University of Georgia, Cooperative Extension Service

Transcription

1 Interseeding Heat Tolerant (HT) Bluegrass into Existing Tall Fescue Stands Trial ID: Scotts Location: Griffin Study Director: Evans, White, and Bohn Investigator: Clint Waltz General Trial Information Investigator: Clint Waltz Title: Asst. Professor Affiliation: Crop & Soil Science The University of Georgia Postal Code: Trial Location City: Griffin Trial Status: State/Prov.: Georgia Trial Reliability: Postal Code: Initiation Date: 19/Sep/2005 Country: USA Planned Completion Date: Crop Description Crop 1: FESAR Festuca arundinacea Festuca arundinacea Variety: 'Rebel Sentry' Description: Established BBCH Scale: BGRM Planting Date: Oct Planting Method: Rotary Spreader Rate, Unit: 5lbs/1000ft2 Depth, Unit: Perennial Age, Unit: Row Spacing, Unit: Spacing Within Row, Unit: Seed Bed: Soil Temperature, Unit: Soil Moisture: Emergence Date: Crop 2: POASS Poa sp. Bluegrass Variety: Heat Tolerant Description: Interseed BBCH Scale: BGRM Planting Date: September 2005 Planting Method: Drop spreader Rate, Unit: 2lbs/1000ft2 Depth, Unit: Perennial Age, Unit: Row Spacing, Unit: Spacing Within Row, Unit: Seed Bed: Soil Temperature, Unit: Soil Moisture: Emergence Date: Site and Design Plot Width, Unit: 7 FT Site Type: Home lawn Turfgrass Research Plots Plot Length, Unit: 3 FT Tillage Type: 3 HOC Replications: 3 Study Design: Split-Plot Soil Description % Sand: 56 % OM: Texture: Sandy clay % Silt: 8.0 ph: 5.9 Soil Name: % Clay: 36.8 CEC: Fert. Level: 5lbs N/1000ft2 Additional Measured Elements Element Quantity Unit Calcium 1277 lbs/acre Potassium 145 lbs/acre Magnesium lbs/acre Manganese lbs/acre Phosphorus lbs/acre Zinc lbs/acre

2 Application Description A B C Application Date: 19/Sep/ /Sep/2005 5/Oct/2005 Time of Day: 3:30pm 4:00pm 3:00pm Application Method: SPRAY Drop sprd Drop sprd Application Timing: Pre Application Placement: SURFAC SURFAC SURFAC Applied By: LW LW LW Air Temperature, Unit: 91 F 84.7 F 75.2 F % Relative Humidity: Wind Velocity, Unit: 2 MPH 3.6 MPH 7.4 MPH Dew Presence (Y/N): N N N Water Hardness: Soil Temperature, Unit: 81.5 F 81.5 F 75.3 F Soil Moisture: % Cloud Cover: Date By Notes 23/Sep/2005 LW Scalped 5/8" with sidewinder 7/Aug/ Soil Report: Soil type: Sandy Clay Loam; Sand 62%, Silt 10%, Clay 28% Water ph 6.49 Calcium 1470, Potassium 212, Magnesium 172, Manganese 44.67, Phosphorus 20.06, Zinc 4.54

