Table 3.

Kruskal-Wallis test results of watering and manuring effects on the carbon and nitrogen isotope values of foxtail millet (Setaria), broomcorn millet (Panicum), and wheat (Triticum) grains.

	Setaria	Panicum	Triticum
watering effects on carbon isotope values
1% manure, L watering vs. M watering vs. H watering	p=0.19	p=0.08	p=0.063
	(n=3,3,3)	(n=3,2,2)	(n=3,3,3)
5% manure, M watering vs. H watering	p=0.49	p=0.076	p=0.44
	(n=3,3)	(n=2,3)	(n=2,2)
manuring effects on nitrogen isotope values
M watering, 1% manure vs. 5% manure	p=0.049	p=0.12	p=0.083
	(n=3,3)	(n=2,2)	(n=3,2)
H watering, 1% manure vs. 5% manure	p=0.049	p=0.083	p=0.083
	(n=3,3)	(n=2,3)	(n=3,2)
M and H watering levels combined, 1% manure vs. 5% manure	p=0.004	p=0.014	p=0.011
	(n=6,6)	(n=4,5)	(n=6,4)

L watering, M watering, and H watering corresponds to low, medium, and high watering levels respectively.