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日光温室主要环境参数对番茄本体长势的影响
张传帅1, 徐岚俊1, 李小龙1, 陈华1, 葛文章2, 刘婞韬1, 于晓宁2, 孙梦遥1
1.北京市农业机械试验鉴定推广站, 北京 100079;2.中国农业大学 信息与电气工程学院, 北京 100193
摘要:
针对日光温室环境调控缺乏理论支撑,环境信息监测利用难,作物长势难量化的问题,以北京市春夏季日光温室番茄为试验材料,采用农业物联网设备实时监测温室主要环境参数(空气温度、空气相对湿度、CO2浓度、光照强度、土壤温度和土壤水分)和番茄本体长势参数(番茄茎直径微变化、果实直径微变化和叶面温度),借助Matlab 2014a平台建立模型,对温室中主要环境参数对番茄本体长势的影响进行研究。结果表明:1)建立的幼苗期各环境参数对番茄茎直径微变化的影响回归模型和结果期各环境参数对茎直径微变化、果实直径微变化、叶面温度的影响回归模型可以反映出不同环境参数对番茄茎直径微变化、果实直径微变化和叶面温度的影响程度;2)建立的番茄果实直径预测模型,训练集相关系数达到0.92,测试集相关系数达到0.88,满足预测需求;3)试验分析得到的幼苗期和结果期各主要环境参数的合理控制范围符合番茄实际生长环境要求。该研究可为春夏季日光温室番茄的生产环境调控提供参考,也为环境数据监测与环境调控机构的智能化关联提供了一种解决方案。
关键词:  日光温室  番茄  茎直径微变化  果实直径微变化  环境参数
DOI:10.11841/j.issn.1007-4333.2019.10.14
分类号:
基金项目:北京市农业农村局项目(PXM2017_036231_000027;PXM2017_036231_0000010)
Effects of main environmental parameters on the growth of tomato in solar greenhouse
ZHANG Chuanshuai1, XU Lanjun1, LI Xiaolong1, CHEN Hua1, GE Wenzhang2, LIU Xingtao1, YU Xiaoning2, SUN Mengyao1
1.Beijing Agricultural Machinery Experiment Appraisal Popularize Station, Beijing 100079, China;2.College of Information and Electrical Engineering, China Agricultural University, Beijing 100193, China
Abstract:
In view of the lack of theoretical support for environmental regulation and control of solar greenhouse,the difficulty of monitoring and utilizing environmental information and quantifying crop growth,tomatoes planted in solar greenhouse in spring and summer of Beijing were used as experimental materials to study the effects of greenhouse environmental parameters on the growth of tomatoes.Devices of IOT in agricultural were used to monitor main environmental parameters (greenhouse air temperature,relative humidity of air,CO2 concentration,intensity of illumination,soil temperature and soil moisture) and tomato growth indexes (stem diameter micro-variation,fruit diameter micro-variation and leaf surface temperature) in solar greenhouse.The models were built on the platform of Matlab 2014a.The results showed that:1) A regression model of the effects of environmental parameters on stem diameter micro-variation,fruit diameter micro-variation and leaf surface temperature in fruit stage and a regression model of the effects of environmental parameters on stem diameter in seeding stage were established.The influence of different environmental parameters on the slight change of stem diameter,fruit diameter and leaf temperature of tomato were reflected through the model;2) A prediction model of tomato fruit diameter was established.The correlation coefficients of training set and testing set were respectively 0.92 and 0.88,which met the prediction requirements;3) The reasonable control range suitable for growth of tomatoes of the main environmental parameters in the seedling and fruit stages obtained from the experiment analysis were proposed.A reference was provided for the environmental regulation of tomato production in solar greenhouse in spring and summer.Solutions were also provided for the intelligent association between environmental data monitoring and environmental regulatory agencies though the study.
Key words:  solar greenhouse  tomato  stem diameter micro-variation  fruit diameter micro-variation  environmental factors
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