row patterns - tillage

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Row Patterns - Tillage. John Baldwin Univ. of Georgia. Topics. Rotations Land Prep and Fertilization Varieties Seed Disease and Nematodes Insects Cultural Practices Weed Management. Varieties Planting Date Seeding Rate. Row patterns Tillage In-furrow insecticide. TSWV. - PowerPoint PPT Presentation

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  • Row Patterns - Tillage

    John BaldwinUniv. of Georgia

  • TopicsRotationsLand Prep and Fertilization Varieties SeedDisease and NematodesInsectsCultural PracticesWeed Management

  • TSWVVarieties

    Planting Date

    Seeding RateRow patterns

    Tillage

    In-furrow insecticide

  • Yield Losses20-40 lbs/A ($4-10/A) for each percent of row feet affected50% affected = 1000-2000 lb/A yield lossEarly season infection worse than lateLevels seen in 95-97 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 additiveUse of multiple practices can greatly reduce severity and increase yield

  • Twin Vs. Single RowsLess TSWVBetter Yield and GradeQuicker Canopy Closure

  • Seed ManagementTwin and Single RowsSeeding RatesSeed Quality

  • Seeding Rate/Acre for Various Peanut Varieties6 seed/ft single3 seed/ft twin

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

  • Ga Green Seeding Rate Tests6 Locations-1999 & 2000

    Sd/Ft

    Yield

    TSMK

    OK

    2

    4190a

    75.5

    3.85

    3

    4500b

    76.1

    3.58

    4

    4380ab

    76.2

    3.43

    NS

    NS

  • Effect of Seeding Rate on Yield and Grade of C99-R peanut planted in Twin Row patterns at Four locations during 1999-2001

    Seed/ft

    Yield

    TSMK

    4

    4090b

    73.8

    6

    4405a

    73.8

    8

    4390a

    74.3

    p

  • In-Furrow insecticides on Twin Rows

    Thimet 3.5 on each twin rowTemik 4 on each twin rowOrtene 4 oz/ 100 lb of seed .

  • Reduced TillageStrip TillageLess LCBsLess TSWVTwin Vs. Single RowsWater Conservation

  • Advantages for Reduced TillageReduces Labor

    Reduces Time

    Reduces FuelLess Machinery wearTraps Soil Moisture

    Improves water availability

  • Challenges for PeanutsOne versus Two Pass SystemActivation of HerbicidesPlant StandsCover Crop and Level FieldsHeavy SoilsHarvest LossesMore 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 1999-2001Georgia Green (13 locations)AgraTech 201 (7 locations)Georgia Hi/Ol (4 locations)

  • Sheet1

    VarietyYieldTSMKOKTSWVStd

    Ga GreenS4240*71.3716.1***5.3

    T462571.76.710.24.9

    3855.9

    AT 201S4250*71.76.522.8**4.7

    T476072.56.213.74.8

    5109.1

    Ga Hi/OlS480576.21.423.64.3

    T502577.21.512.54.3

    22011.1

    *p

  • Effect of Row Pattern on Yield, Grade and TSWV incidence of 11 peanut cultivars at 13 locations for 1999-2001

    Conv

    Yield

    TSMK

    OK

    TSWV

    Std

    Single

    4350

    72.4

    4.1

    27.1

    3.4

    Twin

    4840

    73.6

    3.8

    16.5ns

    4.3

    490

    1.2

    .3ns

    .6

    *p

  • Effect of Row Pattern on Yield, Grade and TSWV incidence of 11 peanut cultivars at 13 locations for 1999-2001

    Strip Till

    Yield

    TSMK

    OK

    TSWV

    Std

    Single

    3940

    73.1

    3.6

    20.2

    3.7

    Twin

    4190

    73.4

    3.6

    13.1

    4.2

    250

    .3

    0ns

    7.1ns

    *p

  • Yield and Grade of Six peanut cultivars planted by strip till and conventional methods on twin or single rows at 13 locations 99-2001

  • Effect of Row Pattern on Yield, Grade and TSWV incidence of 11 peanut cultivars at 13 locations for 1999-2001

    Yield

    TSMK

    OK

    TSWV

    Std

    Single

    4150

    72.7

    3.8

    23.7

    3.6

    Twin

    4520*

    73.5**

    3.4

    14.7**

    4.3

    370

    .8

    .4ns

    9.0

    *p

  • Terms to RememberNo till saves you time and labor but you better be on time with your labor

    If it dont rain it dont matter

    Good judgment comes from experience and experience comes from poor judgment

  • UGA Peanut Team

    www.ugapeanuts.comwww.gaweed.com

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