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PSO-SVM Model for Water-Fertilizer Production Function of Winter Wheat
Author(s): 
Pages: 1-4,11
Year: Issue:  12
Journal: Water Saving Irrigation

Keyword:  winter wheatwater-fertilizer production functionyield prediction;
Abstract: 作物的水肥生产函数研究是非充分灌溉理论的重要内容,也是通过灌溉制度优化提高农田水、肥利用效率的基础.本文建立了施肥灌水—产量的支持向量机(SVM)预测模型,并通过粒子群优化算法(PSO)对支持向量机(SVM)的参数进行优化选择,得出最优的水—肥—产量支持向量机(SVM)预测模型,基于潇河试验站的灌水试验数据,分别建立了水肥生产函数的BP神经网络模型和PSO-SVM模型,并结合文献[12]中的作物生长模型进行了对比分析,结果表明PSO-SVM模型精度优于其他模型.
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