Developing an optimization model in drip fertigation management to consider environmental issues and supply plant requirements

Azad, Nasrin; Behmanesh, Javad; Rezaverdinejad, Vahid; Abbasi, Fariborz; Navabian, Maryam

doi:10.1016/j.agwat.2018.06.030

Cited by 38 publications

(14 citation statements)

References 65 publications

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“…In recent years, most studies have focused on modelling furrow fertigation with continuous flow by a numerical solution of the equations governing water flow and solute transport. Subsequently, the developed models have been used to simulate surface or subsurface water flow and solute transport (Abbasi et al, 2012; Soroush et al, 2012; Mousavinezhad et al, 2013; Azad et al, 2018; Mohammadi et al, 2019). Playan and Faci (1997) used a simplified model to simulate nitrate movement in border irrigation.…”

Section: Introductionmentioning

confidence: 99%

Development and evaluation of a water flow and solute transport model for furrow fertigation with surge flow

Ojaghlou

Sohrabi

Abbasi

et al. 2020

Irrigation and Drainage

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One of the important factors in fertilizer application efficiency in surface fertigation is the shape of inflow hydrographs. In this research, a fertigation model is developed to analyse the effect of surge flow on furrow fertigation. Saint-Venant equations and the advection-dispersion equation were used to estimate water flow and solute transport characteristics, respectively. The field experiments, including different fertigation treatments with surge flow, were conducted to calibrate and evaluate the developed model. Most of the water and nitrate losses occurred through runoff; water losses through runoff ranged from 13.8 to 33.4%, while fertilizer losses varied between 5.1 and 47%. Water and nitrate losses in the second fertigation experiments were higher than those in the first due to the reduction of the surge effect. A comparison between simulated and observed data shows appropriate accuracy of the developed model; the root mean squared error (RMSE) index for nitrate and water runoff losses was 8.4 and 12.1%, respectively. Fertigation during all advance surges was recognized as the desirable option in furrow irrigation with a surge flow.

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Section: Introductionmentioning

confidence: 99%

Development and evaluation of a water flow and solute transport model for furrow fertigation with surge flow

Ojaghlou

Sohrabi

Abbasi

et al. 2020

Irrigation and Drainage

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“…During long term, salts leaching under the effects of rainfall can contaminate groundwater [19][20]. On the other hand, the salinization phenomenon in the topsoil can be cyclic, and the effect of salinity on crops attenuated with proper management that involves appropriate irrigation for salt leaching [21][22][23]. This risk reduces in the case of special irrigation strategy.…”

Section: Discussionmentioning

confidence: 99%

Long-term assessment, modeling and forecast of salinity conditions of reclaimed mine dumps of Western Donbass

et al. 2021

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The neutralization of toxic mine rocks with additional of soil and loess like loam mass leads to a significant decreasing of salts migration at the contact zone. The mathematical model was working out follow general principle where mine rock is pollution source, but soil and loess like loam take place as volumetric filter for water-soluble salts. MathCAD file with commands for solving the problem forecasting the process of vertical salinization of reclaimed minelands was developed. The prospect for the numerical model using up to the most accepted range of values with experimental data shown. The irrigation of reclaimed minelands in the Western Donbass possible in the case of the dilution of the mine waters of aquifers with the Samara river water.

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“…As all these parameters related to each other, the real case for denitrification will surely change the leached amount of NO3 -, that's why there are both high and zero-denitrification models in this study to be able to predict both scenario's impact. Even though drip fertigation system usually lowers the NO3 -leaching [67], [68], the real world examples are expected to have higher NO3 -leaching values. If leaching NO3 -in these soils is larger that would improve the significance and the feasibility of pump and fertilize ( Figure 7).…”

Section: Discussionmentioning

confidence: 99%

Modeling irrigation with nitrate contaminated groundwater

Hatipoğlu¹,

Kurt²

2020

Pamukkale J Eng Sci

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An alternative method to treat the nitrate-contaminated groundwater under the agricultural fields while providing economic benefit is called pump and fertilize. Pump and fertilize, while removing the nitrate in the groundwater, can reduce nitrate and pesticide requirement. However, up to date, there are no studies evaluating the effect of this application under different soil/climate conditions. In order to apply this technology in the field and to determine its effect, a feasibility study needs to be performed. Therefore, we constructed unsaturated zone groundwater models via HYDRUS 1D for one-hectare corn field in prevalent soils and under Eskişehir, Adana, Şanlıurfa, Düzce climates in Turkey. Our results indicated that even groundwater with 50 mg/L nitrate contamination could provide economic benefit to the agriculture especially where climates and soil types are similar to Şanlıurfa. In this climate using pump and fertilize technique saves 97 kg N/year in a 1-hectare farm. The technique was especially effective for fluvisol, vertisol soils as nitrate leaching are very low, and for cambisol soils since very high nitrogen use efficiency was seen for the climates present in Turkey. Our results indicated that in general the pump and treat efficiency is less effective in wet and cold climates, like in Düzce. As a general result of our study, we concluded that dry and warm climates with relatively permeable soils are more promising for the pump and fertilize application.

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Developing an optimization model in drip fertigation management to consider environmental issues and supply plant requirements

Cited by 38 publications

References 65 publications

Development and evaluation of a water flow and solute transport model for furrow fertigation with surge flow

Development and evaluation of a water flow and solute transport model for furrow fertigation with surge flow

Long-term assessment, modeling and forecast of salinity conditions of reclaimed mine dumps of Western Donbass

Modeling irrigation with nitrate contaminated groundwater

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