Table 6.

Root pruning and nitrogen effects on dogwood nutrient concentration 90 days after budbreak.

Source of variation	Nutrient concentration (% dry weight)
	Leaf					New stem
	N	P	K	Ca	Mg	N	P	K	Ca	Mg
Nitrogen	^**z	^*	NS	^**	NS	^**	NS	**	^**	NS
Pruning	^*	^*	^**	^*	NS	NS	^*	NS	NS	^**
N x P	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS
	Stem					Root
	N	P	K	Ca	Mg	N	P	K	Ca	Mg
Nitrogen	^**	NS	^**	NS	^**	^**	^**	^**	^**	^**
Pruning	NS	NS	NS	NS	NS	^**	^**	^**	NS	^*
N x P	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS

↵^Z NS,*,** Nonsignificant or significant at p ≤ 0.05 or p ≤ 0.01, respectively.