Arnold W. Schumann

Assistant Professor
Citrus Nutrition

Citrus Research and Education Center
Ridge Citrus Nitrate BMP Verification Web Site
Citrus Precision Agriculture Web Site
Personal Web Site

DEPARTMENTAL RESEARCH AREAS
Management of Nutrients, Pesticides, and Wastes

RESEARCH FOCUS
Site-specific soil and water management for improving profitability of Florida citrus and protecting the environment. Develop improvements in citrus nutrition and irrigation using precision agriculture, especially better N and water use efficiency for incorporation in Best Management Practices. Identify the causes and effective remedies for in-field soil variability which can cause spatial yield variability and low profitability per acre.

PUBLICATIONS
Alva, A.K., S. Paramasivam, T.A. Obreza, and A.W. Schumann. 2006. Nitrogen Best Management Practice for citrus trees: I. Fruit yield, quality, and leaf nutritional status. Scientia Horticulturae : 107(3):233-244.

Alva, A.K., S. Paramasivam, A. Fares, T.A. Obreza, and A.W. Schumann. 2006. Nitrogen Best Management Practice for citrus trees: II. Nitrogen fate, transport, and components of N budget. Scientia Horticulturae : 109(3):223-233.

Li, H., J.P. Syvertsen, C.W. McCoy, R.J. Stuart, and A.W. Schumann. 2006. Water stress and root injury from simulated flooding and Diaprepes abbreviatus root weevil larval feeding in citrus. Soil Science 171(2): 138-151.

Schumann, A.W., W.M. Miller, Q.U. Zaman, K.H. Hostler, S. Buchanon, and S. Cugati. 2006. Variable rate granular fertilization of citrus groves: spreader performance with single-tree prescription zones. Applied Engineering in Agriculture 22(1): 19-24.

Zaman, Q. and A.W. Schumann. 2006. Rapid estimation of citrus tree damage from hurricanes in Florida using an ultrasonic tree measurement system. HortTech 16(2): 339-344.

Zaman, Q., A.W. Schumann, and K.H. Hostler. 2006. Estimation of citrus fruit yield using ultrasonically-sensed tree size. Applied Engineering in Agriculture 22(1): 39-44.

Zaman, Q. and A.W. Schumann. 2006. Nutrient management zones for citrus based on variation in soil properties and tree performance. Precision Agriculture 7(2006): 45-63.

Complete List of Publications

CONTACT INFORMATION
Citrus Research and Education Center, University of Florida, 700 Experiment Station Road, Lake Alfred, Florida, 33850-2299
Telephone: (863) 956.1151, (863) 956.4631
email: schumaw@ufl.edu
Full Curriculum Vitae