. 2024 Oct 18;10(20):e39600. doi: 10.1016/j.heliyon.2024.e39600

Table 5.

Cover crop systems crude protein (CP), acid (ADF) and neutral detergent fiber (NDF) concentrations and relative feed value (RFV) in each year and the two-year average in Reno, Nevada, USA.

Cover crop system	CP			ADF			NDF			RFV
	Year 1	Year 2	2-yr avg	Year 1	Year 2	2-yr avg	Year 1	Year 2	2-yr avg	Year 1	Year 2	2-yr avg
Monocultures	---------------------------------------------------------------g kg⁻¹-----------------------------------------------------------------
Annual ryegrass	117.0	54.0^d^a	85.5^c	411.3^ab	465.2^b	438.2^a	617.6^a	676.7^a	647.1^a	86^c	73^c	80^c
Oat	131.8	69.6^d	100.7^bc	379.1^b	435.6^bc	407.3^ab	585.2^a	623.2^ab	604.2^a	95^c	82^c	89^c
Faba bean	146.9	168.6^a	157.7^a	287.2^d	371.6^d	329.4^c	354.6^c	409.9^d	382.2^c	175^a	148^a	161^a
Yellow sweetclover	149.6	121.8^bc	135.7^a	328.4^c	521.3^a	425.0^a	411.7^bc	588.1^b	499.9^b	147^b	77^c	112^b
Winter pea	132.3	143.2^b	137.8^a	286.1^d	418.7^c	352.3^bc	453.8^b	487.9^c	470.9^b	151^b	111^b	131^b

Mixtures

Mix 1^b	152.5	106.3^c	129.4^ab	425.8^a	457.4^b	441.6^a	626.0^a	604.7^b	615.3^a	83^c	83^c	83^c
Mix 2^b	90.8	101.9^c	96.3^bc	396.8^ab	446.2^bc	421.5^a	616.7^a	607.0^b	611.8^a	88^c	83^c	86^c
SE^c	32.4	7.5	18.7	17.9	13.0	19.5	32.6	20.0	21.7	9.0	9.0	8.0
*P-value*	0.106	<0.001	0.001	<0.001	<0.001	0.002	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001

Means within columns that are followed by the same lowercase letter superscripts are not different among cover crop systems (P > 0.05).

Mix 1 (composition: annual ryegrass + faba bean + yellow sweetclover) and Mix 2 (composition: oat + faba bean + winter pea).

SE; standard error.