Table 15.  Roundup Ready Alfalfa Seeding Rate
 Bixby, Irrigated, 2006 
Crude Protein
Harvest Date: 6/23/2006 Harvest Date:8/10/2006 Harvest Date:10/5/2006
1st Cut Forage Quality 2nd Cut Forage Quality 3rd Cut Forage Quality
Seed Rate (lbs/acre) Herbicide Treatment Seed Rate (lbs/acre) Herbicide Treatment Seed Rate (lbs/acre) Herbicide Treatment
Roundup Beyond None mean Roundup Beyond None mean Roundup Beyond None mean
  Crude Protein (%)   Crude Protein (%)   Crude Protein (%)
           
8 19.1 16.7 15.8 17.2 8 14.3 13.1 10.5 12.6 8 16.6 14.2 8.4 13.0
12 19.0 18.0 16.3 17.7 12 14.3 12.9 13.6 13.1 12 17.0 14.6 11.1 14.2
16 18.6 18.5 15.6 17.5 16 14.3 13.4 12.0 13.2 16 16.9 14.4 9.1 13.5
20 18.5 18.0 16.8 17.8 20 15.5 15.4 12.1 14.3 20 16.7 15.7 11.6 14.6
mean 18.8 17.8 16.1 17.6 mean 14.6 13.7 12.0 13.4 mean 16.8 14.7 10.0 13.8
                             
Interaction seeding rate X herbicide - NS Interaction seeding rate X herbicide - NS Interaction seeding rate X herbicide - NS
CV = 7.1%   CV = 12.3%   CV = 11.5%  
5% LSD for comparing   5% LSD for comparing   5% LSD for comparing  
herbicide means: 0.9   herbicide means: 1.2   herbicide means: 1.2  
seeding rate means: 1.0 ns seeding rate means: 1.4ns   seeding rate means: 1.3ns  
           
Design: Split plot w/ herbicides as main plots Design: Split plot w/ herbicides as main plots Design: Split plot w/ herbicides as main plots
Method: Carter Harvester & F.G.I. Lab. Method: Carter Harvester & F.G.I. Lab. Method: Carter Harvester & F.G.I. Lab.
Plot size:  5' X 30' planted   Plot size:  5' X 30' planted   Plot size:  5' X 30' planted  
  1m X 5m harvested     1m X 5m harvested     1m X 5m harvested  
No. of Reps: 4   No. of Reps: 4   No. of Reps: 4  
Exp No. 681   Exp No. 681   Exp No. 681  
Date planted: 4/5/06   Date planted: 4/5/06   Date planted: 4/5/06  
     
Table 16.  Roundup Ready Alfalfa Seeding Rate
 Bixby, Irrigated, 2006 
Total Digestive Nutrient
Harvest Date: 6/23/2006 Harvest Date:8/10/2006 Harvest Date:10/5/2006
1st Cut Forage Quality 2nd Cut Forage Quality 3rd Cut Forage Quality
Seed Rate (lbs/acre) Herbicide Treatment Seed Rate (lbs/acre) Herbicide Treatment Seed Rate (lbs/acre) Herbicide Treatment
Roundup Beyond None mean Roundup Beyond None mean Roundup Beyond None mean
  Total Digestive Nutrient (%)   Total Digestive Nutrient (%)   Total Digestive Nutrient (%)
           
8 61.7 62.4 59.5 61.2 8 57.3 57.3 56.7 57.1 8 55.3 50.5 48.1 51.3
12 62.0 62.9 60.6 61.8 12 57.5 57.6 57.5 57.5 12 54.9 52.5 49.4 52.3
16 62.8 62.5 59.0 61.4 16 57.4 57.6 57.2 57.4 16 54.4 52.8 49.1 52.1
20 62.8 63.0 60.5 62.1 20 59.1 58.4 58.9 58.8 20 55.2 53.1 50.5 52.9
mean 62.3 62.7 59.9 61.6 mean 57.8 57.7 57.6 57.7 mean 54.9 52.2 49.3 52.1
                             
Interaction seeding rate X herbicide - NS Interaction seeding rate X herbicide - NS Interaction seeding rate X herbicide - NS
CV = 2.0%   CV = 2.8%   CV = 3.7%  
5% LSD for comparing   5% LSD for comparing   5% LSD for comparing  
herbicide means: 0.9   herbicide means: 1.2ns   herbicide means: 1.4  
seeding rate means: 1.0 ns seeding rate means: 1.3ns   seeding rate means: 1.6ns   
           
