WANG Zepeng,LIANG Zhiguo,FAN Fengcui,et al.Dry Matter Accumulation Model of Eggplant in Solar Greenhouse Under Different Nitrogen Levels[J].Northern Horticulture,2023,(01):48-54.[doi:10.11937/bfyy.20221926]
不同氮水平下的日光温室茄子干物质积累模型
- Title:
- Dry Matter Accumulation Model of Eggplant in Solar Greenhouse Under Different Nitrogen Levels
- Keywords:
- eggplant; application amount of nitrogen fertilizer; product of thermal effectiveness and PAR; model of dry matter accumulation
- 文献标志码:
- A
- 摘要:
- 以‘茄杂2号’为试材，以滴灌节水灌溉制度为基础，设置5个不同施氮水平处理，并综合温度和光合辐射对茄子生长的影响，建立了基于辐热积的日光温室茄子干物质积累模拟模型，以期为日光温室茄子生产的光温环境调控提供参考依据。结果表明：模型对F1~F5处理日光温室茄子全株干物质积累量的实测值与模拟值的RMSE为61.41~135.37 kg?hm-2，1∶1直线之间的R2为0.997 2~0.999 6；模型对茄子茎干物质积累量的实测值与模拟值的RMSE为60.10~65.62 kg?hm-2，1∶1直线之间的R2为0.973 2~0.988 3；叶干物质积累量的实测值与模拟值的RMSE分别为57.50~122.28 kg?hm-2，1∶1直线之间的R2为0.977 5~0.991 0；果干物质积累量的实测值与模拟值的RMSE为134.21~162.02 kg?hm-2，1∶1直线之间的R2为0.982 6~0.991 2。模型精准度高，可以预测各施氮处理茄子全株及各器官的干物质积累量。
- Abstract:
- The research was based on the drip irrigation water-saving irrigation system with the material of ‘Qieza 2’,five treatments with different nitrogen application levels were set up.The effects of temperature and photosynthetic radiation on eggplant growth were also considered,and a simulation model of dry matter accumulation in eggplant in solar greenhouse which was based on the product of thermal effectiveness and photosynthesis active radiation was established，in order to provide reference for the light and temperature environment control of eggplant production in the solar greenhouse.The results showed that the RMSE of the measured and simulated dry matter accumulation of eggplant in the whole plant in solar greenhouse in F1-F5 treatment facilities was 61.41-135.37 kg?hm-2 and the R2 between the 1∶1 straight lines in plants was 0.997 2-0.999 6;the standard error RMSE and the R2 between the 1∶1 straight lines in stem was 60.10-65.62 kg?hm-2 and 0.973 2-0.988 3;the standard error RMSE and the R2 between the 1∶1 straight lines in leaf was 57.50-122.28 kg?hm-2 and 0.977 5-0.991 0;the standard error RMSE and the R2 between the 1∶1 straight lines in fruit was 134.21-162.02 kg?hm-2 and 0.982 6-0.991 2.The model had high accuracy and it could predict the dry matter accumulation in the whole plant and each organ of the eggplant under each nitrogen application treatment.
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备注/Memo
第一作者简介：王泽鹏（1994-），男，硕士研究生，研究方向为蔬菜栽培与资源高效利用。E-mail：1119802932@qq.com.责任作者：范凤翠(1971-)，女，博士，研究员，现主要从事资源高效利用与蔬菜节水等研究工作。E-mail：njsffc@163.com.基金项目：河北省重点研发计划资助项目（19227407D）；河北省重点研发计划项目农业节水科技创新专项资助项目（21326904D）；河北省现代农业产业技术体系露地蔬菜创新团队首席专家资助项目（HBCT2021200101）；河北省现代农业产业技术体系露地/设施蔬菜创新团队水肥资源高效利用岗资助项目（HBCT2021200201）；河北省农林科学院基本科研业务费基金资助项目（2021090201）；河北省农林科学院科技创新专项资助项目（2022KJCXZX-NXS-4）。收稿日期：2022-05-10