Table 19. Early Nov. Planted, Across Location, Forage Quality

Table 19-a. Across location mean forage quality of 18 cover crop varieties and 8 mixes planted in early Nov. 2020, in small plot replicated trials, at two University of Tennessee AgResearch and Education Center locations, in Tennessee, and evaluated from Fall 2020 to Spring 2021.

Variety	Common Name	CP¶				ADF¶				NDF¶
		Apr		May		Apr		May		Apr		May
Cereals
Bates RS4	Cereal Rye	9.5	L	6.7	N	31.1	AB	39.8	A	59.8	A	70.5	A
Elbon	Cereal Rye	10.8	KL	6.9	N	28.2	CD	39.4	AB	54.7	B	71.0	A
NF95319B	Cereal Rye	9.5	L	6.6	N	31.2	AB	40.0	A	58.9	A	71.8	A
NF97325	Cereal Rye	10.8	KL	6.6	N	29.9	BC	39.8	A	57.8	AB	70.1	A
NF99362	Cereal Rye	9.6	L	7.3	MN	30.9	B	39.7	A	59.5	A	70.9	A
Yankee	Cereal Rye	13.6	H-J	9.1	LM	23.5	FG	33.2	D-G	45.4	CD	63.0	B
TN1902	Wheat	13.1	IJ	9.7	KL	24.0	F	28.7	J-L	45.0	CD	53.1	D
Legumes
Paradana	Clover, Balansa	14.8	G-J	15.8	GH	33.6	A	29.9	H-K	39.0	EF	33.8	J-L
Taipan	Clover, Balansa	15.1	G-I	15.5	GH	30.4	BC	30.1	H-J	38.8	E-G	35.7	I-K
Viper	Clover, Balansa	16.3	E-G	16.9	FG	30.9	A-C	30.6	G-J	36.8	F-I	35.0	JK
Lightning	Clover, Berseem	18.7	C-E	20.8	C-E	26.7	DE	25.1	MN	34.6	HI	30.5	L-N
Dixie	Clover, Crimson	17.6	D-F	19.0	EF	23.5	F-H	28.7	J-L	29.3	JK	32.5	K-M
AU Merit	Vetch, Hairy	22.7	A	27.2	AB	21.3	GH	24.9	MN	24.9	L	26.8	NO
Patagonia	Vetch, Hairy	22.0	AB	25.7	B	23.2	F-H	26.4	LM	27.2	KL	29.0	M-O
WinterKing	Vetch, Hairy	23.8	A	28.8	A	20.9	H	23.5	N	23.8	L	25.4	O
Brassicas
Vivant	Hybrid (turnip x rapeseed)	15.5	F-H	13.1	IJ	24.7	EF	34.7	C-E	32.8	IJ	43.8	GH
Aerifi	Radish	15.0	G-I	12.7	IJ	27.2	D	34.3	C-F	35.1	G-I	42.7	GH
Jackpot	Turnip	14.7	G-J	13.4	I	26.6	DE	35.7	CD	35.6	F-I	45.2	FG
Mixes
Bates RS4 (20%) + Dixie (80%)	Cereal Rye + Crimson Clover	12.7	JK	11.3	JK	28.8	B-D	38.9	AB	47.6	C	58.6	C
Bates RS4 (20%) + AU Merit (80%)	Cereal Rye + Hairy Vetch	16.6	E-G	19.0	EF	27.3	D	32.5	E-H	42.7	DE	45.1	FG
Bates RS4 (10%) + Dixie (90%)	Cereal Rye + Crimson Clover	13.9	H-J	13.5	I	27.4	D	36.9	BC	44.4	CD	52.2	DE
Bates RS4 (10%) + AU Merit (90%)	Cereal Rye + Hairy Vetch	15.5	F-H	20.0	DE	27.4	D	31.6	F-I	43.6	D	43.9	GH
Yankee (20%) + Dixie (80%)	Cereal Rye + Crimson Clover	15.6	F-H	14.4	HI	21.2	GH	32.0	F-I	37.4	F-H	48.7	EF
Yankee (20%) + AU Merit (80%)	Cereal Rye + Hairy Vetch	19.9	BC	21.6	CD	22.6	F-H	28.9	J-L	34.3	HI	39.8	HI
