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Environmental Research Journal

ISSN: Online
ISSN: Print 1994-5396
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Evaluating Optimum Nitrogen Management Associated with Production and Environmental Load of Farm-Systems in the Dahuofang Reservoir Region

Lei Liang , Ning Hu , Da Tian Jin and Lu Lu Zhao
Page: 265-270 | Received 21 Sep 2022, Published online: 21 Sep 2022

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https://doi.org/10.36478/erj.2008.265.270

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Abstract

N budgets analysis model offers a new set of tools for evaluating the N cycling in Agricultural systems. Cycling Index (CI) is also a useful tool for estimating optimal N flows in farms and Application Index (AI) as a good indicator for characterizing the N flows in farms. Using these parameters, we analyzed all farm-systems to estimate the optimal N Management for safety N pollution in ground water and maximizing N export in the Dahuofang Reservoir region. It was clearly shown the critical N application rate (chemical fertilizer + manure) was 208.4 kg N ha 1 y 1. The critical inter-system input (application N, imported food and feed N and natural supplied N) was 422.5 kg N ha 1 y 1.

How to cite this article:

Lei Liang , Ning Hu , Da Tian Jin and Lu Lu Zhao . Evaluating Optimum Nitrogen Management Associated with Production and Environmental Load of Farm-Systems in the Dahuofang Reservoir Region.
DOI: https://doi.org/10.36478/erj.2008.265.270
URL: https://www.makhillpublications.co/view-article/1994-5396/erj.2008.265.270