Table 27. Early Nov. Planted, Spring Hill, TN, Forage Quality

Table 27-a. By location mean forage quality of 36 cover crop varieties and 8 mixes planted in early Nov. 2020, in small plot replicated trials, at the Middle Tennessee AgResearch and Education Center, in Spring Hill, Tennessee, and evaluated from Fall 2020 to Spring 2021.
VarietyCommon NameCP¶   ADF¶   NDF¶   
AprMayAprMayAprMay
Cereals
Bates RS4Cereal Rye8.2L5.3K29.8B-D41.0AB57.1A71.4AB
ElbonCereal Rye10.1I-L5.0K27.5B-F41.9A52.9A73.7A
NF95319BCereal Rye9.0J-L5.6JK29.9B-D40.3A-C56.9A71.5AB
NF97325Cereal Rye9.0KL5.5K29.3B-D39.8A-C56.8A69.7AB
NF99362Cereal Rye8.3L5.9JK30.3BC40.4A-C57.5A71.1AB
YankeeCereal Rye12.2G-J8.4IJ22.1H-K36.9C-E41.9CD67.2BC
TN1902Wheat12.4G-J8.3IJ21.6H-K30.2IJ41.4C-E53.7E
Legumes
ParadanaClover, Balansa16.4C-F15.7EF35.8A29.9IJ40.5C-F34.6KL
TaipanClover, Balansa16.4C-F16.1E30.2B-D30.1IJ36.3D-H36.0J-L
ViperClover, Balansa17.1B-E16.9DE31.3B30.4IJ36.1E-H35.2J-L
LightningClover, Berseem19.2A-C20.3C23.4G-K25.1L30.2HI30.7L-N
DixieClover, Crimson16.8C-E19.7CD23.9F-J30.3H-J30.1HI34.3J-M
AU MeritVetch, Hairy20.7A29.3A21.1H-K25.7KL25.0I27.2N
PatagoniaVetch, Hairy20.2AB29.5A22.2H-K25.7KL26.8I27.4N
WinterKingVetch, Hairy20.9A29.1A20.9I-K25.2L25.6I27.7MN
Brassicas
VivantHybrid (turnip x rapeseed)14.7D-H13.1FG24.6E-H35.6D-F33.5GH44.2G-I
AerifiRadish15.1D-G12.3GH27.1C-G34.1D-H35.5F-H43.2G-I
Jackpot Turnip15.0D-H12.4GH24.3F-I37.5B-D34.0GH47.4FG
Mixes
Bates RS4 (20%) + Dixie (80%)Cereal Rye + Crimson Clover12.0H-K9.8HI28.3B-D41.1AB47.2B61.8CD
Bates RS4 (20%) + AU Merit (80%)Cereal Rye +
Hairy Vetch
14.4E-H19.9C28.3B-D33.6E-I45.5BC45.7GH
Bates RS4 (10%) + Dixie (90%)Cereal Rye + Crimson Clover12.6G-I11.8GH26.6D-G40.3A-C43.1BC57.1DE
Bates RS4 (10%) + AU Merit (90%)Cereal Rye +
Hairy Vetch
13.2F-H21.1C27.8B-E32.7F-J45.6BC44.2G-I
Yankee (20%) +
Dixie (80%)
Cereal Rye + Crimson Clover14.3E-H12.7G19.6K34.9D-G36.3E-G53.2EF
Yankee (20%) +
AU Merit (80%)
Cereal Rye +
Hairy Vetch
18.5A-C24.1B20.7JK29.0JK33.5GH38.4I-K
TN1902 (20%) +
Dixie (80%)
Wheat +
Crimson Clover
14.2E-H12.7G21.0I-K31.9G-J35.4F-H47.7FG
TN1902 (20%) +
AU Merit (80%)
Wheat +
Hairy Vetch
17.7B-D21.7BC22.1H-K30.3IJ34.0GH40.7H-J
Cereals
Average9.96.327.238.652.168.3
Min8.25.021.630.241.453.7
Max12.48.430.341.957.573.7
Range4.13.38.811.716.120.0
Legumes
Average18.522.126.127.831.331.6
Min16.415.720.925.125.027.2
Max20.929.535.830.440.536.0
Range4.513.814.95.315.48.9
Brassicas
Average14.912.625.335.734.444.9
Min14.712.324.334.133.543.2
Max15.113.127.137.535.547.4
Range0.50.92.93.42.04.3
Mixes
Average14.616.724.334.240.148.6
