现代温室黄瓜发育动态模型研究

Study on the Development Dynamic Model of Cucumber in Modern Greenhouse

为了研究现代温室黄瓜发育动态模型,动态掌握作物的生长规律。通过对黄瓜生长的连续定期试验观测,将黄瓜生育期划分为7个阶段,采用生长度日法建立温室黄瓜发育进程模拟模型,同时对模型进行了检验,并确定了各生育阶段的生长度日参数。用逐日平均温度替代了各生育阶段的日平均温度,所建立的发育模拟模型能连续动态地模拟作物生长到任一阶段时的发育进程,从而有效地预测出黄瓜各生育阶段经历的天数。通过模拟值与观测值的比较表明所建立的黄瓜发育模型模拟精度较高,预测效果较好。该模型对作物生长发育具有较好的预测性和可行性,为进一步有效建立作物生长动态模型奠定了基础。

The aim of the research was to investigate development dynamic model of cucumber in modern greenhouse,which could master the growth law of crops dynamically.In the continuous periodic tests and investigation of the growth of cucumber,the development stages of cucumber were divided into 7 phages and the simulated model of cucumber development process in greenhouse was established with growing degree day method.The model was checked and the parameter of growth degree day in different stages was confirmed.When the daily mean teimperature replaced-daily mean teimperature in different growth stages, the simulated development models of cucumber set up could simulate the development process in any growth stage of crops, so as to forecast the days in different developing phase experienced by cucumber effectively, The comparison between the simulated value and the observed value showed that the simulated cucumber development models established had higher simulated precision and better forecasting effect.The model had better prediction and feasibility between crop growth and development and laid a basis for setting up the dynamic model of crop growth.