Maize Irrigation Study, 1982, Georgia Coastal Plain

Yield Comparisons:
Study:

Research Objective: Compare the effectiveness of widely differing methods of irrigation scheduling for supplying the water needs of high yielding corn.
Treatments:
 1.Lambert model, 50% ad
 2.Tensiometer - deep (45-60 cm), 0.3 bar
 3.Control - Tensiometer - shallow (20-30 cm), 0.3 bar
 4.Tensiometer - shallow (20-30 cm), 0.3 bar, 2 day delay
 5.No irrigation

Basic Crop Management: PLANTED - 10 Mar 1982 (rows 0.9m apart); HARVEST - 12-14 Jul 1982 (2-row grain combine); TILLAGE - Moldboard Plow (30 cm deep plus smoothing and bed shaping), wheel traffic controlled at 1.2 m centers; FERTILIZATION - Typical Extension Recommended Rate; WEED & PEST CONTROL: Typical Extension Recommendations.
Chronological Treatment and Observation Details

Observations and data sets for individual treatments (crop years) follow:
Treatment 1:
  Lambert model, 50% ad.
 Treatment 2:
  Tensiometer - deep (45-60 cm), 0.3 bar
 Treatment 3:
 Control - Tensiometer - shallow (20-30 cm), 0.3 bar
 Treatment 4:
  Tensiometer - shallow (20-30 cm), 0.3 bar, 2 day delay
 Treatment 5:
  No irrigation
For more information on the study and its interpretation contact:
Dr. Jim Hook Professor, Soil and Water Management
Crop and Soil Sciences Department and NESPAL
The University of Georgia, College of Agricultural and Environmental Sciences
P.O. Box 748, Tifton, GA 31793-0748
e-mail: jimhook@tifton.cpes.peachnet.edu

Page developed by James E. Hook, Amanda Richards, and Linsey Forlow.
Last Modified on 29 June 2000.