Table 25. Early Nov. Planted, Spring Hill, TN, Cover and Height

Table 25. 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 Middle Tennessee AgResearch and Education Center, in Spring Hill, Tennessee, and evaluated from Fall 2020 to Spring 2021.
VarietyCommon NameCanopy Cover (%)       Height (in)       
DecFebApr§May‡‡DecFebAprMay
Cereals
Bates RS4Cereal Rye47AB37A85A-C95AB6A-C5AB26A54A-C
ElbonCereal Rye49A28BC82B-D93AB6AB4C-E20BC49C
NF95319BCereal Rye43A-E28BC78CD97AB6A5A-C22A-C51C
NF97325Cereal Rye45A-C36AB85A-C92AB6A-C5A23AB53BC
NF99362Cereal Rye37C-G22C-H78CD90A-C6A4C-E19B-D48C
YankeeCereal Rye44A-D23C-G72D85BC6AB4C-E10F-I26E
TN1902Wheat37C-G23C-F77CD77C5BC4D-F13E-G24EF
Legumes
ParadanaClover, Balansa23I11J-L6F40E3E3F3K6I
TaipanClover, Balansa26HI11J-L7F55D3E3F3K9HI
ViperClover, Balansa27HI8L10F28E3E3F3K8I
LightningClover, Berseem37C-G14F-L15F58D3E3F5JK10HI
DixieClover, Crimson38B-G14G-L45E87A-C3E3F6H-K18FG
AU MeritVetch, Hairy38C-G16E-L78CD100A3E3F9G-J22EF
PatagoniaVetch, Hairy34E-H16D-L85A-C100A3E3F10F-I24EF
WinterKingVetch, Hairy34F-H13H-L90AB100A3E3F11F-H25E
Brassicas
VivantHybrid (turnip x rapeseed)27HI10KL7F28E3E3F12FG26E
AerifiRadish30G-I12J-L5F30E3E3F6I-K14GH
Jackpot Turnip35D-H13I-L8F28E3E3F18C-E26E
Mixes
Bates RS4 (20%) + Dixie (80%)Cereal Rye + Crimson Clover37C-G21C-I83A-C95AB6A-C4C-E24AB58AB
Bates RS4 (20%) + AU Merit (80%)Cereal Rye +
Hairy Vetch
35D-H19D-J93A100A6AB4C-E21A-C51C
Bates RS4 (10%) + Dixie (90%)Cereal Rye + Crimson Clover30G-I23C-G77CD92AB6A-C4B-D25A60A
Bates RS4 (10%) + AU Merit (90%)Cereal Rye +
Hairy Vetch
33F-H18D-K85A-C100A6A-C4D-F21A-C57AB
Yankee (20%) +
Dixie (80%)
Cereal Rye + Crimson Clover37C-G24CD77CD90A-C6A-C3F14D-F34D
Yankee (20%) +
AU Merit (80%)
Cereal Rye +
Hairy Vetch
40A-F22C-G85A-C100A4D3EF13E-G27E
TN1902 (20%) +
Dixie (80%)
Wheat +
Crimson Clover
41A-F23C-E77CD90A-C4D3F14E-G25E
TN1902 (20%) +
AU Merit (80%)
Wheat +
Hairy Vetch
40A-F17D-L82B-D100A5CD3F14E-G27E
Cereals
Average43288090641943
Min37227277541024
Max49378597652654
Range12161320121630
Legumes
Average3213427133615
Min2386283336
Max381690100331125
Range158847200819
Brassicas
Average3112729331222
Min271052833614
Max3513830331826
Range7332001212
Mixes
Average37218296541842
Min30177790431325
Max412493100642560
Range1171710211234
Across Groups
Average36196079541432
Standard Error67332611717
Min2385283336
Max493793100652660
Range25298872322354
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 appropriate 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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