Simulation of continuous and surge flow irrigation under short field conditions

Abstract

This paper describes the simulation results for continuous and surge flow irrigation under short field conditions by the computer model SIRMOD III in order to evaluate the performance and applicability of the model for short furrows and to investigate the viability of the two-point method for calculating infiltration parameters under continuous and surge flow irrigation in short fields. These specific field conditions are found on farms smaller than 1 ha and with a furrow length of 70 m. To evaluate the model a series of experiments has been carried out in two locations in Egypt and in one site in the Netherlands. The experiments in Egypt were conducted on a field with clay soil situated at the Agriculture Experimental Station, Assiut University, and on a sandy soil field located at the Assiut University Experimental Station for Desert Land, El-Wadi El-Assuity, Assiut. The experiments in the Netherlands were carried out at the Tunnel Experimental Setting of the Irrigation and Water Engineering Group of Wageningen University. The tunnel was covered as a greenhouse to protect the investigations against the external weather conditions, especially rainfall. Two soil types were available inside the tunnel, namely sandy clay and sandy clay loam. All the experiments were carried out in furrows with a blocked end and their length and width were 70 and 0.70 m, respectively.Measured field data were used to evaluate the computer model SIRMOD III. The results of the evaluation indicated that the model can accurately simulate continuous and surge flow irrigation under short field conditions for the measured infiltration parameters. These field data are very important for a good simulation of the advance time and consequently the infiltration. The two-point method can be successfully used to obtain the infiltration parameters for continuous and surge flow irrigation under short field conditions and for different soil types.

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

“…Simulated advance times were in very good agreement with the observations, such that the average standard deviations calculated by the model were less than 7%. These results can be compared with the simulated and observed data, which were reported by Burguete et al (2009b) and Ismail and Depeweg (2005). However, the average estimation error of the water flow recession time was calculated to be about 10%.…”

“…Numerous studies have attempted to explain the effect of surge flow on improving water use efficiency and distribution uniformity (Stringham and Keller, 1979; Walker, 1984; Izuno and Podmore, 1986; Oweis and Walker, 1990; Kanber et al, 2001; Latif and Mahmood, 2004; Rodriguez et al, 2004; Ismail and Depeweg, 2005; Horst et al, 2007). Although extensive research has been carried out on furrow fertigation with continuous flow, no experimental data on furrow fertigation with surge flow have yet been reported.…”

Simulation of Irrigation Uniformity and Optimization of Irrigation Technical Parameters Based on the SIRMOD Model under Alternate Furrow Irrigation

“…Researchers have developed a series of models such as SRFR (Simulation of Border and Furrow Irrigation), SIRMOD (Surface Irrigation Simulation Model), B2D (Two‐dimensional Simulation Model of Basin) and COBASM (Contour Basin Simulation Model) (Burguete et al, ). As for the SIRMOD model, it only requires a few kinds of input data such as inflow rate and process of advance, and less measurement and observation are required with higher estimation accuracy (Abbasi et al, ; Ismail and Depeweg, ; Zhang et al, ; Valipour, ), thus the model has been widely used in recent years.…”

Effect of Moistube Fertigation on Infiltration and Distribution of Water-Fertilizer in Mixing Waste Biomass Soil

“…During intermittent fertigation (such as flood irrigation, sprinkler irrigation, and drip irrigation), the soil surface undergoes an alternate of the absorption and desorption to form a dense layer. With the increase of intermittent infiltration frequency, the soil structure tends to be compact, which reduces the infiltration capacity of fertilizer solution [57][58][59]. However, moistube fertigation achieves a continuous supply of water-fertilizer with a small flow rate; thus, the infiltration of fertilizer solution is relatively uniform.…”