Spread and Economics of Micro Irrigation in India—Evidences from Nine States

2016 ◽  
pp. 69-90
Keyword(s):  
Micro Irrigation

scholarly journals Concentration of injetion solution and its effects on soil and on yield of fertirrigated banana cv. Terra Maranhão

2014 ◽  
Vol 34 (6) ◽  
pp. 1104-1113 ◽  
Author(s):  
Eugênio F. Coelho ◽  
Torquato M. de Andrade Neto ◽  
Damiana L. Barros
Keyword(s):  
Electrical Conductivity ◽  
Soil Solution ◽  
Irrigation Water ◽  
Urea Concentration ◽  
Injection Solution ◽  
Combined Application ◽  
Saturation Extract ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Micro Irrigation

The Fertigation is the combined application of water and nutrients to a crop. It can be adapted to all types of agricultural crops. The objective of this study was to evaluate the effect of urea concentration in irrigation water on electrical conductivity of the soil solution and saturation extract along the first cycle of banana cv. Terra Maranhão. The experiment followed a completely randomized design with six treatments and ten replications. Treatments regarded for using three urea concentrations (1.0; 2.5 and 4.0 g L-1) in irrigation water applied by two micro irrigation systems (microsprinkler and drip). Results showed that there was a linear elevation of electrical conductivity of saturation extract and soil solution with the increase on concentration of urea in the injection solution. Urea should be used under concentrations up to 2.5 g L-1 in irrigation water without causing increase on electric conductivity of soil solution and saturation extract, considering 1.1 dS m-1 as the tolerated value for the crop. Nitrate in the soil solution increased significantly with the increase of urea concentration in the injection solution. The maximum concentration of nitrate in the soil occurred for 4,0 g L-1 concentration of the injection solution.

Policy Options For Better Implementation Of Micro Irrigation: Case Study Of India

2017 ◽  
pp. 37-50
Author(s):  
K. Palanisami ◽  
K. Krishna Reddy ◽  
S. Raman ◽  
T. Mohanasundari
Keyword(s):  
Policy Options ◽  
Micro Irrigation
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