3 Interseeding Heat Tolerant (HT) Bluegrass into Existing Tall Fescue Stands Trial ID: Scotts Study Director: Evans, White, and Bohn Location: Griffin Investigator: Clint Waltz Crop Code POAPR POAPR POAPR POAPR POAPR POAPR POAPR Rating Date 1/Dec/ /Mar/ /Apr/ /May/2006 8/Sep/2006 6/Nov/ /Nov/2006 Rating Data Type TQ TQ TQ TQ TQ TQ TQ Rating Unit Assessed By FCW/KE FCW/KE FCW/KE FCW/KE FCW/KE FCW/KE FCW/KE Days After Last Applic Trt-Eval Interval 73 DA-A 192 DA-A 218 DA-A 218 DA-A 354 DA-A 413 DA-A 436 DA-A 1 No Cultivation 5.3 abc 6.7 a-d 6.0 a-e 7.2 a-d 4.0 f 4.7 e 5.5 def 2 No Cultivation 5.0 cd 6.3 bcd 6.0 a-e 6.7 d 5.3 a-e 5.7 a-d 6.3 abc 3 No Cultivation 5.2 bcd 6.8 abc 6.0 a-e 7.7 abc 5.8 ab 5.7 a-d 6.2 a-d 4 No Cultivation 5.2 bcd 6.7 a-d 6.3 a-d 7.7 abc 6.0 a 5.7 a-d 6.5 ab (30%) 5 Core Aerification (1X) 5.7 a 6.5 a-d 6.3 a-d 7.7 abc 4.5 c-f 5.5 b-e 5.7 c-f 6 Core Aerification (1X) 5.2 bcd 7.0 ab 6.5 abc 7.2 a-d 5.7 abc 6.0 abc 6.0 bcd 7 Core Aerification (1X) 5.3 abc 6.3 bcd 6.3 a-d 7.7 abc 5.3 a-e 5.2 cde 5.8 b-e 8 Core Aerification (1X) 5.5 ab 7.0 ab 6.8 a 7.3 a-d 5.3 a-e 5.8 a-d 6.0 bcd (30%) 9 Core Aerification (2X) 5.3 abc 6.5 a-d 6.5 abc 7.0 bcd 3.7 f 5.3 b-e 5.8 b-e 10 Core Aerification (2X) 4.8 d 6.2 cd 5.5 de 7.5 a-d 4.3 def 5.7 a-d 6.5 ab 11 Core Aerification (2X) 4.8 d 6.5 a-d 5.8 b-e 7.5 a-d 4.7 b-f 5.0 de 5.8 b-e 12 Core Aerification (2X) 5.3 abc 6.5 a-d 5.7 cde 6.8 cd 4.0 f 5.3 b-e 5.7 c-f (30%) 13 Verticle Mow 5.7 a 6.7 a-d 6.0 a-e 7.0 bcd 4.2 ef 4.7 e 5.2 ef 14 Verticle Mow 5.0 cd 6.0 d 5.3 e 6.8 cd 4.5 c-f 5.8 a-d 5.5 def 15 Verticle Mow 4.8 d 6.2 cd 5.8 b-e 7.2 a-d 5.5 a-d 5.2 cde 5.7 c-f 16 Verticle Mow 5.0 cd 6.0 d 5.3 e 7.2 a-d 5.3 a-e 5.0 de 5.0 f (30%) 17 Scalp 5.7 a 6.8 abc 6.7 ab 7.7 abc 4.2 ef 5.0 de 5.7 c-f 18 Scalp 5.3 abc 6.5 a-d 6.3 a-d 7.7 abc 4.8 a-f 6.0 abc 6.2 a-d 19 Scalp 5.0 cd 6.5 a-d 6.2 a-e 8.0 a 5.3 a-e 5.5 b-e 6.0 bcd 20 Scalp 5.2 bcd 6.3 bcd 5.8 b-e 7.8 ab 4.5 c-f 5.5 b-e 6.0 bcd (30%) 21 Roundup 0.25 lb ai/a 5.5 ab 7.2 a 6.7 ab 7.7 abc 4.3 def 5.5 b-e 5.8 b-e 22 Roundup 0.25 lb ai/a 5.2 bcd 6.5 a-d 6.0 a-e 7.3 a-d 6.0 a 6.5 a 6.8 a 23 Roundup 0.25 lb ai/a 4.8 d 6.7 a-d 5.8 b-e 7.8 ab 6.0 a 6.2 ab 6.2 a-d

4 Crop Code POAPR POAPR POAPR POAPR POAPR POAPR POAPR Rating Date 1/Dec/ /Mar/ /Apr/ /May/2006 8/Sep/2006 6/Nov/ /Nov/2006 Rating Data Type TQ TQ TQ TQ TQ TQ TQ Rating Unit Assessed By FCW/KE FCW/KE FCW/KE FCW/KE FCW/KE FCW/KE FCW/KE Days After Last Applic Trt-Eval Interval 73 DA-A 192 DA-A 218 DA-A 218 DA-A 354 DA-A 413 DA-A 436 DA-A 24 Roundup 0.25 lb ai/a 5.2 bcd 6.5 a-d 5.8 b-e 7.2 a-d 5.8 ab 6.0 abc 6.5 ab (30%) LSD (P=.05) Standard Deviation CV Grand Mean Replicate F Replicate Prob(F) Treatment F Treatment Prob(F) Means followed by same letter do not significantly differ (P=.05, LSD) Mean separations are based on the complete error term.