Design: Split plot w/ herbicides as main plots Design: Split plot w/ herbicides as main plots Design: Split plot w/ herbicides as main plots
Method: Carter Harvester & F.G.I. Lab. Method: Carter Harvester & F.G.I. Lab. Method: Carter Harvester & F.G.I. Lab.
Plot size:  5' X 30' planted   Plot size:  5' X 30' planted   Plot size:  5' X 30' planted  
  1m X 5m harvested     1m X 5m harvested     1m X 5m harvested  
No. of Reps: 4   No. of Reps: 4   No. of Reps: 4  
Exp No. 681   Exp No. 681   Exp No. 681  
Date planted: 4/5/06   Date planted: 4/5/06   Date planted: 4/5/06  
     
Table 17.  Roundup Ready Alfalfa Seeding Rate
 Bixby, Irrigated, 2006 
Relative Feed Value
Harvest Date: 6/23/2006 Harvest Date: 8/10/2006 Harvest Date: 10/5/2006
1st Cut Forage Quality  2nd Cut Forage Quality  3rd Cut Forage Quality
Seed Rate (lbs/acre) Herbicide Treatment Seed Rate (lbs/acre) Herbicide Treatment Seed Rate (lbs/acre) Herbicide Treatment
Roundup Beyond None mean Roundup Beyond None mean Roundup Beyond None mean
  Relative Feed Value   Relative Feed Value   Relative Feed Value
           
8 180.0 190.0 166.3 178.8 8 151.8 146.3 129.8 142.6 8 147.3 121.0 99.5 122.6
12 183.5 192.0 174.3 183.3 12 153.8 146.3 143.3 147.8 12 143.0 128.3 107.8 126.3
16 188.5 200.0 153.0 180.5 16 153.3 145.0 130.8 143.0 16 139.5 129.5 98.8 122.6
20 190.5 203.0 172.8 188.8 20 163.8 160.0 145.3 156.3 20 143.0 132.0 112.8 129.3
mean 185.6 196.3 166.6 182.8 mean 155.6 149.4 137.3 147.4 mean 143.2 127.7 104.7 125.2
                             
Interaction seeding rate X herbicide - NS Interaction seeding rate X herbicide - NS Interaction seeding rate X herbicide - NS
CV = 6.5%   CV = 8.8%   CV = 8.3%  
5% LSD for comparing   5% LSD for comparing   5% LSD for comparing  
herbicide means: 8.6   herbicide means: 9.4   herbicide means: 7.4  
seeding rate means: 9.9ns   seeding rate means: 10.8   seeding rate means: 8.6ns  
           
Design: Split plot w/ herbicides as main plots Design: Split plot w/ herbicides as main plots Design: Split plot w/ herbicides as main plots
Method: Carter Harvester & F.G.I. Lab. Method: Carter Harvester & F.G.I. Lab. Method: Carter Harvester & F.G.I. Lab.
Plot size:  5' X 30' planted   Plot size:  5' X 30' planted   Plot size:  5' X 30' planted  
  1m X 5m harvested     1m X 5m harvested     1m X 5m harvested  
No. of Reps: 4   No. of Reps: 4   No. of Reps: 4  
Exp No. 681   Exp No. 681   Exp No. 681  
Date planted: 4/5/06   Date planted: 4/5/06   Date planted: 4/5/06  
     
Table 18.  Roundup Ready Alfalfa Seeding Rate
 Bixby, Irrigated, 2006 
Milk lbs/ton
Harvest Date: 6/23/2006 Harvest Date: 8/10/2006 Harvest Date: 10/5/2006
1st Cut Forage Quality  2nd Cut Forage Quality  3rd Cut Forage Quality
Seed Rate (lbs/acre) Herbicide Treatment Seed Rate (lbs/acre) Herbicide Treatment Seed Rate (lbs/acre) Herbicide Treatment
Roundup Beyond None mean Roundup Beyond None mean Roundup Beyond None mean
  Milk lbs/ton   Milk lbs/ton   Milk lbs/ton
           
