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A Computer Program for automatic watering Based on Potential Evapotranspiration by Penman Method and Predicted Leaf Area in Miniature Pot Rose Production

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Agricultural Sciences in China 2010年第3期9卷 370-377页

作者： YU Wen-jin Kitamura Ryo Kato Katsuhiko LI Lian-hua Fukui Hirokazu Agricultural College Guangxi University Nanning 530004 P.R.China The United Graduate School of Agricultural Science Gifu University Gifu 5011193 Japan Faculty of Applied Biological Sciences Gifu University Gifu 5011193 Japan Gifu Prefectural Center for Agricultural Sciences Gifu 5011152 Japan

In this study, we developed a computer program for automatic prediction of watering time point by considering the environmental factors such as solar radiation, air temperature and relative humidity based on the multiple linear regression equation of leaf area and Penman Method. The experiments were carried out for a year in two watering experimental plots, one of which was controlled by pF value, and the other by the computer program. After comparing the results of the two plots, the following findings were obtained. In the computer program plot, the observed and predicted values of both leaf area and evapotranspiration indicated significant correlation at the 1% level, which suggested that the computer program had high prediction accuracy. In addition, no significant difference was observed between the two experimental plots with respects to the plant height, plant diameter, leaf area, leaf number, fresh weight, and dry weight, which demonstrated that the plants in the computer program plot had normal growth. On the other hand, although the number of flower buds and flowering shoots showed higher values at the end of certain cultivations in the computer program plot than those in pF value plot, we proposed that it was due to the effect of cumulative daily solar radiation in the greenhouse, rather than the watering. Thus, we have reached the conclusion that the computer program for automatic prediction of watering time point developed by this study has high applicability in miniature pot rose production.

关键词： automatic watering leaf area miniature pot rose Penman Method program

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A novel and smart automatic light-seeking flowerpot for monitoring flower growth environment

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International Journal of Agricultural and Biological Engineering 2018年第2期11卷 184-189页

作者： Xihai Zhang Dong Liu Chengguo Fan Jiali Du Fanfeng Meng Junlong Fang School of Electronic Engineering and Information Northeast Agricultural UniversityHarbin 150030China

Although the flowerpot is widely used for indoor flowers,it cannot meet the needs of intelligent management during the uncared-for *** objective of this study was to design a new microcontroller-based smart *** overall system was composed of three parts:information collection layer,automatic control layer and data transmission ***,in the process of collecting information,the Laiyite criterion and the normalized weighted average algorithm were adopted to improve the accuracy of information ***,for making precise control decisions,the fuzzy control was used to achieve automatic on-demand ***,the method for comparative analysis of regional light intensity was utilized to achieve light-seeking and *** results showed that the smart flowerpot had strong anti-jamming performance for information collection,the relative soil moisture of flowers could be stably maintained near the optimum humidity(65%),and the light was well-distributed on the flower with the error angle of light-supplementing ranged from-3°to 3°.

关键词： smart flowerpot automatic watering seeking light supplementing light control microcontroller

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