%0 Journal Article
%T Nutrient management strategy of paddy rice-upland crop rotation system.<br>水旱轮作系统作物养分管理策略
%A FAN Ming-sheng
%A JIANG Rong-feng
%A ZHANG Fu-suo
%A L Shi-hua
%A LIU Xue-jun
%A <br>范明生
%J 应用生态学报
%D 2008
%I 
%X Paddy rice-upland crop rotation system is a major cropping system in China,and practiced widely along the Yangtze River basin.A unique feature of this system is the annual conversion of soil from aerobic to anaerobic and then back to aerobic condition,which can result in the changes of soil physical,chemical,and biological prosperities among seasons,making a special agroecosystem.The major challenges faced by this system include declining or stagnating productivity,increasing shortage of irrigation water,improper management of nutrients,low efficiency of resource utilization,and environmental pollution.Based on an overview of the characteristics and problems of paddy rice-upland crop rotation system,this paper put forward a strategy of practicing integrated nutrient management to solve the contradictions between nutrient input,crop production and environmental risk.The key points of this strategy included nutrient management from the whole rotation system perspective,integrated use of nutrients from various sources(chemical fertilizers,organic fertilizers,and nutrients from the environment),synchronization of nutrient supply and crop nutrient demand,application of different management technologies based on the characteristics of different nutrient resources,and integration of nutrient management with other cropping system technologies like water saving and high-yielding cultivation,etc.
%K paddy rice-upland crop rotation
%K high-efficiency nutrient resource utilization
%K highyielding
%K environmental protection
%K integrated nutrient management<br>水旱轮作
%K 养分资源高效利用
%K 高产
%K 环境保护
%K 养分资源综合管理
%K 水旱轮作
%K 轮作系统
%K 作物需求
%K 环境养分
%K 管理策略
%K system
%K rotation
%K crop
%K paddy
%K management
%K strategy
%K 结合
%K 农作技术
%K 高产栽培
%K 节水
%K 管理技术
%K 资源特点
%K 供应匹配
%K 有机肥
%K 化肥
%K 应用
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=28BA5708C1F28C51ABB2A38C585FC2DB&yid=67289AFF6305E306&vid=2A8D03AD8076A2E3&iid=0B39A22176CE99FB&sid=D1D63D047E37A053&eid=4BEA9A781F286FC6&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=4&reference_num=69