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:王克全[1,2] 何新林[1,2] 王振华[1,2] 葛宇[1,2]
机构地区:[1]石河子大学水利建筑工程学院,新疆石河子832003 [2]现代节水灌溉兵团重点实验室,新疆石河子832003
出 处:《节水灌溉》2010年第9期41-42,47,共3页Water Saving Irrigation
基 金:石河子大学重大科技攻关计划(gxjs2010-zdgg03-03);石河子大学高层次人才启动计划(RCZX200821)
摘 要:在新疆干旱区开展了滴灌春小麦需水规律及灌溉制度的田间试验研究,试验设置高水(405 mm)、中水(315 mm)、低水(225 mm)3种不同的灌溉定额处理,灌水周期相同,在需水高峰期为5d,其他时间为8~10 d。初步研究结果表明,高水处理与中水处理下的小麦株高和产量均明显高于低水定额,而中水处理与高水处理之间差异很小,中水分处理的产量最高;低水处理下的小麦生理出现了植株矮小、早熟的情况,并且产量最低,这说明低水处理下滴灌小麦出现了水分亏缺。但从水分生产率来看,低水处理下的最高,达到了2.87 kg/m3。综合初步研究成果,建议采用中水分处理(315 mm)的灌溉定额。Experiments were carried out to study water requirement rules and irrigation schedule ot spring wheat unaer drip irrigation in arid region of Xinjiang Autonomous Region. Three treatments with high, medium, and low irrigation water amount, were used in the experiments. Irrigation frequency was 5 days in the peak period of water requirements, and 8 to 10 days in other growing stages. The research result showed that plant height and yield under the treatments with high and medium irrigation water amount were obviously higher than that of low irrigation water amount treatment. However, no significant difference between medium and high irrigation amount treatments was observed. The medium irrigation water amount treatment had the highest yield, and the low irrigation water amount had the lowest yield. A conclusion that water deficit of spring wheat happened under low irrigation water amount treatment could be found. While the water using efficiency under low irrigation water amount treatment was the highest, up to 2.87 kg/ m3. The medium irrigation water amount treatment was suggested to use after considering all studying results.
分 类 号:S274.1[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:216.73.216.30