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
出 处:《自然资源学报》1998年第3期206-213,共8页Journal of Natural Resources
基 金:国家科技攻关项目
摘 要:在分析以定西为代表的半干旱丘陵沟壑区农业资源特征的基础上,着重讨论了资源节约型农业技术的定界及其发展现状和作用,阐述了集水补灌等资源节约型农业技术持续发展的方向,以便为同类地区农业高效发展提供调控依据。Based on analysis of agricultural resources characteristics in the simiarid loessal hilly and gully regions in Dingxi of Gansu Province, the paper focuses on the discussion of the establishment of resources saving agrotechnical systems, present sitcuation of their development, and role they play. Their sustainable development directions of the resource saving agrotechniques related to the water assemble techniques and water assemble irrigations are also stated in this paper, so as to promote the control bases for high efficient development of agriculture in areas similar to Dingxi.
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