Table 21. Early Nov. Planted, Knoxville, TN, Cover and Height

Table 21. By location mean cover and height of 36 cover crop varieties and 8 mixes planted in early Nov. 2020, in small plot replicated trials, at the East Tennessee AgResearch and Education Center, in Knoxville, Tennessee, and evaluated from Fall 2020 to Spring 2021.
VarietyCommon NameCanopy Cover (%)       Height (in)       
DecFebApr§May‡‡DecFebAprMay
Cereals
Bates RS4Cereal Rye39A-D45A92A-E97AB5BC4B30A64B
ElbonCereal Rye44A43AB87B-F95A-C6AB3C22B63B
NF95319BCereal Rye42A-C42AB92A-E97AB6AB5A31A64B
NF97325Cereal Rye40A-D42AB90A-E95A-C5AB5A30A62B
NF99362Cereal Rye36A-E39A-D95A-C97AB6AB5A29A66AB
YankeeCereal Rye43AB38A-D83D-G90A-D6A3BC10C-E32E-G
TN1902Wheat35A-E38A-D87B-F87A-E4CD3BC13CD26G-I
Legumes
ParadanaClover, Balansa24H-J19H12L57H3E3C4GH8K
TaipanClover, Balansa19J20GH15KL58H3E3C3H8K
ViperClover, Balansa19J19H23JK82C-F3E3C4GH11JK
LightningClover, Berseem21IJ22GH30J75E-G3E3C5E-H9JK
DixieClover, Crimson24G-J22GH42I78D-F3E3C4F-H15J
AU MeritVetch, Hairy27E-J27E-H93A-D100A4DE3C9C-F23I
PatagoniaVetch, Hairy30E-I27E-H93A-D100A4D3C9C-F25HI
WinterKingVetch, Hairy25G-J20GH90A-E98AB4D3C8D-G24I
Brassicas
VivantHybrid (turnip x rapeseed)25F-J27E-H75GH63GH3E3C22B37C-E
AerifiRadish24H-J26F-H78F-H70F-H3E4B21B31F-H
Jackpot Turnip28E-I22GH70H75E-G3E3C23B40C
Mixes
Bates RS4 (20%) + Dixie (80%)Cereal Rye + Crimson Clover27E-J34B-E90A-E85B-E5AB3BC30A64AB
Bates RS4 (20%) + AU Merit (80%)Cereal Rye +
Hairy Vetch
34B-F41A-C98A100A6AB5A29A68AB
Bates RS4 (10%) + Dixie (90%)Cereal Rye + Crimson Clover27E-J33C-F87B-F88A-E5AB4BC29A66AB
Bates RS4 (10%) + AU Merit (90%)Cereal Rye +
Hairy Vetch
30D-H32D-F98A100A6A4BC31A70A
Yankee (20%) +
Dixie (80%)
Cereal Rye + Crimson Clover28E-J28E-G85C-G90A-D6A3C11CD32E-G
Yankee (20%) +
AU Merit (80%)
Cereal Rye +
Hairy Vetch
35A-E31D-F97AB100A6AB3C14C39CD
TN1902 (20%) +
Dixie (80%)
Wheat +
Crimson Clover
28E-I25F-H82E-G88A-E4CD3C13CD27G-I
TN1902 (20%) +
AU Merit (80%)
Wheat +
Hairy Vetch
33C-G32D-F97AB100A4CD3C14C34D-F
Cereals
Average40418994542454
Min35388387431026
Max44459597653166
Range971210222140
Legumes
Average2322508133615
Min191912573338
Max30279310043925
Range118824310618
Brassicas
Average26257469332236
Min24227063332131
Max28277875342340
Range4581201210
Mixes
Average30329294542150
Min27258285431127
Max354198100653170
Range8161715222044
Across Groups
Average30317687431739
Standard Error782714111022
Min191912573338
Max444598100653170
Range25268743322863
ANOVA p-values
– Variety<0.001<0.001<0.001<0.001<0.001<0.001<0.001
– Location<0.001<0.001<0.0010.0030.003<0.001<0.001
– Variety x LocationN.S.<0.001<0.001<0.001<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.
Virginia Sykes
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