Table 2. A p-values from mixed model analysis for the effect of harvest interval, seeding rate and variety and their interactions.

Effect	Yield			CP		ADF		NDF		RFV		EI
	2015	2016	2017	2016	2017	2016	2017	2016	2017	2016	2017	2016	2017
HI	**	*	**	**	**	*	**	**	**	**	**	**	NS
SR	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS
HI × SR	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS
V	*	NS	NS	NS	NS	**	*	*	**	**	**	NS	NS
HI × V	NS	NS	*	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS
SR × V	*	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS
HI × SR × V	NS	NS	NS	*	NS	NS	NS	*	NS	*	NS	NS	NS

^*p < 0.05,

^**p < 0.01.

CP, crude protein; ADF, acid detergent fiber; NDF, neutral detergent fiber; RFV, relative feed value; EI, economic income; HI, harvest interval; NS, not significant; SR, seeding rate; V, variety.