Citrus Nutrient Management

Jamie D. Burrow, Tripti Vashisth, Mongi Zekri, Stephen H. Futch, and Arnold Schumann

This document is HS1292, one of a series of the Horticultural Sciences Department, UF/IFAS Extension. Original publication date May 2017.

Thomas A. Obreza, Mongi Zekri, and David V. Calvert

Tripti Vashisth, Davie Kadyampakeni, and Jamie D. Burrow

This is a two-sided poster. To improve production of huanglongbing (HLB) affected trees, nutrition, irrigation, and soil pH should be considered together, because each can influence the efficacy of the others in overcoming the effects of HLB on tree performance.

Tripti Vashisth, Jamie D. Burrow, Davie Kadyampakeni, and Rhuanito S. Ferrarezi

Single-page guide to citrus leaf sampling procedures with additional suggestions for HLB-affected trees and guidelines for interpreting orange tree leaf nutrient analysis.

Mongi Zekri and Thomas A. Obreza

Mongi Zekri and Thomas A. Obreza

Mongi Zekri and Thomas A. Obreza

Rhuanito Soranz Ferrarezi

Mongi Zekri and Thomas A. Obreza

Rao Mylavarapu, Kelley Hines and Thomas Obreza

SL-279 presents the details of several types of diagnostic tests for nutrient status and management in commercial citrus groves in Florida, as well as sample submission procedures. Includes references and a copy of the sample submission form (in the pdf version).

Tripti Vashisth and Chris Oswalt

Mongi Zekri and Thomas A. Obreza

Mongi Zekri, Thomas Obreza, and Arnold Schumann

Tripti Vashisth, Megan M. Dewdney, yJamie D. Burrow

Huanglongbing (HLB) is a bacterial disease that is spread by an insect, the Asian citrus psyllid. This 2-page fact sheet explains how to tell the difference between HLB symptoms and symptoms from nutrient deficiencies.

Thomas A. Obreza, Mongi Zekri, Edward A. Hanlon, Kelly Morgan, Arnold Schumann, and Robert Rouse

Stephen H. Futch and David P. H. Tucker

Mongi Zekri, Thomas A. Obreza, Robert Koo, and Fernando M. Alferez

Arnold Schumann, Laura Waldo, Perseveranca Mungofa, and Chris Oswalt

A UF/IFAS numbered peer reviewed Fact Sheet. in support of UF/IFAS Extension program: Plant Systems

Mongi Zekri, Arnold Schumann, Tripti Vashisth, Davie M. Kadyampakeni, Kelly T. Morgan, Brian Boman, Brian J. Boman, Muhammad A. Shahid, Thomas Obreza, yThomas A. Obreza

2026–2029 Florida Citrus Production Guide (Citrus Production Fundamentals).

Kelly T. Morgan, Davie M. Kadyampakeni, Mongi Zekri, Arnold Schumann, Tripti Vashisth, Muhammad A. Shahid, Thomas Obreza, yThomas A. Obreza

2026–2029 Florida Citrus Production Guide (Citrus Production Fundamentals).

Mongi Zekri, Arnold Schumann, Tripti Vashisth, Davie Kadyampakeni, Kelly Morgan, Brian Boman, and Tom Obreza

A UF/IFAS numbered Fact Sheet. Published by Plant Systems

Andrew Krajewski, Timothy Ebert, Arnold Schumann, and Laura Waldo

Sometimes, the fruit on citrus trees will split open, making the fruit unmarketable; splitting can aid fungal and insect pests that subsequently damage fruit. A physiological disorder, pre-harvest fruit splitting begins with nutrient imbalances at flowering. Nutrient deficiencies weaken the rind, causing it to crack if interior parts of the fruit expand too quickly. Symptoms are only visible after it is too late to avoid the problem, but mitigation is still possible. Our goal is to define the problem and suggest management tactics for growers and Extension personnel to avoid or mitigate pre-harvest fruit splitting.