摘要
为实现不同深度下作物根系的实时监测与图像采集,设计开发了作物根系生长监测微根管装置,图像采集后可以通过上位机软件进行实时显示与存储。装置由监测管与控制箱组成,监测管使用亚克力材料制作透明外壳,同时在管内通过丝杠和导杆架设滑动轨道,利用步进电机实现摄像头在导轨上的运动控制;控制箱以STM32单片机为核心控制板,并根据实际需求选取了相应外设模块。以番茄根系为研究对象进行持续98 d的图像采集,借助软件RhizoVision Explore对根系图像进行分析,试验结果表明,前70 d番茄根系整体生长速度较快,后28 d逐渐趋于稳定,在深度6~10 cm处分布较为密集,根长密度在深度10 cm处于第91天达到最大值(1.22 cm/cm^(3)),分析结果与番茄根系生长规律一致,表明本根系生长监测微根管装置能在不影响根系持续生长的情况下完成对作物根系的长期在线监测,满足作物根系监测要求。
A set of crop root growth monitoring minirhizotron device was designed and developed to achieve real-time monitoring and image collection of crop roots at different depths.The collected images can be displayed and stored in real-time through upper computer software.The device consisted of a monitoring tube and a control box.The monitoring tube used acrylic material to make a transparent shell,and a sliding track was set up inside the tube through screws and guide rods.The motion control of the camera on the track was achieved by using a stepper motor.The control box was based on the STM32 microcontroller as the core control board,and corresponding peripheral modules were selected according to actual needs.The tomato root system was used as the research object for 98 d of image collection,and the root image was analyzed by using the software RhizoVision Explore.The experimental results showed that the overall growth rate of tomato roots was faster in the first 70 d,and gradually stabilized in the last 28 d,and distributed densely at depths of 6~10 cm.The root length density reached its maximum value of 1.22 cm/cm^(3) in the 91st day at a depth of 10 cm.The analysis results were consistent with the growth pattern of tomato roots,indicating that this root growth monitoring minirhizotron device can complete long-term online monitoring of crop roots without affecting the continuous growth of roots,meeting the requirements of crop root monitoring.
作者
黄祺成
杨佳昊
左昊轩
孟繁佳
李思恩
李莉
HUANG Qicheng;YANG Jiahao;ZUO Haoxuan;MENG Fanjia;LI Sien;LI Li(Key Laboratory of Agricultural Information Acquisition Technology,Ministry of Agriculture and Rural Affairs,China Agricultural University,Beijing 100083,China;Key Laboratory of Smart Agriculture System Integration,Ministry of Education,China Agricultural University,Beijing 100083,China;College of Water Resources and Civil Engineering,China Agricultural University,Beijing 100083,China)
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2023年第S02期286-293,共8页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家重点研发计划项目(2022YFD1900801)
关键词
根系
微根管
实时监测
嵌入式系统
root system
minirhizotron
real-time monitoring
embedded system
