Mineral profile, carbohydrates fractionation, nitrogen compounds and in vitro gas production of elephant grass silages associated with cactus pear

Bulletin of the National Research Centre

Table 2 Mineral profile of elephant grass associated with different levels of cactus pear (n = 5)

Variables	Cactus pear levels (g/kg DM)				SEM	P-value
Variables	0	150	300	450	SEM	L	Q
g/kg dry matter
Nitrogen	9.1	8.2	8.8	9.0	0.27	0.770	0.086
Phosphorus^a	2.2	0.9	1.1	0.5	0.45	0.039	0.430
Potassium^b	33.6	40.2	39.3	41.0	1.49	0.013	0.138
Calcium^c	4.6	6.9	9.2	13.2	0.54	< 0.001	0.165
Magnesium^d	1.9	2.2	2.7	3.9	0.23	< 0.001	0.067
mg/kg dry matter
Sulfur	1.3	0.8	1.1	1.4	0.22	0.496	0.119
Sodium^e	509.0	549.0	551.7	544.3	4.32	0.001	0.001
Boron^f	8.5	1.6	9.7	15.9	2.85	0.044	0.052
Copper	15.6	11.5	11.4	12.1	1.56	0.160	0.159
Iron^g	280.9	419.7	397.9	421.7	24.16	0.006	0.045
Manganese	37.1	32.9	34.2	34.9	1.24	0.531	0.205
Zinc^h	26.1	31.2	34.2	35.6	1.87	0.016	0.345