SOIL MOISTURE DISTRIBUTION IN SANDY SOIL UNDER DRIP IRRIGATION SYSTEM USING NEUTRON SCATTERING METHOD

2011 ◽  
Vol 28 (1) ◽  
pp. 68-86
Author(s):  
Kh. Yousef ◽  
E. M. Abo gabal ◽  
M. E. Galal ◽  
R. W. El-Gendy ◽  
M. A. Elmoneam
Keyword(s):  
Soil Moisture ◽  
Neutron Scattering ◽  
Sandy Soil ◽  
Drip Irrigation ◽  
Irrigation System ◽  
Moisture Distribution ◽  
Scattering Method ◽  
Drip Irrigation System ◽  
Soil Moisture Distribution

scholarly journals Evaluation of Uniformity Coefficient and Soil Moisture Distribution under Drip Irrigation System

2019 ◽  
pp. 1-9
Author(s):  
A. Selvaperumal ◽  
E. Sujitha ◽  
I. Muthuchamy
Keyword(s):  
Soil Moisture ◽  
Drip Irrigation ◽  
Goodness Of Fit ◽  
Irrigation System ◽  
Block Design ◽  
Moisture Distribution ◽  
Drip Irrigation System ◽  
Uniformity Coefficient ◽  
Rate Of Increase ◽  
Soil Moisture Distribution

Drip irrigation system uniformity can preserve a higher crop yield and deplete the initial investment of cost. The experiment was conducted at precision farming development centre research farm, Tamil Nadu Agricultural University, Coimbatore, to evaluate the uniformity coefficient and soil moisture distribution under drip irrigation system. The experiment was designed under Factorial Randomized Block Design (FRBD) which included three fertigation levels 80%, 100% and 120% of Recommended Dose of fertilizers which were replicated thrice. The Coefficient of Variation (CV) was obtained as 0.0207 per cent kept at a constant pressure of 50.66 kPa, Statistical Uniformity (SU) as 97 per cent and Coefficient of Uniformity (CU) as 0.9518. As the elapsed time increased, the rate of increase of wetted zone diameter decreased. A high R2 value of 0.97 shows the goodness of fit for the horizontal movement. The mean soil moisture distribution 39.2 per cent was observed below the emitter at the depth of 10 cm immediately after irrigation.

scholarly journals Evaluation of Uniformity Coefficient and Soil Moisture Distribution under Drip Irrigation System

2019 ◽  
pp. 1-9
Author(s):  
A. Selvaperumal ◽  
E. Sujitha ◽  
I. Muthuchamy
Keyword(s):  
Soil Moisture ◽  
Drip Irrigation ◽  
Goodness Of Fit ◽  
Irrigation System ◽  
Block Design ◽  
Moisture Distribution ◽  
Drip Irrigation System ◽  
Uniformity Coefficient ◽  
Rate Of Increase ◽  
Soil Moisture Distribution

Drip irrigation system uniformity can preserve a higher crop yield and deplete the initial investment of cost. The experiment was conducted at precision farming development centre research farm, Tamil Nadu Agricultural University, Coimbatore, to evaluate the uniformity coefficient and soil moisture distribution under drip irrigation system. The experiment was designed under Factorial Randomized Block Design (FRBD) which included three fertigation levels 80%, 100% and 120% of Recommended Dose of fertilizers which were replicated thrice. The Coefficient of Variation (CV) was obtained as 0.0207 per cent kept at a constant pressure of 50.66 kPa, Statistical Uniformity (SU) as 97 per cent and Coefficient of Uniformity (CU) as 0.9518. As the elapsed time increased, the rate of increase of wetted zone diameter decreased. A high R2 value of 0.97 shows the goodness of fit for the horizontal movement. The mean soil moisture distribution 39.2 per cent was observed below the emitter at the depth of 10 cm immediately after irrigation.

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