Water Allocation Based on Real-Time Simulation for Improving Soil Water Content

Soil moisture capacity improvement could be a solution to increase the water productivity under drought condition. In this study, a try has been made to evaluate the influence of the superabsorbent polymer as a soil humidifier to increase root zone moisture content for maize cultivation. Field exper...

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Bibliographic Details
Published in:Iranian journal of science and technology. Transactions of civil engineering 2022-06, Vol.46 (3), p.2301-2313
Main Authors: Rahmani, Mohammad Reza, Khoshnavaz, Saeb, Boroomand Nasab, Saeed, Derikvand, Ehsan
Format: Article
Language:English
Subjects:
Algorithms
Biomass
Civil Engineering
Confidence intervals
Cultivation
Drought
Engineering
Field tests
Growing season
Irrigation
Moisture content
Moisture effects
Optimization
Polymers
Productivity
Research Paper
Root zone
Simulation
Soil improvement
Soil moisture
Soil water
Superabsorbent polymers
Water allocation
Water content
Water resources
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Summary:Soil moisture capacity improvement could be a solution to increase the water productivity under drought condition. In this study, a try has been made to evaluate the influence of the superabsorbent polymer as a soil humidifier to increase root zone moisture content for maize cultivation. Field experiments were established in the Gotvand region of Khuzestan province, Iran. Three treatments of Aquasorb 3005 application (0, 300, and 600 kg/ha) and four irrigation strategies were considered in three replications for two growing seasons of 2019 and 2020 (from March to July). Irrigation planning, cultivation costs, biomass, harvest index and canopy cover were measured at different time steps of the growing seasons to provide growth simulation models using AquaCrop software. Minimum error test showed that the use of Aquasorb 3005 increased the yield of the product at 1% confidence level. Moreover, the depth and timing of irrigation were optimized by whale optimization algorithm with the objective of maximization of biomass under the water resources and economic constraints. Results illustrated the influence of superabsorbent application and irrigation planning on the improvement of water productivity.
ISSN:2228-6160
2364-1843
DOI:10.1007/s40996-021-00724-6