scholarly journals SIMULATION OF THE WETTING PATTERN UNDER SURFACE DRIP IRRIGATION AND GRAVEL GROOVE

2016 ◽  
Vol 9 (4) ◽  
pp. 71-82
Author(s):  
Younis Mohammad Hassan ◽  
◽  
Ahmed Shihab Ahmed ◽  
Sabah Anwer Almasraf ◽  
◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Surface Drip Irrigation ◽  
Wetting Pattern

scholarly journals Numerical Simulation of Water Distribution with Uptake Root in Drip Irrigation using Different Soil Hydraulic Models

2021 ◽  
Vol 27 (4) ◽  
pp. 46-61
Author(s):  
Israa Saad Faraj ◽  
Maysoon Basheer Abid
Keyword(s):  
Relative Error ◽  
Drip Irrigation ◽  
Water Distribution ◽  
Sandy Loam ◽  
Irrigation System ◽  
Trickle Irrigation ◽  
Statistical Parameters ◽  
Soil Wetting ◽  
Surface Drip Irrigation ◽  
Wetting Pattern

Surface drip irrigation is one of the most conservative irrigation techniques that help control providing water directly on the soil through the emitters. It can supply fertilizer and providing water directly to plant roots by drippers. One of the essential needs for trickle irrigation nowadays is to obtain more knowledge about the moisture pattern under the trickling source for various types of soil with various discharge levels with trickle irrigation. Simulation numerical using HYDRUS-2D software, version 2.04 was used to estimate an equation for the wetted area from a single surface drip irrigation in unsaturated soil is taking into account water uptake by roots. In this paper, using two soil types were used, namely sandy loam and clay loam, with three types of plants; (corn, tomato, and sweet sorghum). The soil wetting pattern was analyzed each half an hour for three hours of irrigation time and three initial soil moisture content. Equations for wetted radius and wetted depth were predicted and evaluated by utilizing the statistical parameters for the different hydraulic soil models (Model Efficiency (EF) and Root Mean Squares Error (RMSE)). The values RMSE does not exceed 0.40 cm, and EF is greater than 0.96 for all types of soil. These values were between the values obtained from program  HYDRUS-2D and the values obtained from formulas. This shows that evolved formula can be utilized to describe the soil wetting pattern from the surface drip irrigation system. The relative error for the different hydraulic soil models was calculated and compared with Brooks and Corey's model, 1964. There was good agreement compared with different models. RMSE was 0.23 cm, while the relative error -1% and 1 for EF for wetted radius.

Simulation of soil wetting pattern with subsurface drip irrigation from line source

2006 ◽  
Vol 83 (1-2) ◽  
pp. 130-134 ◽  
Author(s):  
D.K. Singh ◽  
T.B.S. Rajput ◽  
D.K. Singh ◽  
H.S. Sikarwar ◽  
R.N. Sahoo ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Line Source ◽  
Subsurface Drip Irrigation ◽  
Soil Wetting ◽  
Subsurface Drip ◽  
Wetting Pattern

Evaluation of fertigation management impacts of surface drip irrigation on reducing nitrate leaching using numerical modeling

2019 ◽  
Vol 26 (36) ◽  
pp. 36499-36514 ◽  
Author(s):  
Nasrin Azad ◽  
Javad Behmanesh ◽  
Vahid Rezaverdinejad ◽  
Fariborz Abbasi ◽  
Maryam Navabian
Keyword(s):  
Numerical Modeling ◽  
Nitrate Leaching ◽  
Drip Irrigation ◽  
Surface Drip Irrigation

Effects of water salinity on emitter clogging in surface drip irrigation systems

2020 ◽  
Author(s):  
Zhangzhong Lili ◽  
Yang Peiling ◽  
Zheng Wengang ◽  
Li Yunkai ◽  
Liu Yu ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Water Salinity ◽  
Irrigation Systems ◽  
Surface Drip Irrigation

SIMULATION OF SOIL WATER AND SALINITY DISTRIBUTION UNDER SURFACE DRIP IRRIGATION

2013 ◽  
Vol 62 (3) ◽  
pp. 352-362 ◽  
Author(s):  
Tarek Selim ◽  
Ronny Berndtsson ◽  
Magnus Persson
Keyword(s):  
Soil Water ◽  
Drip Irrigation ◽  
Salinity Distribution ◽  
Surface Drip Irrigation

Analyzing Soil Moisture Uniformity for Surface Drip Irrigation System in Multi-layered soil

2011 ◽  
Author(s):  
Soon Goon Choi ◽  
Jin-Yong Choi ◽  
Won-Ho Nam ◽  
Eun Mi Hong ◽  
Sang-Ho Jeon
Keyword(s):  
Soil Moisture ◽  
Drip Irrigation ◽  
Irrigation System ◽  
Layered Soil ◽  
Drip Irrigation System ◽  
Surface Drip Irrigation

IMPROVING PEANUT YIELD AND GRADE WITH SURFACE DRIP IRRIGATION IN UNDULATING FIELDS

2004 ◽  
Vol 47 (1) ◽  
pp. 99-106 ◽  
Author(s):  
H. Zhu ◽  
M. C. Lamb ◽  
C. L. Butts ◽  
P. D. Blankenship
Keyword(s):  
Drip Irrigation ◽  
Surface Drip Irrigation
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