不同氮水平下的日光温室茄子干物质积累模型  

Dry Matter Accumulation Model of Eggplant in Solar Greenhouse Under Different Nitrogen Levels

作　　者：王泽鹏 梁志国 范凤翠[1] 刘胜尧[1] 贾宋楠[1] 秦勇[2] WANG Zepeng;LIANG Zhiguo;FAN Fengcui;LIU Shengyao;JIA Songnan;QIN Yong(Institute of Agricultural Information and Economics,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang,Hebei 050051;College of Horticulture,Xinjiang Agricultural University,Urumqi,Xinjiang 830052)

机构地区：[1]河北省农林科学院农业信息与经济研究所,河北石家庄050051 [2]新疆农业大学园艺学院,新疆乌鲁木齐830052

出　　处：《北方园艺》2023年第1期48-54,共7页Northern Horticulture

基　　金：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)。

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R^(2)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。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 R^(2) between the 1∶1 straight lines in plants was 0.997 2-0.999 6;the standard error RMSE and the R^(2) 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 R^(2) 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 R^(2) 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.

关 键 词：茄子 施氮量 辐热积 干物质积累模型 

分 类 号：S641.1[农业科学—蔬菜学]