Characterization hydrodynamic of model the Green and Ampt in a soil with organic improvers
In agriculture, water efficiency and balance of supply and demand in crops are essentials. The lack of knowledge in the infiltration process in gravity irrigation increases in high-demand crops such as corn, sorghum and beans. Knowing the moisture retention in agricultural soils is important to sati...
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| Autores principales: | , , , , |
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| 格式: | Online |
| 语言: | spa |
| 出版: |
Universidad de Sonora
2022
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| 在线阅读: | https://biotecnia.unison.mx/index.php/biotecnia/article/view/1627 |
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| 总结: | In agriculture, water efficiency and balance of supply and demand in crops are essentials. The lack of knowledge in the infiltration process in gravity irrigation increases in high-demand crops such as corn, sorghum and beans. Knowing the moisture retention in agricultural soils is important to satisfy the demand in agriculture. The purpose of this research was to study the hydrodynamic movement of water in eight treatments, mixed homogeneously, with organic additives and agricultural soil (clay loam), analyzing benefits in gravity irrigation (irrigation interval). Infiltration (F) was analyzed with the Green and Ampt model; Direct and indirect physical properties were evaluated, such as the volumetric water content at saturation (θS) and capillary pressure against wetting (ψf), humidity tension curve, the second parameter applying the Brooks and Corey method, and hydraulic conductivity ( Ks). The results are variable in relation to the control, organic improvers increased moisture retention by 30% and the irrigation interval increased by six days. The increase in moisture retention and accumulated infiltration, were obtained with organic material (T2) and organic material (T7), and obtained in corn harvest residues.
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