Min12.09.819.629.033.538.4
Max18.524.128.341.147.261.8
Range6.614.38.812.113.723.5
Across Groups
Average14.615.125.833.640.048.3
Standard Error3.87.74.25.510.015.4
Min8.25.019.625.125.027.2
Max20.929.535.841.957.573.7
Range12.724.516.216.832.546.6
ANOVA p-values
– Variety<0.001<0.001<0.001<0.001<0.001<0.001
– Location<0.001<0.001N.S.0.014<0.001<0.001
– Variety x Location0.0170.0840.026<0.001<0.001<0.001
† Varieties that have any MS letter in common are not significantly different (Fisher’s Protected LSD, P<0.05). Mean separation letters are highlighted in dark orange for values that are not statistically different from the highest value across all entries within a given trait. Mean values between the 50th and 75th percentile are highlighted in light orange, mean values above the 75th percentile are highlighted in dark orange. § For analysis, values transformed using (value)^2 due to non-normal distribution. Untransformed means and summary statistics are reported. ‡ For analysis, values transformed using log (value+1) due to non-normal distribution. Untransformed means and summary statistics are reported. ‡‡ Non-normal distribution, means reported ¶ Analyzed using near infrared spectroscopy (NIRS) with the appropraite calibration for each species. Reported on a 100% DM basis. †† Estimated using quality constituents from NIRS inputted into the UGA cover crop nitrogen calculator.   Table 27-b. By location mean forage quality of 36 cover crop varieties and 8 mixes planted in early Nov. 2020, in small plot replicated trials, at at the Middle Tennessee AgResearch and Education Center, in Spring Hill, Tennessee, and evaluated from Fall 2020 to Spring 2021.
VarietyCommon NameAsh¶   Fat¶   Lignin¶   
AprMayAprMayApr†May
Cereals
Bates RS4Cereal Rye1.6K1.4G2.3IJ1.8IJ3.1I-L6.3BC
ElbonCereal Rye2.8I-K1.5G2.6D-J1.8J3.4G-L6.2BC
NF95319BCereal Rye1.7K0.6G2.2J1.8IJ3.1H-L6.2B-D
NF97325Cereal Rye2.6JK1.1G2.5F-J1.7J3.4G-L6.4BC
NF99362Cereal Rye2.9I-K1.0G2.4G-J1.8IJ3.4G-K6.3BC
YankeeCereal Rye5.3F-H3.3F3.5A2.6C-F3.0J-L4.9E-G
TN1902Wheat4.0H-J3.5F3.3A-C2.5D-G2.4L4.3G
Legumes
ParadanaClover, Balansa14.5A8.9BC2.9B-F2.4F-H7.2A6.3BC
TaipanClover, Balansa12.1B9.2A-C3.0A-E2.6B-F6.0AB6.4BC
ViperClover, Balansa12.4AB8.8BC2.3H-J2.5D-G5.7BC6.3BC
LightningClover, Berseem9.1C10.6A3.1A-D3.0AB4.4C-G4.3G
DixieClover, Crimson9.0C8.4BC2.9B-F2.5C-G4.4D-H6.6B
AU MeritVetch, Hairy6.9D-F8.7BC2.9C-F2.9A-C4.9B-E4.8E-G
PatagoniaVetch, Hairy7.6C-E8.9BC2.8D-G2.8A-D4.7C-F4.6FG
WinterKingVetch, Hairy8.2CD9.5AB3.0B-E3.0A4.7C-F4.5FG
Brassicas
VivantHybrid (turnip x rapeseed)5.8FG5.3DE2.7D-I2.7A-F4.8B-E8.2A
