Optimization of Water and N Fertilizer Consumption in Maize Using Marginal Analysis Theory

Document Type : Original Article

Authors

1 Master Science Student, Department of Irrigation and Drainage Engineering, Aburaihan College, University of Tehran., Tehran., Iran

2 - Professor of Irrigation and Drainage Engineering Department, Aburaihan College, University of Tehran., Tehran., Iran

3 Assisstant Professor of Crop Science and Plant Breeding Department, Aburaihan College, University of Tehran., Tehran., Iran

4 Research Expert of Irrigation and Drainage Engineering Department, Aburaihan College, University of Tehran., Tehran., Iran

Abstract

Deficiency of irrigation water in irrigated agriculture as the most deterrent factor and nitrogen Deficiency of as one of the main limiting factors of plant growth, is Presented. So management of water and nitrogen fertilizer for agricultural production because of Deficiency of resources and environmental problems and prevent loss of capital, should be considered. The purpose of this study was to optimize the water use efficiency and nitrogen fertilizer using marginal analysis theory for silage maize in Pakdasht located in the southeastern region of Tehran. The tests in the summer of 1393 in the form of split plot randomized complete blocks design with four treatments for water and four treatments for nitrogen fertilizer in three replications was used. The results showed that the maximum water use efficiency at ET = 839 mm and fertilizer consumption 384 kg per hectare happens while the global maximum yield at ET = 1020 mm and fertilizer consumption 365 kg per hectare is achieved and by 17.74% of water saving only 9.73 percent of the product is reduced. So when we face with restriction of water sources, water use efficiency must be goal and if there are no restrictions for water supply, with the goal of maximizing yield the values optimal irrigation and fertilization be specified. As well as the water supply should not exceed from 1020 mm.

Keywords

References

سپاسخواه،ع.ر.، عزیزیان،ا.، توکلی،ع.ر و زیبایی،م. 1385. بهینه‌سازی اقتصادی آب و کود نیتروژن برای گندم در مقادیر مختلف بارندگی (در منطقه مراغه)، مجله علوم و فنون کشاورزی و منابع طبیعی. 10.4: 45-57.
Debaek,P and Aboudrare,A. 2004. Adaptations of crop manage to water-limited environments. European Journal of Agronomy. 21.4: 433–446.
Doltra,J and Mu˜noz,P. 2010. Simulation of nitrogen leaching from a fertigated crop rotation in a Mediterranean climate using the EU-Rotate N and Hydrus-2D models. Agricultural Water Management. 97: 277–285.
English,M and Raja,S.N. 1990. Review perspective on deficit irrigation. Agricultural Water Management. 32: 1-14.
Fan,T., Stewart,B.A., Payne,W.A., Wang,Y., Song,S., Luo,J., Robinson,C.A. 2005. Supplemental irrigation and water: yield relationships for plasticulture crops in the loess plateau of China. Agronomy Journal. 97: 177–188.
Fereres,E.M and Soriano,A. 2007. Deficit irrigation for reducing agricultural water use. Journal of Experimental Botany. 58.2: 147–159.
Gheysari,M., Mirlatifi,S. M., Bannayan,M., Homaee,M., Hoogenboom,G. 2009. Interaction of water and nitrogen on maize grown for silage. agricultural water management. 96: 809–821.
Hexem,R.W and  Heady,E.O. 1978. Water production functions for irrigated agriculture. Iowa State University Press, Ames, IA, 215.
Lemaire,G., Jeuffroy,M.H and Gastal,F. 2008. Diagnosis tool for plant and crop N status in vegetative stage Theory and practices for crop N management. European Journal of  Agronomy. 28: 614–624.
Liu,W.Z., Hunsaker,D.J., Li,Y.S., Xie,X.Q and Wall,G.W. 2002. Interrelations of yield, evapotranspiration, and water use efficiency from marginal analysis of water production functions. Agricultural Water Management. 56: 143–151.
Liu,W.Z and Zhang,X.C. 2007. Optimizing water and fertilizer input using an elasticity index: A case study with maize in the loess plateau of china. Field Crops Research. 100: 302–310.
Pl´enet,D and Lemaire,G. 2000. Relationships between dynamics of nitrogen uptake and dry matter accumulation in maize crops. Plant Soil. 216: 65–82.
 
 
Iranian Journal of Irrigation & Drainage
Volume 10, Issue 2 - Serial Number 56
May and June 2016
Pages 221-229

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