Maize Irrigation Study, 1983, Georgia Coastal Plain

Yield Comparisons:
Study:

Research Objectives:

    1. Evaluate changes in growth habits including emergence, survival, LAI, and height at various times, due to seed treatments with BASF 106.
    2. Measure differences in water consumption by corn in treated and untreated plots.
Treatments:
 1.Basf rate 1 - 0.0025g/bu
 2.Basf rate 2 - 0.005g/bu
 3.Control
 4.Basf rate 3 - 0.01g/bu
 5.Basf rate 4 - 0.02g/bu
 6.Alachlor

Basic Crop Management: PLANTED - 23 Mar 1983 (rows 0.6m apart); HARVEST - 09 Aug 1983 (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:
 Basf rate 1 - 0.0025g/bu
  • Irrigation Dates and Amounts: Text Format;
  • Phenology: Emergence - 07 Apr 1983; Pollination (R2) - 21 Jun 1983; Maturity (Black layer) - 11 Jul 1983
  • Stand Count:
  • Soil Water Pressure Observations: Tensiometer & Gypsum Block
  • Yield Corn Grain, 15.5% moisture, T/ha: Average - 7.67; Individual plots - 7.03, 7.89, 7.53, 8.22 Text File
Treatment 2:
 Basf rate 2 - 0.005g/bu
  • Irrigation Dates and Amounts: Text Format;
  • Phenology: Emergence - 07 Apr 1983; Pollination (R2) - 21 Jun 1983; Maturity (Black layer) - 11 Jul 1983
  • Stand Count:
  • Soil Water Pressure Observations: Tensiometer & Gypsum Block
  • Yield Corn Grain, 15.5% moisture, T/ha: Average - 7.83; Individual plots - 8.13, 7.36, 7.97, 7.87 Text File
Treatment 3:
 Control
  • Irrigation Dates and Amounts: Text Format;
  • Phenology: Emergence - 07 Apr 1983; Pollination (R2) - 21 Jun 1983; Maturity (Black layer) - 11 Jul 1983
  • Stand Count:
  • Soil Water Pressure Observations: Tensiometer & Gypsum Block
  • Yield Corn Grain, 15.5% moisture, T/ha: Average - 7.97; Individual plots - 6.82, 8.87, 8.30, 7.88 Text File
Treatment 4:
 Basf rate 3 - 0.01g/bu
  • Irrigation Dates and Amounts: Text Format;
  • Phenology: Emergence - 07 Apr 1983; Pollination (R2) - 21 Jun 1983; Maturity (Black layer) - 11 Jul 1983
  • Stand Count:
  • Soil Water Pressure Observations: Tensiometer & Gypsum Block
  • Yield Corn Grain, 15.5% moisture, T/ha: Average - 8.23; Individual - 9.48, 7.45, 7.99, 7.99 Text File
Treatment 5:
 Basf rate 4 - 0.02g/bu
  • Irrigation Dates and Amounts: Text Format;
  • Phenology: Emergence - 07 Apr 1983; Pollination (R2) - 21 Jun 1983; Maturity (Black layer) - 11 Jul 1983
  • Stand Count:
  • Soil Water Pressure Observations: Tensiometer & Gypsum Block
  • Yield Corn Grain, 15.5% moisture, T/ha: Average - 7.31; Individual plots - 7.38, 6.93, 8.12, 6.80Text File
Treatment 6:
 Alachlor
  • Irrigation Dates and Amounts: Text Format;
  • Phenology: Emergence - 07 Apr 1983; Pollination (R2) - 21 Jun 1983; Maturity (Black layer) - 11 Jul 1983
  • Stand Count:
  • Soil Water Pressure Observations: Tensiometer & Gypsum Block
  • Yield Corn Grain, 15.5% moisture, T/ha: Average - 8.13; Individual plots - 8.10, 7.71, 8.72, 7.97 Text File
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.