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Author Spotlight: Understanding Riverine Nitrogen Impacts and Primary Productivity for Effective Nutrient Management

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Published on: July 14, 2023

Integrated Crop-Livestock Systems for Nitrogen Management: A Multi-Scale Spatial Analysis.

Suraj Ghimire¹, Jingjing Wang¹, John R Fleck^1,2

¹Department of Economics, University of New Mexico, Albuquerque, NM 87131, USA.

Animals : an Open Access Journal From MDPI

|January 9, 2021

Summary

Integrated crop-livestock systems face nutrient imbalances due to scale increases. Farm-level analysis shows insufficient onsite land for nitrogen assimilation, suggesting inter-farm integration is key for sustainable nutrient management.

Keywords:

integrated crop-livestock system manure nitrogen nutrient management spatial analysis

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Area of Science:

Agricultural Science
Environmental Science
Spatial Analysis

Background:

Livestock operations have grown significantly, increasing food production but disrupting the link between crop nutrient needs and livestock nutrient availability.
This disconnect leads to environmental and public health issues due to nutrient mismanagement.

Purpose of the Study:

To develop a theoretical framework for multi-scale spatial analysis of integrated crop-livestock systems.
To quantify nitrogen production from dairy farms in New Mexico and assess its assimilation capacity in croplands and grasslands.

Main Methods:

A theoretical framework for multi-scale spatial analysis was developed.
Nitrogen production from dairy farms in New Mexico was quantified.
Assimilation potential of croplands and grasslands was assessed at farm, county, and watershed scales.

Main Results:

Farm-level assessments revealed that dairy operations lack sufficient onsite croplands to assimilate their produced nitrogen.
County and watershed level analyses indicated that integrating nitrogen management across multiple farms can effectively assimilate excess nutrients.

Conclusions:

The study highlights the multi-spatial nature of nutrient management challenges in integrated crop-livestock systems.
Inter-farm integration presents a viable strategy for managing excess nitrogen and improving environmental sustainability.