TN1902 (20%) + Dixie (80%)	Wheat + Crimson Clover	15.6	F-H	14.7	HI	23.1	F-H	29.7	I-K	35.7	F-I	43.5	GH
TN1902 (20%) + AU Merit (80%)	Wheat + Hairy Vetch	19.7	CD	22.0	C	22.9	F-H	27.5	K-M	34.2	HI	37.3	IJ
Cereals
Average		11.0		7.6		28.4		37.2		54.4		67.2
Min		9.5		6.6		23.5		28.7		45.0		53.1
Max		13.6		9.7		31.2		40.0		59.8		71.8
Range		4.1		3.1		7.6		11.3		14.7		18.7
Legumes
Average		18.9		21.2		26.3		27.4		31.8		31.1
Min		14.8		15.5		20.9		23.5		23.8		25.4
Max		23.8		28.8		33.6		30.6		39.0		35.7
Range		9.0		13.2		12.6		7.1		15.1		10.3
Brassicas
Average		15.1		13.1		26.2		34.9		34.5		43.9
Min		14.7		12.7		24.7		34.3		32.8		42.7
Max		15.5		13.4		27.2		35.7		35.6		45.2
Range		0.7		0.7		2.5		1.4		2.8		2.5
Mixes
Average		16.2		17.1		25.1		32.2		40.0		46.2
Min		12.7		11.3		21.2		27.5		34.2		37.3
Max		19.9		22.0		28.8		38.9		47.6		58.6
Range		7.2		10.7		7.7		11.5		13.4		21.2
Across Groups
Average		15.5		15.3		26.5		32.4		40.7		46.9
Standard Error		4.0		6.5		3.7		5.2		10.6		15.0
Min		9.5		6.6		20.9		23.5		23.8		25.4
Max		23.8		28.8		33.6		40.0		59.8		71.8
Range		14.4		22.2		12.6		16.5		35.9		46.4
ANOVA p-values
– Variety		<0.001		<0.001		<0.001		<0.001		<0.001		<0.001
– Location		<0.001		<0.001		N.S.		0.014		<0.001		<0.001
– Variety x Location		0.017		0.084		0.026		<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 19-b. Across location mean forage quality of 18 cover crop varieties and 8 mixes planted in early Nov. 2020, in small plot replicated trials, at two University of Tennessee AgResearch and Education Center locations, in Tennessee, and evaluated from Fall 2020 to Spring 2021.

Variety	Common Name	Ash¶				Fat¶				Lignin¶
		Apr		May		Apr		May		Apr†		May
Cereals
Bates RS4	Cereal Rye	2.5	K	1.9	L	2.4	HI	2.0	J	3.6	GH	6.0	BC
Elbon	Cereal Rye	3.6	K	1.7	L	2.7	F-H	2.1	J	3.5	GH	5.9	C
NF95319B	Cereal Rye	3.1	K	1.1	L	2.3	I	2.0	J	3.6	GH	6.0	BC
NF97325	Cereal Rye	3.4	K	1.9	L	2.7	F-H	1.9	J	3.7	F-H	6.2	BC
NF99362	Cereal Rye	3.4	K	1.6	L	2.5	G-I	2.0	J	3.7	F-H	6.3	BC
Yankee	Cereal Rye	5.5	IJ	3.0	K	3.5	A	2.7	B-E	3.3	HI	4.2	GH
TN1902	Wheat	5.4	J	3.5	K	3.1	BC	2.6	E-G	2.6	I	3.6	H
Legumes
Paradana	Clover, Balansa	11.5	A	9.0	B-D	3.1	BC	2.3	G-I	7.2	A	6.4	BC
Taipan	Clover, Balansa	9.9	BC	9.3	A-C	3.0	CD	2.5	E-H	6.1	BC	6.5	B
Viper	Clover, Balansa	10.8	AB	9.7	AB	2.7	F-I	2.4	F-H	6.2	BC	6.3	BC