8 2935.0 2984.0 2734.5 2884.5 8 2465.3 2497.5 2455.3 2472.7 8 2363.3 1964.8 1788.3 2038.8
12 2959.5 3036.5 2837.3 2944.4 12 2479.8 2520.5 2523.0 2507.8 12 2341.3 2142.0 1894.3 2125.8
16 3025.8 3011.8 2686.3 2907.9 16 2477.5 2510.5 2501.3 2496.4 16 2299.0 2164.0 1878.0 2113.7
20 3023.3 3037.3 2828.3 2962.9 20 2612.5 2575.8 2633.5 2607.3 20 2355.3 2201.0 1979.5 2178.6
mean 2985.9 3017.4 2771.6 2924.9 mean 2508.8 2526.1 2528.3 2521.0 mean 2339.7 2117.9 1885.0 2114.2
                             
Interaction seeding rate X herbicide - NS Interaction seeding rate X herbicide - NS Interaction seeding rate X herbicide - NS
CV = 3.7%   CV = 5.1%   CV = 7.3%  
5% LSD for comparing   5% LSD for comparing   5% LSD for comparing  
herbicide means: 78.4   herbicide means: 92.5ns   herbicide means: 110.9  
seeding rate means: 90.6ns   seeding rate means: 106.8ns   seeding rate means: 128.0ns  
           
Design: Split plot w/ herbicides as main plots Design: Split plot w/ herbicides as main plots Design: Split plot w/ herbicides as main plots
Method: Carter Harvester & F.G.I. Lab. Method: Carter Harvester & F.G.I. Lab. Method: Carter Harvester & F.G.I. Lab.
Plot size:  5' X 30' planted   Plot size:  5' X 30' planted   Plot size:  5' X 30' planted  
  1m X 5m harvested     1m X 5m harvested     1m X 5m harvested  
No. of Reps: 4   No. of Reps: 4   No. of Reps: 4  
Exp No. 681   Exp No. 681   Exp No. 681  
Date planted: 4/5/06   Date planted: 4/5/06   Date planted: 4/5/06  
     
Table 19.  Roundup Ready Alfalfa Seeding Rate
 Bixby, Irrigated, 2006 
Relative Forage Qualtiy
Harvest Date: 6/23/2006 Harvest Date: 8/10/2006 Harvest Date: 10/5/2006
1st Cut Forage Quality 2nd Cut Forage Quality 3rd Cut Forage Quality
Seed Rate (lbs/acre) Herbicide Treatment Seed Rate (lbs/acre) Herbicide Treatment Seed Rate (lbs/acre) Herbicide Treatment
Roundup Beyond None mean Roundup Beyond None mean Roundup Beyond None mean
  Relative Forage Quality      Relative Forage Quality      Relative Forage Quality   
           
8 183.0 190.8 161.5 178.4 8 134.5 133.8 122.0 130.1 8 130.3 100.3 81.8 104.1
12 185.3 195.0 173.3 184.5 12 136.5 134.5 134.3 135.1 12 125.5 110.5 90.3 108.8
16 192.5 201.3 150.5 181.4 16 135.5 132.3 123.8 130.5 16 122.8 111.3 85.3 106.4
20 194.8 202.5 171.5 189.6 20 149.0 145.8 139.3 144.7 20 127.0 114.3 95.8 112.3
mean 188.9 197.4 164.2 183.5 mean 138.9 136.6 129.8 135.1 mean 126.4 109.1 88.3 107.9
                             
Interaction seeding rate X herbicide - NS Interaction seeding rate X herbicide - NS Interaction seeding rate X herbicide - NS
CV = 7.9%   CV = 10.1%   CV = 10.9%  
5% LSD for comparing   5% LSD for comparing   5% LSD for comparing  
herbicide means: 10.5   herbicide means: 9.8ns   herbicide means: 8.5  
seeding rate means: 12.1ns   seeding rate means: 11.4ns   seeding rate means: 9.8ns  
           
Design: Split plot w/ herbicides as main plots Design: Split plot w/ herbicides as main plots Design: Split plot w/ herbicides as main plots
Method: Carter Harvester & F.G.I. Lab. Method: Carter Harvester & F.G.I. Lab. Method: Carter Harvester & F.G.I. Lab.
Plot size:  5' X 30' planted   Plot size:  5' X 30' planted   Plot size:  5' X 30' planted  
  1m X 5m harvested     1m X 5m harvested     1m X 5m harvested  
No. of Reps: 4   No. of Reps: 4   No. of Reps: 4  
Exp No. 681   Exp No. 681   Exp No. 681  
Date planted: 4/5/06   Date planted: 4/5/06   Date planted: 4/5/06