Volume 14, Issue 51 (spring 2010)                   JWSS 2010, 14(51): 1-14 | Back to browse issues page

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Navabian M, Liaghat A. Evaluating the Effect of Water and Nutrient Management on Surface Water and Environment Pollution . JWSS. 2010; 14 (51) :1-14
URL: http://jstnar.iut.ac.ir/article-1-1205-en.html
Abstract:   (25443 Views)
Environment pollution is an important problem in the world. In agriculture irrigation, drainage and fertilization activities cause water resource and environmental pollution by effecting on solute, nutrient and sediment transport. Combined methods of water and nutrient management could consider in pollution transport controlling that reducing runoff and deep percolation, providing opportunity for solute infiltration, reducing sediment transport even economic and easy usage. In this research, affect of two different management in irrigation (cutback and continues) and fertilization (solid and fertigation) on nutrient loss was evaluated. Comparing nitrate, phosphor and potassium loss in different management explicate cutback flow with no uniform solid distribution of fertilizer is more useful to prevent nutrient loss. Because of similar results, increasing in fertilizer distribution in furrow length and easy usage between nitrate losses in six managements, show cutback flow with three proceeding solid, fertigation and fertigation (with 1/4, 1/2 and 1/4 ratio) fertilization was recommended replacement of cutback flow with three proceeding solid fertilization.
Full-Text [PDF 318 kb]   (3006 Downloads)    
Type of Study: Research | Subject: Ggeneral
Received: 2010/09/14

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