Hartzler, Robert G.

Owen, Micheal D. K.

Pringnitz, Brent A.

English

Owen, Micheal

Hartzler, Robert

Pringnitz, Brent

Digital Repository @ Iowa State University (ISU)

 Site Description Page 1Iowa State UniversityEvaluation of mesotrione (Callisto) herbicide systemsTrial ID: KC-Syngenta-01        Study Dir.: PringnitzLocation: Kanawha             Investigator: Owen/Hartzler/Pringnitz                          CROP AND WEED DESCRIPTIONWeed Code Common Name Scientific Name1. SETFA FOXTAIL, GIANT SETARIA FABERI HERRM.2. ABUTH VELVETLEAF ABUTILON THEOPHRASTI MEDIK.3. CHEAL LAMBSQUARTERS, COMMON CHENOPODIUM ALBUM L.4. AMATU WATERHEMP, TALL AMARANTHUS TUBERCULATOS (MOQ.) J.SAUERCrop  1: corn                                         Variety: Golden Harvest 8562Planting Date: May-14-01            Planting Method: John Deere 7001Rate: 29900   P/A           Depth: 1.75  inRow Spacing: 30    inchSoil Temperature: 67    F  Soil Moisture: dry                               SITE AND DESIGNPlot Width, Unit: 10     FT     Plot Length, Unit: 30     FT     Reps: 3Tillage Type: conventional till      Study Design: RANDOMIZED COMPLETE BLOCK Previous  Crops Previous Pesticides Year1. soybeans Roundup Ultra 2000                                 MAINTENANCEField Prep./Maintenance: 2 passes field cultivator - Spring 2001Fertilization: corn experiment areas received 250 lbs of 18-46-0 and 249 lbs of 82-0-0 in Fall of 2000.                               SOIL DESCRIPTION               % OM:   6.4        Texture:     clay loam                 pH:   6.95       Soil Name:   Canisteo, NicolletClosest Weather Station: Kanawha S Farm                  Distance: 1      Unit: mi                           APPLICATION DESCRIPTIONA BApplication Date:    May-14-01 Jun-11-01Time of Day:         2 pm     10 am    Application Method:  TerraPro TerraPro Application Timing:  PRE      Post     Applic. Placement:   Broadcast BroadcastAir Temp., Unit:     87   F 85   F% Relative Humidity: 30       59       Wind Velocity, Unit: 17   mph 10   mph Dew Presence (Y/N):  N NSoil Temp., Unit:    67   F 76   FSoil Moisture:                dry      % Cloud Cover:       0        0                                CROP STAGE AT EACH APPLICATIONA BCrop 1 Code, Stage: corn  planting corn  V3         Height, Unit: 0    inch 6    inch Site Description Page 2Iowa State University                        WEED STAGE AT EACH APPLICATIONA BWeed 1 Code, Stage: SETFA          SETFA 1"         Density, Unit:           2    FT2  Weed 2 Code, Stage: ABUTH          ABUTH 0.5-1.0"   Density, Unit:           3    FT2  Weed 3 Code, Stage: CHEAL          CHEAL 0.5-1.5"   Density, Unit:           117  FT2  Weed 4 Code, Stage: AMATU          AMATU 0.5-1.0"   Density, Unit:           174  FT2                              APPLICATION EQUIPMENTA BAppl. Equipment:     TerraPro TerraPro Operating Pressure:  32       32       Nozzle Type:         flat-fan flat-fan Nozzle Size:         TT11002  TT11002  Nozzle Spacing, Unit: 20   inch 20   inchBoom Length, Unit:   10   ft  10   ft  Boom Height, Unit:   15   in  15   in  Ground Speed, Unit:  2.6  mph 2.6  mph Carrier:             water    water    Spray Volume, Unit:  20  20  Propellant:          CO2      CO2      Tank Mix (Y/N):      Y Y AOV Means Table Page 1Iowa State UniversityEvaluation of mesotrione (Callisto) herbicide systemsTrial ID: KC-Syngenta-01        Study Dir.: PringnitzLocation: Kanawha             Investigator: Owen/Hartzler/PringnitzWeed Code SETFA ABUTH CHEAL AMATU Corn SETFA ABUTH CHEAL AMATU CornRating Data Type control control control control crop injury control control control control yieldRating Unit % % % % % % % % % bu/acreRating Date Jun-11-01 Jun-11-01 Jun-11-01 Jun-11-01 Jun-11-01 Jul-10-01 Jul-10-01 Jul-10-01 Jul-10-01 Oct-26-01Trt Treatment Rate Grow ApplNo. Name Rate Unit Stg Code1 check 0.0 b 0.0 c 0.0 d 0.0 b 0.0 a 0.0 b 0.0 c 0.0 b 0.0 b 112.27 b2 Dual II Magnum 2 PT/A pre A 97.7 a 94.3 ab 99.0 a 99.0 a 3.3 a 96.3 a 99.0 a 98.3 a 99.0 a 161.10 aCallisto 6 FL OZ/A pre A3 Dual II Magnum 2 PT/A pre A 99.3 a 99.1 a 99.3 a 97.7 a 2.5 a 97.2 a 98.6 a 99.2 a 98.7 a 183.73 aCallisto 6 FL OZ/A pre AAtrazine 1 LB A/A pre A4 Bicep Lite II Magnum 2.2 QT/A pre A 99.0 a 85.0 ab 99.0 a 99.0 a 1.7 a 99.0 a 85.0 b 96.0 a 96.0 a 167.70 a5 Dual II Magnum 2 PT/A pre A 97.7 a 75.0 b 78.3 bc 89.7 a 0.0 a 99.0 a 96.3 a 99.0 a 99.0 a 165.90 aCallisto 3 FL OZ/A post BCOC 1 % V/V post B28% UAN 2.5 % V/V post B6 Bicep Lite II Magnum 2.2 QT/A pre A 99.0 a 91.7 ab 89.7 ab 99.0 a 0.0 a 97.7 a 97.7 a 99.0 a 97.7 a 172.03 aCallisto 3 OZ/A post BCOC 1 % V/V post B28% UAN 2.5 % V/V post B7 Dual II Magnum 2 PT/A pre A 97.7 a 83.3 ab 73.3 bc 96.3 a 0.0 a 96.0 a 99.0 a 99.0 a 99.0 a 164.70 aCallisto 3 OZ/A post BAtrazine 0.25 LB A/A post BCOC 1 % V/V post B28% UAN 2.5 % V/V post B8 Outlook 21 FL OZ/A pre A 97.7 a 88.0 ab 91.3 ab 99.0 a 0.0 a 99.0 a 94.7 a 99.0 a 97.7 a 178.77 aMarksman 3.5 PT/A post B9 Dual II Magnum 2 PT/A pre A 99.0 a 80.0 ab 68.3 c 94.7 a 0.0 a 99.0 a 92.0 a 99.0 a 97.7 a 174.23 aNorthstar 5 OZ/A post BNIS 0.25 % V/V post BAMS 3 LB/A post BLSD (P=.05) 2.61 12.67 13.39 7.70 3.00 4.05 4.88 3.22 3.94 20.824Standard Deviation 1.50 7.28 7.70 4.43 1.72 2.33 2.80 1.85 2.26 11.968CV 1.72 9.41 9.92 5.14 206.56 2.67 3.31 2.11 2.6 7.28Means followed by same letter do not significantly differ (P=.05, Student-Newman-Keuls)

Evaluation of mesotrione (Callisto) herbicide systems

https://dr.lib.iastate.edu/handle/20.500.12876/92574

Evaluation of mesotrione (Callisto) herbicide systems

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