AerifiRadish6.1E-G5.0DE2.4G-J2.1HI5.3B-D6.8B
Jackpot Turnip5.8FG5.4DE2.6E-J2.7A-E4.4D-G9.0A
Mixes
Bates RS4 (20%) + Dixie (80%)Cereal Rye + Crimson Clover4.9GH4.2EF2.7D-H1.8IJ4.1E-I6.4BC
Bates RS4 (20%) + AU Merit (80%)Cereal Rye +
Hairy Vetch
5.7F-H7.9C2.8D-H2.4E-G4.4D-G5.2EF
Bates RS4 (10%) + Dixie (90%)Cereal Rye + Crimson Clover4.5G-I5.0DE2.7D-J1.8IJ3.8E-J6.5B
Bates RS4 (10%) + AU Merit (90%)Cereal Rye +
Hairy Vetch
4.8GH8.2BC2.6E-J2.6C-F4.0E-J5.3D-F
Yankee (20%) +
Dixie (80%)
Cereal Rye + Crimson Clover4.6GH6.1D3.3AB2.4E-G2.4KL5.1E-G
Yankee (20%) +
AU Merit (80%)
Cereal Rye +
Hairy Vetch
5.3F-H9.1BC3.3A-C3.0A3.2H-L4.8E-G
TN1902 (20%) +
Dixie (80%)
Wheat +
Crimson Clover
4.7GH4.9DE3.1B-D2.2GH3.0I-L5.5C-E
TN1902 (20%) +
AU Merit (80%)
Wheat +
Hairy Vetch
5.4F-H8.2BC3.1B-D2.7A-E3.7F-J5.1E-G
Cereals
Average3.01.82.72.03.15.8
Min1.60.62.21.72.44.3
Max5.33.53.52.63.46.4
Range3.72.91.30.91.12.1
Legumes
Average10.09.12.92.75.35.5
Min6.98.42.32.44.44.3
Max14.510.63.13.07.26.6
Range7.52.20.80.62.82.3
Brassicas
Average5.95.22.62.54.98.0
Min5.85.02.42.14.46.8
Max6.15.42.72.75.39.0
Range0.30.50.30.70.82.2
Mixes
Average5.06.72.92.43.65.5
Min4.54.22.61.82.44.8
Max5.79.13.33.04.46.5
Range1.24.90.81.22.01.7
Across Groups
Average6.15.92.82.44.15.9
Standard Error3.23.10.30.41.11.1
Min1.60.62.21.72.44.3
Max14.510.63.53.07.29.0
Range12.810.01.31.34.84.7
ANOVA p-values
– Variety<0.001<0.001<0.001<0.001<0.001<0.001
– Location<0.001<0.001N.S.N.S.<0.001<0.001
– Variety x Location0.0180.048N.S.N.S.<0.001<0.001
† Varieties that have any MS letter in common are not significantly different (Fisher’s Protected LSD, P<0.05). Mean separation letters are highlighted in dark orange for values that are not statistically different from the highest value across all entries within a given trait. Mean values between the 50th and 75th percentile are highlighted in light orange, mean values above the 75th percentile are highlighted in dark orange. § For analysis, values transformed using (value)^2 due to non-normal distribution. Untransformed means and summary statistics are reported. ‡ For analysis, values transformed using log (value+1) due to non-normal distribution. Untransformed means and summary statistics are reported. ‡‡ Non-normal distribution, means reported ¶ Analyzed using near infrared spectroscopy (NIRS) with the appropraite calibration for each species. Reported on a 100% DM basis. †† Estimated using quality constituents from NIRS inputted into the UGA cover crop nitrogen calculator.
Virginia Sykes
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