< UGA Irrigation Studies - Hook


Peanut Irrigation Study, 2002, Georgia Coastal Plain

Yield Comparisons:
Study:

Research Objectives:

    1. Develop irrigation management systems for consistent high yield and quality peanuts for loamy sand soils.
    2. Establish soil water requirements needed for consistent pod development.
    3. Validate peanut irrigation models (especially with respect to restricted irrigation) and evalutate envirocaster and simple Pan scheduling equipment.
Treatments:
 1.Irrigator Pro
 2.Irrigate by growth stage - Extension recommendations
 3.Easy Pan
 4.Watermarks above 25cb
 5.2" per weeks (rain & irrigation)
 6.Watermarks above 40cb except 3 weeks after pegging
 7.Watermarks above 55cb
 8.Watermakrs above 40cb
 9.No Irrigation

Basic Crop Management: PLANTED - ; HARVEST - ; 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.
Inputs
Grade Value

Observations and data sets for individual treatments (crop years) follow:
Treatment 1:
Easy Pan (Evaporation Pan) - LDN Nozzles
 Treatment 2:
Irrigator Pro - LEPA Nozzles
 Treatment 3:
Irrigator Pro - LDN Nozzles
 Treatment 4:
Growth Stage - LEPA Nozzles
 Treatment 5:
Growth Stage - LDN Nozzles
 Treatment 6:
Watermark at 28 cm or deeper depths avg greater than 40 kpa - LDN Nozzles
 Treatment 7:
Watermark at 28 cm or deeper depths avg greater than 40 kpa - LEPA Nozzles
 Treatment 8:
Two inches per week less rainfall - LDN Nozzles
 Treatment 9:
Dry Land
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 07 January 2003.