Acta Scientiarum-Biological Sciences, ( ISI ), Volume (35), No (3), Year (2013-4) , Pages (327-334)

Title : ( Assessing nitrogen flow in production and utilization cycle of wheat and maize as a tool to monitor N loss in Iran )

Authors: Alireza Koocheki , Mehdi Nassiri Mahallati , hamed mansouri , roholla moradi ,

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Increasing resource use efficiency is crucial for enhancement of agricultural productions and reducing environmental hazards. For this purpose, improvement of Nitrogen use efficiency is an effective approach. Not only N loss occurs in field but also in processing course of food utilization. The objective of this study was to evaluate N loss and efficiency from production to consumption for wheat and maize. For this purpose, data for the amount of applied nitrogen, acreage, yields, amount of returned residue were collected and a proportion of N allocated to different source of food or feed was also traced. Results showed that total N harvested by wheat and maize were 387 and 81.7 kt and N use efficiency for the same crops were 25 and 60%, respectively. Efficiency of N harvested by the crops was different based on the path used. Total N use efficiency in food production cycle for wheat and maize were 14.2 and 7.6%, respectively. Higher efficiency of N was observed in plant food production compared with animal feed. In general, N use efficiency in plant food production system was about 13 times higher than that of feed. For decreasing N loss in food production system, efficiency should be increased in the field and processing courses.

Keywords

, N use efficiency, N loss, nutrient management,
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@article{paperid:1035673,
author = {Koocheki, Alireza and Nassiri Mahallati, Mehdi and Mansouri, Hamed and Moradi, Roholla},
title = {Assessing nitrogen flow in production and utilization cycle of wheat and maize as a tool to monitor N loss in Iran},
journal = {Acta Scientiarum-Biological Sciences},
year = {2013},
volume = {35},
number = {3},
month = {April},
issn = {1679-9283},
pages = {327--334},
numpages = {7},
keywords = {N use efficiency; N loss; nutrient management; fertilizer.},
}

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%0 Journal Article
%T Assessing nitrogen flow in production and utilization cycle of wheat and maize as a tool to monitor N loss in Iran
%A Koocheki, Alireza
%A Nassiri Mahallati, Mehdi
%A Mansouri, Hamed
%A Moradi, Roholla
%J Acta Scientiarum-Biological Sciences
%@ 1679-9283
%D 2013

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