加工番茄肥料运筹的动态知识模型

A dynamic knowledge model for fertilization management in processing tomato

通过分析和提炼加工番茄养分需求和肥料管理的最新研究资料,在综合考虑土壤理化性质、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养分需求规律,建立了具有系统性和时空适用性的加工番茄养分运筹动态知识模型。该模型可用于精确定量不同环境条件和产量目标下的氮磷钾养分需求总量及其在不同生育时期的分配比例。利用不同生态点、品种、土壤类型和产量目标等资料对养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用性。

Through analyzing and extracting the newest researches on nutrient requirement and fertilization management of proc-essing tomato,a dynamic knowledge model for decision-making was developed.With the principles of nutrient balance,the estab-lishment of the model was based on total nutrient supply levels and their distribution among main growth stages of processing tomato under different environments and yield targets,and integrated the factors of soil physic-chemical properties,yield targets and variety.Case studies on the knowledge model with the experiment data sets of different eco-sites,varieties and soil characters indicated a good model performance in decision-making and applicability.