Lightning	Clover, Berseem	9.1	CD	10.2	A	3.0	CD	2.8	B-D	4.9	DE	4.5	E-G
Dixie	Clover, Crimson	8.6	CD	8.5	C-E	2.7	D-G	2.3	G-I	4.6	DE	6.1	BC
AU Merit	Vetch, Hairy	8.1	DE	8.5	C-E	2.9	C-F	2.9	AB	4.7	DE	4.9	D-F
Patagonia	Vetch, Hairy	8.5	D	8.9	B-E	2.9	C-F	2.8	A-C	4.9	D	5.1	DE
WinterKing	Vetch, Hairy	9.2	CD	9.1	BC	3.0	C-E	3.0	A	4.6	DE	4.4	FG
Brassicas
Vivant	Hybrid (turnip x rapeseed)	7.1	EF	6.1	HI	2.8	D-G	2.5	E-G	5.8	C	8.3	A
Aerifi	Radish	7.1	E-G	6.3	G-I	2.7	D-G	2.1	IJ	6.6	AB	7.8	A
Jackpot	Turnip	6.9	E-H	5.2	IJ	2.9	C-F	2.5	E-H	6.0	BC	8.2	A
Mixes
Bates RS4 (20%) + Dixie (80%)	Cereal Rye + Crimson Clover	5.5	J	4.7	J	2.7	D-G	2.0	J	4.3	D-G	6.0	BC
Bates RS4 (20%) + AU Merit (80%)	Cereal Rye + Hairy Vetch	6.5	F-J	7.1	F-H	2.8	C-F	2.5	E-H	4.6	DE	5.2	D
Bates RS4 (10%) + Dixie (90%)	Cereal Rye + Crimson Clover	5.4	J	5.2	IJ	2.7	D-G	2.0	J	4.1	E-G	6.1	BC
Bates RS4 (10%) + AU Merit (90%)	Cereal Rye + Hairy Vetch	5.8	H-J	7.2	FG	2.7	E-G	2.6	C-F	4.4	D-F	5.2	D
Yankee (20%) + Dixie (80%)	Cereal Rye + Crimson Clover	5.9	G-J	5.6	IJ	3.4	AB	2.6	D-G	3.0	HI	4.7	D-G
Yankee (20%) + AU Merit (80%)	Cereal Rye + Hairy Vetch	7.0	E-H	8.0	D-F	3.2	BC	2.9	AB	4.1	E-G	4.9	D-F
TN1902 (20%) + Dixie (80%)	Wheat + Crimson Clover	6.5	F-J	5.5	IJ	3.1	C	2.3	HI	4.1	E-G	5.1	D
TN1902 (20%) + AU Merit (80%)	Wheat + Hairy Vetch	6.7	F-I	7.8	EF	3.1	BC	2.8	A-C	4.1	E-G	4.7	D-G
Cereals
Average		3.9		2.1		2.7		2.2		3.4		5.5
Min		2.5		1.1		2.3		1.9		2.6		3.6
Max		5.5		3.5		3.5		2.7		3.7		6.3
Range		3.0		2.4		1.2		0.8		1.1		2.6
Legumes
Average		9.5		9.2		2.9		2.6		5.4		5.5
Min		8.1		8.5		2.7		2.3		4.6		4.4
Max		11.5		10.2		3.1		3.0		7.2		6.5
Range		3.5		1.6		0.5		0.7		2.6		2.2
Brassicas
Average		7.0		5.9		2.8		2.4		6.1		8.1
Min		6.9		5.2		2.7		2.1		5.8		7.8
Max		7.1		6.3		2.9		2.5		6.6		8.3
Range		0.2		1.0		0.1		0.4		0.8		0.6
Mixes
Average		6.2		6.4		3.0		2.5		4.1		5.2
Min		5.4		4.7		2.7		2.0		3.0		4.7
Max		7.0		8.0		3.4		2.9		4.6		6.1
Range		1.6		3.3		0.7		0.9		1.5		1.4
Across Groups
Average		6.7		6.0		2.9		2.4		4.5		5.7
Standard Error		2.4		2.9		0.3		0.3		1.2		1.2
Min		2.5		1.1		2.3		1.9		2.6		3.6
Max		11.5		10.2		3.5		3.0		7.2		8.3
Range		9.0		9.0		1.2		1.1		4.6		4.7
ANOVA p-values
– Variety		<0.001		<0.001		<0.001		<0.001		<0.001		<0.001
– Location		<0.001		<0.001		N.S.		N.S.		<0.001		<0.001
– Variety x Location		0.018		0.048		N.S.		N.S.		<0.001		<0.001