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ARS Home » Southeast Area » Auburn, Alabama » Soil Dynamics Research » Research » Publications at this Location » Publication #408525

Research Project: Conservation Systems to Improve Production Efficiency, Reduce Risk, and Promote Sustainability

Location: Soil Dynamics Research

Title: Characterizing soil N supply to adjust N fertilizer rate applied to cotton

item Franzluebbers, Alan
item FARMAHA, BHUPINDER - Clemson University
item WILSON, BRADLEY - University Of Missouri
item SINTIM, HENRY - University Of Georgia
item RUIZ DIAZ, DORIVAR - Kansas State University
item ROBERTS, TRENTON - University Of Arkansas
item RAPER, TYSON - University Of Tennessee
item PIERALISI, BRIAN - Mississippi State University
item MCKNIGHT, BENJAMIN - Texas A&M University
item MAEDA, MURILO - Texas Agrilife Extension
item LEWIS, KATIE - Texas Tech University
item HOWE, JULIE - Texas A&M University
item HEISER, JAMES - University Of Missouri
item FRAME, WILLIAM - Virginia Tech
item Balkcom, Kipling
item ARNALL, BRIAN - Oklahoma State University
item ALE, SRINIVASULU - Texas Agrilife Extension
item MORGAN, GAYLON - Cotton, Inc

Submitted to: ASA-CSSA-SSSA Annual Meeting Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 9/12/2022
Publication Date: 11/10/2022
Citation: Franzluebbers, A.J., Farmaha, B.S., Wilson, B.R., Sintim, H., Ruiz Diaz, D.A., Roberts, T.L., Raper, T.B., Pieralisi, B., Mcknight, B., Maeda, M.M., Lewis, K.L., Howe, J.A., Heiser, J., Frame, W.H., Balkcom, K.S., Arnall, B.D., Ale, S., Morgan, G.D. 2022. Characterizing soil N supply to adjust N fertilizer rate applied to cotton [ABSTRACT]. ASA-CSSA-SSSA Annual Meeting Abstracts. Baltimore, MD. Nov. 6-9, 2022.

Interpretive Summary:

Technical Abstract: Soil fertility conditions are important for optimizing field crop production. Characterization of soil organic C and N fractions along with routine soil chemical analyses has not been common, but we explored these conditions to see if they might affect cotton lint yield and quality responses to N fertilizer application. Field trials were established by a collaborative research group in Texas, Oklahoma, Arkansas, Missouri, Mississippi, Georgia, South Carolina, North Carolina, and Virginia. Soil was sampled at depths of 0-10, 10-30, and 30-60 cm at most sites and at 60-90 cm at some sites in spring 2020, 2021, and 2022. Our hypothesis was that surface soil organic N and deep-profile inorganic N might alter yield response characteristics among sites. Total, particulate, and mineralizable C and N fractions were determined, along with soil pH, cation exchange capacity, base saturation, and extractable P, K, cations, and anions.