How Does Irrigation Affect Crop Growth? A Mathematical Modeling Approach

This article presents a qualitative mathematical model to simulate the relationship between supplied water and plant growth. A novel aspect of the construction of this phenomenological model is the consideration of a structure of three phases: (1) The soil water availability, (2) the available water...

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Main Authors: Vicente Díaz-González, Alejandro Rojas-Palma, Marcos Carrasco-Benavides
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/10/1/151
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author Vicente Díaz-González
Alejandro Rojas-Palma
Marcos Carrasco-Benavides
author_facet Vicente Díaz-González
Alejandro Rojas-Palma
Marcos Carrasco-Benavides
author_sort Vicente Díaz-González
collection DOAJ
description This article presents a qualitative mathematical model to simulate the relationship between supplied water and plant growth. A novel aspect of the construction of this phenomenological model is the consideration of a structure of three phases: (1) The soil water availability, (2) the available water inside the plant for its growth, and (3) the plant size or amount of dry matter. From these phases and their interactions, a model based on a three-dimensional nonlinear dynamic system was proposed. The results obtained showed the existence of a single equilibrium point, global and exponentially stable. Additionally, considering the framework of the perturbation theory, this model was perturbed by incorporating irrigation to the available soil water, obtaining some stability results under different assumptions. Later through the control theory, it was demonstrated that the proposed system was controllable. Finally, a numerical simulation of the proposed model was carried out, to depict the soil water content and plant growth dynamic and its agreement with the results of the mathematical analysis. In addition, a specific calibration for field data from an experiment with wheat was considered, and these parameters were then used to test the proposed model, obtaining an error of about 6% in the soil water content estimation.
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spelling doaj.art-62f6c06358a44d80aa04458c0c7ce6e02023-11-23T11:54:55ZengMDPI AGMathematics2227-73902022-01-0110115110.3390/math10010151How Does Irrigation Affect Crop Growth? A Mathematical Modeling ApproachVicente Díaz-González0Alejandro Rojas-Palma1Marcos Carrasco-Benavides2Doctorado en Modelamiento Matemático Aplicado, Facultad de Ciencias Básicas, Universidad Católica del Maule, Talca 3460000, ChileDoctorado en Modelamiento Matemático Aplicado, Facultad de Ciencias Básicas, Universidad Católica del Maule, Talca 3460000, ChileDoctorado en Modelamiento Matemático Aplicado, Facultad de Ciencias Básicas, Universidad Católica del Maule, Talca 3460000, ChileThis article presents a qualitative mathematical model to simulate the relationship between supplied water and plant growth. A novel aspect of the construction of this phenomenological model is the consideration of a structure of three phases: (1) The soil water availability, (2) the available water inside the plant for its growth, and (3) the plant size or amount of dry matter. From these phases and their interactions, a model based on a three-dimensional nonlinear dynamic system was proposed. The results obtained showed the existence of a single equilibrium point, global and exponentially stable. Additionally, considering the framework of the perturbation theory, this model was perturbed by incorporating irrigation to the available soil water, obtaining some stability results under different assumptions. Later through the control theory, it was demonstrated that the proposed system was controllable. Finally, a numerical simulation of the proposed model was carried out, to depict the soil water content and plant growth dynamic and its agreement with the results of the mathematical analysis. In addition, a specific calibration for field data from an experiment with wheat was considered, and these parameters were then used to test the proposed model, obtaining an error of about 6% in the soil water content estimation.https://www.mdpi.com/2227-7390/10/1/151nonlinear systemsstabilitycontrollabilityirrigation strategysoil–plant- atmosphere continuum
spellingShingle Vicente Díaz-González
Alejandro Rojas-Palma
Marcos Carrasco-Benavides
How Does Irrigation Affect Crop Growth? A Mathematical Modeling Approach
Mathematics
nonlinear systems
stability
controllability
irrigation strategy
soil–plant- atmosphere continuum
title How Does Irrigation Affect Crop Growth? A Mathematical Modeling Approach
title_full How Does Irrigation Affect Crop Growth? A Mathematical Modeling Approach
title_fullStr How Does Irrigation Affect Crop Growth? A Mathematical Modeling Approach
title_full_unstemmed How Does Irrigation Affect Crop Growth? A Mathematical Modeling Approach
title_short How Does Irrigation Affect Crop Growth? A Mathematical Modeling Approach
title_sort how does irrigation affect crop growth a mathematical modeling approach
topic nonlinear systems
stability
controllability
irrigation strategy
soil–plant- atmosphere continuum
url https://www.mdpi.com/2227-7390/10/1/151
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AT marcoscarrascobenavides howdoesirrigationaffectcropgrowthamathematicalmodelingapproach