棉花氮肥和水分运筹的动态知识模型

摘要/Abstract

摘要： 通过分析和提炼棉花氮肥运筹和水分管理的最新研究资料,在综合考虑气候条件、土壤理化性质、产量目标、品种特性等影响因子的基础上,根据养分平衡原理和水分需求规律,建立了棉花氮肥和水分运筹的动态知识模型.模型可用于精确定量不同环境和不同产量目标下的氮肥和水分需求总量及其在不同生育时期的分配比例等.利用不同生态点、不同品种、不同土壤类型和不同产量目标等资料对氮肥和水分运筹知识模型进行了验证.结果表明模型具有较好的决策性和适应性.

关键词: 棉花, 氮肥运筹, 水分管理, 知识模型

Abstract: Through analyzing and extracting the newest research results on nitrogen and water management of cotton,a dynamic knowledge model for decision-making on total nitrogen and water supply levels and their distribution among main growth stages of cotton under different environments and yield targets was developed,with the principles of nitrogen balance and water demand and by integrating the factors of climate,soil,yield and variety.Case studies on the knowledge model with the experiment data sets of different eco-sites,varieties and soil characters indicaed a good model performance in decision-making and applicability.

Key words: Cotton, Nitrogen management, Water management, Knowledge model

中图分类号:

S11⁺6

张怀志, 朱艳, 曹卫星, 周治国, 张立祯. 棉花氮肥和水分运筹的动态知识模型[J]. 应用生态学报, 2004, (5): 777-781.

ZHANG Huaizhi, ZHU Yan, CAO Weixing, ZHOU Zhiguo, ZHANG Lizhen. A dynamic knowledge model for nitrogen and water management of cotton[J]. Chinese Journal of Applied Ecology, 2004, (5): 777-781.

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