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ARS Home » Midwest Area » Columbia, Missouri » Cropping Systems and Water Quality Research » Research » Publications at this Location » Publication #421096

Research Project: Innovative Cropping System Solutions for Sustainable Production on Spatially Variable Landscapes

Location: Cropping Systems and Water Quality Research

Title: Updating fertilizer recommendations in Missouri based on crop response to variable rate nitrogen fertilizer application

Author
item RAETHER, TORY - University Of Missouri
item DAVIS, MORGAN - University Of Missouri
item Abendroth, Lori
item Ransom, Curtis
item KAUR, GURPREET - University Of Missouri

Submitted to: ASA-CSSA-SSSA Annual Meeting Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 11/11/2024
Publication Date: 11/11/2024
Citation: Raether, T., Davis, M., Abendroth, L.J., Ransom, C.J., Kaur, G. 2024. Updating fertilizer recommendations in Missouri based on crop response to variable rate nitrogen fertilizer application [abstract]. ASA, CSSA, SSA International Annual Meeting, November 10-13, 2024, San Antonio, Texas. Paper No. 162021. Available: https://scisoc.confex.com/scisoc/2024am/meetingapp.cgi/Paper/162021

Interpretive Summary:

Technical Abstract: Current fertilizer recommendations throughout the state of Missouri do not account for the influence of the biology of nitrogen processes on agricultural fields. The process by which nitrogen moves throughout the soil varies based on factors such as cover crop usage, landscape position, and crop rotation. The purpose of this research is to reduce uncertainties that are associated with Missouri’s nitrogen fertilizer recommendations and highlight the role underlying soil health plays in management strategies. In this study, six rates of nitrogen fertilizer from 0-210 lb/ac were applied across four field sites throughout the central region of Missouri. The objective of this study was to evaluate the effect of inherent soil health, landscape position, and cover crops on nitrogen use efficiency.