效率方面与连续灌溉进行了对比。试验条件下研究结果表明,周期数为2,节水率为10%的波涌流灌第二周期平均水流推进速度为连续灌溉的1.85-1.88倍,波涌流灌第二周期停水后的冲长为连续灌停水后的1.50-1.71倍,可以高质量完成灌溉任务,并且冬小麦水分利用效率提高10.41%。This test used the original pumped well irrigation facilities to irrigate the border check of general specification (3 m × 95 m) with surge irrigation system in Yellow River irrigation area of Shandong Province .And we compared the surge irrigation water flow propulsion ,change of soil water content and water use efficiency of winter wheat with continuous irrigation .Under the test condi‐tion ,the results showed that the second period of surge irrigation which had two periods and whose water-saving rate was 10% was 1 .85-1 .88 times the average speed of continuous irrigation .And the second period's water propulsion length after watering was 1 .50-1 .71 times that of continuous irrigation .These proved that surge irrigation finished the irrigation task with high quality .At the same time ,the water use efficiency of winter wheat increased by 10 .41% .
关 键 词:山东引黄灌区 机井 波涌流 冬小麦 水分利用效率 适用性
分 类 号:S275[农业科学—农业水土工程]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.15