5 Crop Code POAPR POAPR POAPR POAPR POAPR POAPR FESAR Rating Date 30/Mar/ /May/ /Nov/2006 8/Sep/2006 6/Nov/ /Nov/ /Jul/2006 Rating Data Type Color Color Color Density Density Density Plant Count Rating Unit % % % Number 1-Assessed By FCW/KE FCW/KE FCW/KE FCW/KE FCW/KE FCW/KE TC Days After Last Applic Trt-Eval Interval 192 DA-A 218 DA-A 436 DA-A 354 DA-A 413 DA-A 436 DA-A 218 DA-A 1 No Cultivation 7.0 ab 7.0 cde 5.8 cde 53 f-i 82 c-f 88 bc 15 a-g 2 No Cultivation 6.8 ab 7.2 b-e 6.5 a-d 82 ab 90 abc 95 ab 12 c-g 3 No Cultivation 7.2 a 7.5 a-d 6.5 a-d 77 abc 88 a-d 95 ab 13 b-g 4 No Cultivation 7.0 ab 7.2 b-e 7.0 a 78 ab 88 a-d 95 ab 12 d-g (30%) 5 Core Aerification (1X) 6.7 ab 7.7 abc 6.0 b-e 55 e-i 77 f 87 c 18 abc 6 Core Aerification (1X) 7.3 a 7.3 a-e 6.5 a-d 83 a 90 abc 95 ab 9 g 7 Core Aerification (1X) 6.7 ab 7.8 ab 6.0 b-e 75 a-d 78 ef 92 abc 14 a-g 8 Core Aerification (1X) 7.2 a 7.2 b-e 6.5 a-d 70 a-f 90 abc 95 ab 13 b-g (30%) 9 Core Aerification (2X) 6.5 ab 6.7 e 6.2 a-e 40 i 83 c-f 90 abc 19 ab 10 Core Aerification (2X) 6.7 ab 7.2 b-e 7.0 a 65 b-g 93 ab 95 ab 13 b-g 11 Core Aerification (2X) 6.5 ab 7.7 abc 6.5 a-d 72 a-e 85 b-f 92 abc 14 b-g 12 Core Aerification (2X) 6.7 ab 7.0 cde 6.8 ab 55 e-i 88 a-d 90 abc 16 a-f (30%) 13 Verticle Mow 6.8 ab 7.3 a-e 5.7 de 43 hi 78 ef 88 bc 19 ab 14 Verticle Mow 6.5 ab 6.8 de 6.5 a-d 58 d-h 88 a-d 88 bc 10 fg 15 Verticle Mow 7.0 ab 7.3 a-e 6.2 a-e 75 a-d 87 a-e 92 abc 11 efg 16 Verticle Mow 6.3 b 7.5 a-d 5.5 e 55 e-i 83 c-f 90 abc 11 efg (30%) 17 Scalp 7.0 ab 7.7 abc 6.0 b-e 45 hi 77 f 87 c 21 a 18 Scalp 7.0 ab 7.5 a-d 6.7 abc 75 a-d 83 c-f 93 abc 11 efg 19 Scalp 7.2 a 8.0 a 6.0 b-e 78 ab 87 a-e 95 ab 10 fg 20 Scalp 6.8 ab 7.7 abc 6.3 a-e 60 c-h 83 c-f 93 abc 11 efg (30%) 21 Roundup 0.25 lb ai/a 7.2 a 7.7 abc 6.3 a-e 48 ghi 80 def 90 abc 18 a-d 22 Roundup 0.25 lb ai/a 7.0 ab 7.3 a-e 7.0 a 78 ab 95 a 97 a 17 a-e 23 Roundup 0.25 lb ai/a 7.0 ab 7.3 a-e 6.2 a-e 77 abc 90 abc 95 ab 16 a-f 24 Roundup 0.25 lb ai/a 6.5 ab 7.7 abc 6.8 ab 75 a-d 88 a-d 92 abc 15 a-g (30%) LSD (P=.05) Standard Deviation CV Grand Mean Replicate F Replicate Prob(F) Treatment F Treatment Prob(F) Means followed by same letter do not significantly differ (P=.05, LSD) Mean separations are based on the complete error term.

6 Crop Code POAPR Rating Date 31/Jul/2006 Rating Data Type Plant Count Rating Unit Number Assessed By TC Days After Last Applic. 299 Trt-Eval Interval 218 DA-A 1 No Cultivation 0 g 2 No Cultivation 6 c-g 3 No Cultivation 4 d-g 4 No Cultivation 3 efg (30%) 5 Core Aerification (1X) 1 fg 6 Core Aerification (1X) 5 d-g 7 Core Aerification (1X) 3 efg 8 Core Aerification (1X) 3 efg (30%) 9 Core Aerification (2X) 0 fg 10 Core Aerification (2X) 6 c-g 11 Core Aerification (2X) 4 d-g 12 Core Aerification (2X) 2 efg (30%) 13 Verticle Mow 1 fg 14 Verticle Mow 12 ab 15 Verticle Mow 8 a-e 16 Verticle Mow 11 abc (30%) 17 Scalp 0 g 18 Scalp 10 a-d 19 Scalp 8 a-e 20 Scalp 14 a (30%) 21 Roundup 0.25 lb ai/a 0 fg 22 Roundup 0.25 lb ai/a 6 b-f 23 Roundup 0.25 lb ai/a 3 efg 24 Roundup 0.25 lb ai/a 2 efg (30%) LSD (P=.05) 6.2 Standard Deviation 3.7 CV Grand Mean 4.61 Replicate F Replicate Prob(F) Treatment F Treatment Prob(F) Means followed by same letter do not significantly differ (P=.05, LSD) Mean separations are based on the complete error term.