Simulation of drip irrigation on slope lands

Alekseev, V. V.; Chuchkalov, Sergey; Philippov, Vladimir; Rechnov, Aleksey; Vasiliev, S. A.; Krasnov, V K

doi:10.1051/bioconf/20201700218

Cited by 4 publications

(3 citation statements)

References 9 publications

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“…The calculating was done basing on the conditions, 80 l of water were being continuously supplied onto the assigned surface point within 20 hours. Previous research on the adequacy of modeling of drip irrigation with pure water on slopes proved that results of modeling correspond well to the experimental data R 2 from 0.64 to 0.78 depending on the slope angle [14]. In the present study the processed experimental results contain lower R 2 values, namely from 0.56 to 0.68.…”

Section: Resultssupporting

confidence: 83%

Modeling the transfer of potassium monophosphate with irrigation water in drip irrigation and sprinkling

et al. 2020

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Fertigation practically always allows us to simultaneously solve a wide range of problems of supplying plants with mineral substances. It is due to the possibility to localize the application area in accordance with the structural features of the root system of the plant. A review of the studies on modeling and calculating the transfer of nutrients shows that spatial inhomogeneity of nutrients distribution may lead to their excess in wrong soil areas. Time intervals and volumes of applying dissolved fertilizers determine the not yet completely studied dynamics of concentration of the nutrition elements in the root area. Formation of the root system is under a strong influence of the boundaries of the wetting contour, since after the irrigation and soil drying nutrients tend to concentrate in this particular area. The results of transfer modeling showed significant differences in the final distribution of potassium monophosphate in soil depending on the initial distribution of moisture there. This can be pre-estimated and calculated. The designed software programme for modeling nutrients transfer with irrigation water allows the user to set various initial wetting gradients depending on the depth, the intervals between the drippers, the intensity and duration of watering. The calculations are made considering the basic hydrophysical soil characteristic and hydraulic conductivity function. The software is equipped with an interactive graphic interface for primary data processing, soil profile discretization and graphic representation of the results.

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Section: Resultssupporting

confidence: 83%

Modeling the transfer of potassium monophosphate with irrigation water in drip irrigation and sprinkling

et al. 2020

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“…Since the calculation of drip watering modes allows the dosing of water supply directly to the location of the root zone of crops. For these purposes, it is logical to use as a basis for numerical calculations the main hydro-physical property of the soil (SWRC), which determines the dependence of soil moisture pressure on soil moisture and the function of moisture conductivity (Alekseev et al 2020).…”

Section: Methodsmentioning

confidence: 99%

Experience in Implementing International Cooperation in the Field of Drip Irrigation Modelling in Conditions of Water Scarcity

Philippov

Гаврилова

Alekseev

et al. 2021

Сooperation and Sustainable Development

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As world practice shows, one of the most important criteria that significantly affects the development and growth of crops during their vegetation is the optimal moisture content in the basal layer. One of the main elements necessary to maintain the water regime of the soil at the optimal level is the determination of several determining parameters, which include, for example, setting the humidification depth of the basal system of a certain culture and maintaining a given moisture level at this depth. The frequency of watering is determined by the depth of humidification: as the depth of humidification increases, the frequency of watering decreases. For the most accurate determination, as shown by many years of experience in international cooperation, it is necessary to preliminary simulate the dynamics of soil moisture. This significantly reduces the costs associated with irrigation of the soil, while significantly improving the efficiency of irrigation. The role of modelling as an effective tool for pre-monitoring the implementation of soil irrigation on the scale of any market entity is growing annually, due to the need to ensure sustainable balanced agricultural development (Devika et al. J Rural Dev 36:293-310, 2017). At the same time, international cooperation in the exchange of experience and advanced information technologies plays an important role (Maksimov et al. Proceedings of the 30th international business information management association conference, IBIMA

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“…The values of the wetting front diameter, depth, and total area for different cases of soil surface slope and water application rate help determine the distance between the emitters and laterals. Also, to reduce the deep percolation losses and locate the plant from the emitter where the plant location should be downstream the emitter position, Solat et al [11] and Alekseev et al [12] noted that the shape of the wetting front was unaffected by the inclination of the earth's surface at the beginning of irrigation. However, with ongoing water adding, the wetting front commenced to be affected by the surface slope and water loss possibility in the deep percolation.…”

Section: ‫التربة‬ ‫سطح‬ ‫انحدار‬ ‫االبتالل،‬ ‫نمط‬ ‫بالتنقيط،‬ ‫الري‬...mentioning

confidence: 99%

Devising a mathematical model for displacement estimation of the wetting pattern center from the emitter location resulting from the soil surface slope

Mahmood

Yasin²

2022

Tikrit j. eng. sci.

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This research aims to study the effect of land surface slope on the shape and size of the wetting pattern in the soil resulting from a dripping source, especially when there is a local surface runoff resulting from a water application rate higher than the soil infiltration capacity. As a result, it leads to a noticeable displacement of the center of the wetting pattern from the emitter position. The present research included finding this displacement mathematically and verifying its validity with the results of laboratory data. The studied data included 85 overlapping cases of the change in the water application rate and the slope of the soil surface for two levels of initial moisture and two soils of different textures. The results showed that the first devising equation could be used to estimate the wetting pattern center displacement from the emitter, resulting from the slope of the soil surface. The usage of the first devising equation was based on the of half the maximum horizontal surface advance (a), the maximum vertical advance under the emitter (b), and the soil surface slope, especially when the ratio (a/b) was within (0.9-1.1). The second devising equation can estimate the wetting pattern center displacement from the emitter resulting from the soil surface slope, regardless of the (a/b) ratio. That is, there was a considerable convergence between the displacement values of the center of the wetting pattern from the emitter position estimated by the first devising equation and the second devising equation when the value of (a/b) was close to one, which represents 87% of the 85 cases covered in this research.

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Simulation of drip irrigation on slope lands

Cited by 4 publications

References 9 publications

Modeling the transfer of potassium monophosphate with irrigation water in drip irrigation and sprinkling

Modeling the transfer of potassium monophosphate with irrigation water in drip irrigation and sprinkling

Experience in Implementing International Cooperation in the Field of Drip Irrigation Modelling in Conditions of Water Scarcity

Devising a mathematical model for displacement estimation of the wetting pattern center from the emitter location resulting from the soil surface slope

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