Row Patterns - Tillage John Baldwin Univ. of Georgia

Topics Rotations Land Prep and Fertilization Varieties Seed Disease and Nematodes Insects Cultural Practices Weed Management

TSWV Varieties Planting Date Seeding Rate Row patterns Tillage In-furrow insecticide

Yield Losses lbs/A ($4-10/A) for each percent of row feet affected 50% affected = lb/A yield loss Early season infection worse than late Levels seen in were a real threat to survival of the peanut industry in GA

Why does severity vary from field to field? Severity affected by cultivar, planting date, plant population, at-plant insecticide, row pattern, tillage, (adjacent crops?, others?) Impact of each of these is not equal, but additive Use of multiple practices can greatly reduce severity and increase yield

Twin Vs. Single Rows Less TSWV Better Yield and Grade Quicker Canopy Closure

Seed Management Twin and Single Rows Seeding Rates Seed Quality

Seeding Rate/Acre for Various Peanut Varieties 6 seed/ft single 3 seed/ft twin

The Formula is: Seed/ft x row length seed count per pound

14 a3 b76 a3920 b$107 a 4 seed/ft row 12 a4 a76 a4130 a$177 a 3 seed/ft row 18 b3 b76 a3840 b$133 a 2 seed/ft row TSWV (%) OK (%) TSMK (%) Yield Lbs/A. Net Returns $/Acre Treatment Average Across Four LocationsLocation

Ga Green Seeding Rate Tests 6 Locations-1999 & 2000

Effect of Seeding Rate on Yield and Grade of C99-R peanut planted in Twin Row patterns at Four locations during

In-Furrow insecticides on Twin Rows Thimet 3.5 on each twin row Temik 4 on each twin row Ortene 4 oz/ 100 lb of seed.

Reduced Tillage Strip Tillage Less LCBs Less TSWV Twin Vs. Single Rows Water Conservation

Advantages for Reduced Tillage Reduces Labor Reduces Time Reduces Fuel Less Machinery wear Traps Soil Moisture Improves water availability

Challenges for Peanuts One versus Two Pass System Activation of Herbicides Plant Stands Cover Crop and Level Fields Heavy Soils Harvest Losses More Detail to Management

Strip till into Rye

Strip Till rye mulch Contil farm

Twin Row Strip Till 2001

Can you get to much mulch?

Yield of 3 Peanut Cultivars planted in Single and Twin Row Patterns from Georgia Green (13 locations) AgraTech 201 (7 locations) Georgia Hi/Ol (4 locations )

Effect of Row Pattern on Yield, Grade and TSWV incidence of 11 peanut cultivars at 13 locations for

Yield and Grade of Six peanut cultivars planted by strip till and conventional methods on twin or single rows at 13 locations TrtYieldTSMKTSWVStd/ft Single4060b72.4b20.4b4.0b Twin4320a73.4a11.6a4.3a Strip till 4340a73.5a13.3a4.1a Conv4030a72.3a18.6b4.2a

Effect of Row Pattern on Yield, Grade and TSWV incidence of 11 peanut cultivars at 13 locations for

Terms to Remember No till saves you time and labor but you better be on time with your labor If it don’t rain it don’t matter Good judgment comes from experience and experience comes from poor judgment

UGA Peanut Team