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The Simulation Models of Nitrogen Accumulation and Partitioning in Plant for Protected Cultivated Tomato

文献类型： 会议论文

第一作者： Yuli Chen

作者： Yuli Chen 1 ; Hongxin Cao 2 ; Yan Zhu 3 ; Yan Liu 2 ; Weixin Zhang 1 ;

作者机构： 1.Institute of Agricultural Economics and Information /Engineering Research Center for Digital Agriculture, Jiangsu Academy of Agricultural Sciences,Nanjing 210014, Jiangsu Province, P.R. China,College of Agronomy, Nanjing Agricultural University,Nanjing 210095, Jiangsu Province, P.R. China

2.Institute of Agricultural Economics and Information /Engineering Research Center for Digital Agriculture, Jiangsu Academy of Agricultural Sciences,Nanjing 210014, Jiangsu Province, P.R. China

3.College of Agronomy, Nanjing Agricultural University,Nanjing 210095, Jiangsu Province, P.R. China

关键词： Precision fanning;Wireless sensor network;Sensor nodes deployment

会议名称： IFIP WG 5.14 international conference on computer and computing technologies in agriculture

主办单位：

页码： 44-52

摘要： [Objective] In order to quantify the nitrogen accumulation and partitioning of protected cultivated tomato plant. [ Method ] The field experiments on cultivars and fertilizer were conducted in 2009 and 2010, and cultivars: Bl, B2, and B3 were adopted. [Result] The simulation models of nitrogen accumulation and partitioning for protected cultivated tomato plant were built by analyzing the relationship between partitioning index and product of temperature and light in accordance with the tomato growth characteristics in this paper. The models were validated using independent experiment dataset, the results showed that RMSE, X_(de), and R~2 between simulated and measured values of nitrogen accumulation in above-ground plant and root were 0.546 g-m~(-2),0.447 g·m~(-2), and 0.956; 0.041 g·m~(-2), 0.033 g·m~(-2), and 0.942, respectively. That of nitrogen accumulation in stem, leaf, and fruit were 0.165 g·m~(-2), 0.132 g·m~(-2), and 0.839; 0.146 g·m~(-2), 0.099 g·m~(-2), and 0.945; 0.246 g·m~(-2), 0.166 g·m~(-2), and 0.845, respectively. [Conclusion] This study indicated that the nitrogen accumulation and partitioning of different cultivars and fertilizer levels in the protected cultivated tomato plant could be well simulated by these models.

分类号： s1

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