TABLE 1.

Organic matter, nutrient, and cation content for soils collected from Stipa and Bromus rhizospheres and from the interspaces

Location	Organic matter (%)	Nutrient content (ppm)			Cation content (milliequivalents/liter)
		N	P	K	Mg	Ca	Na
Interspace	0.29	4.0	2.4	105	0.73	2.80	0.83
Stipa	0.25	2.4	1.9	93	0.64	2.74	0.87
Bromus	0.30	2.7	1.5	82	2.70	1.50	0.82