Petiole Sampling as a Tool for In-Season Nitrogen Management in Cotton

Akash Shah, Hardeep Singh , Lakesh Sharma, Ethan Carter, and

Release Date: 7/9/2025

DOI: 10.32473/edis-ag489-2025

Agriculture

Abstract

This publication aims to guide cotton producers, Extension agents, crop advisors, and consultants on the correct method of petiole sampling for nitrate-nitrogen analysis and interpretation of petiole nitrate-nitrogen test results, and also discusses ways in which monitoring petiole nitrate-nitrogen concentration can be used as a tool for effective in-season N management in cotton. Written by Akash Shah, Hardeep Singh, Lakesh Sharma, Ethan Carter, and Guilherme Morata, and published by the UF/IFAS Department of Agronomy, June 2025.

About this Publication

This document is SS-AGR-491, a publication of the Department of Agronomy, UF/IFAS Extension. Original publication date June 2025. Visit the EDIS website at https://edis.ifas.ufl.edu for the currently supported version of this publication. © 2025 UF/IFAS. This publication is licensed under CC BY-NC-ND 4.0.

How to Cite

Shah, A., Singh, H., Sharma, L., Carter, E., & Morata, G. (2025). Petiole Sampling as a Tool for In-Season Nitrogen Management in Cotton. EDIS, 2025(4). https://doi.org/10.32473/edis-ag489-2025

Authors

Akash Shah

student

University of Florida

graduate research assistant, Department of Agronomy, UF/IFAS West Florida Research and Education Center, Jay, FL

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Hardeep Singh

Contact

Specialist

University of Florida

assistant professor, cropping systems, Department of Agronomy, UF/IFAS West Florida Research and Education Center, Jay, FL

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Lakesh Sharma

Specialist

University of Florida

assistant professor, soil fertility and sustainable agriculture, UF/IFAS Department of Soil, Water, and Ecosystem Sciences, Gainesville, FL

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Ethan Carter

Specialized Agent

University of Florida

regional specialized Extension agent III, crop IPM, UF/IFAS Extension Jackson County, Marianna, FL

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Guilherme Morata

former Extension agent, agriculture, UF/IFAS Extension Santa Rosa County, Milton, FL

Publication #SS-AGR-491

Disclaimers

The use of trade names in this publication is solely for the purpose of providing specific information. UF/IFAS does not guarantee or warranty the products named, and references to them in this publication do not signify our approval to the exclusion of other products of suitable composition.

All chemicals should be used in accordance with directions on the manufacturer's label.