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Research on accurate perception and control system of fertilization amount for corn fertilization planter

At present, there are excessive fertilizer use and poor uniformity of fertilizer discharge in corn fertilizer planter. The key difficulty is that accurate perception and control of fertilizer amount has not been solved. Aiming at the above problems, a set of accurate perception and control system ap...

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Autores principales: Wang, Bo, Wang, Yafei, Wang, Hui, Mao, Hanping, Zhou, Liming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9732664/
https://www.ncbi.nlm.nih.gov/pubmed/36507444
http://dx.doi.org/10.3389/fpls.2022.1074945
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author Wang, Bo
Wang, Yafei
Wang, Hui
Mao, Hanping
Zhou, Liming
author_facet Wang, Bo
Wang, Yafei
Wang, Hui
Mao, Hanping
Zhou, Liming
author_sort Wang, Bo
collection PubMed
description At present, there are excessive fertilizer use and poor uniformity of fertilizer discharge in corn fertilizer planter. The key difficulty is that accurate perception and control of fertilizer amount has not been solved. Aiming at the above problems, a set of accurate perception and control system applied to corn fertilization planter was studied. According to the difference in dielectric properties between fertilizer and air, a sensor for online detection of fertilizer amount based on capacitance method was designed. And the relationship model of mass flow rate for N, P, K fertilizer and capacitance output was established. In order to reduce the influence of pulsation on fertilization flow, a high-precision fertilizer flow control system for fertilization planter based on the fertilizer flow feedback and PID control method was designed. The validated results showed that the maximum measurement error between the relationship model and capacitance output was 3.75%. As the temperature rises from room temperature to 55°C, the differential capacitance change rate of the sensor was less than 3%. The steady-state error of fertilizer discharge was less than 2%. The field experiment of the accurate perception and control system for corn fertilization amount show that the electric drive fertilization system has good consistency, the maximum and average variation coefficient of fertilization were 3.74%, 1.6%, respectively, and the variable control accuracy was greater than 97%. The control accuracy of the grain spacing control by electric drive seed metering was 98%. Therefore, the precision fertilization control system in this study can realize high-precision and on-demand fertilization. It is of great significance to realize the intelligence and precision for corn fertilization planter.
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spelling pubmed-97326642022-12-10 Research on accurate perception and control system of fertilization amount for corn fertilization planter Wang, Bo Wang, Yafei Wang, Hui Mao, Hanping Zhou, Liming Front Plant Sci Plant Science At present, there are excessive fertilizer use and poor uniformity of fertilizer discharge in corn fertilizer planter. The key difficulty is that accurate perception and control of fertilizer amount has not been solved. Aiming at the above problems, a set of accurate perception and control system applied to corn fertilization planter was studied. According to the difference in dielectric properties between fertilizer and air, a sensor for online detection of fertilizer amount based on capacitance method was designed. And the relationship model of mass flow rate for N, P, K fertilizer and capacitance output was established. In order to reduce the influence of pulsation on fertilization flow, a high-precision fertilizer flow control system for fertilization planter based on the fertilizer flow feedback and PID control method was designed. The validated results showed that the maximum measurement error between the relationship model and capacitance output was 3.75%. As the temperature rises from room temperature to 55°C, the differential capacitance change rate of the sensor was less than 3%. The steady-state error of fertilizer discharge was less than 2%. The field experiment of the accurate perception and control system for corn fertilization amount show that the electric drive fertilization system has good consistency, the maximum and average variation coefficient of fertilization were 3.74%, 1.6%, respectively, and the variable control accuracy was greater than 97%. The control accuracy of the grain spacing control by electric drive seed metering was 98%. Therefore, the precision fertilization control system in this study can realize high-precision and on-demand fertilization. It is of great significance to realize the intelligence and precision for corn fertilization planter. Frontiers Media S.A. 2022-11-25 /pmc/articles/PMC9732664/ /pubmed/36507444 http://dx.doi.org/10.3389/fpls.2022.1074945 Text en Copyright © 2022 Wang, Wang, Wang, Mao and Zhou https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Wang, Bo
Wang, Yafei
Wang, Hui
Mao, Hanping
Zhou, Liming
Research on accurate perception and control system of fertilization amount for corn fertilization planter
title Research on accurate perception and control system of fertilization amount for corn fertilization planter
title_full Research on accurate perception and control system of fertilization amount for corn fertilization planter
title_fullStr Research on accurate perception and control system of fertilization amount for corn fertilization planter
title_full_unstemmed Research on accurate perception and control system of fertilization amount for corn fertilization planter
title_short Research on accurate perception and control system of fertilization amount for corn fertilization planter
title_sort research on accurate perception and control system of fertilization amount for corn fertilization planter
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9732664/
https://www.ncbi.nlm.nih.gov/pubmed/36507444
http://dx.doi.org/10.3389/fpls.2022.1074945
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