Table 1. Sulfur effects in alfalfa-orchardgrass mixture at
		Lake Park, MN, in 2005.
			Harvest date
Treatment^†			6-16	7-20	9-7	Total
			-----------tons dry matter/acre-----------
Check			0.82	1.08	0.81	2.71
Ammonium sulfate^‡			0.90	0.99	0.65	2.53
Zinc sulfate			2.01	1.98	0.94	4.94
Gypsum			1.99	1.95	1.15	5.09
S-15			1.98	2.00	1.09	5.07
Elemental sulfur			1.37	1.72	1.13	4.21
Max-In			0.99	1.01	0.76	2.76
50lb P + 100lb K/A^§			0.94	0.94	0.72	2.61
LSD 0.05			0.15	0.34	0.20	0.44
CV, %			7.7	15.9	15.3	7.9
^†	Sulfur applied at 20 lb S/acre, obviously short in third harvest.
^‡	Wrong treatment, the bag said ammonium sulfate, but we believe it was ammonium nitrate.
^§	All plots except the check received this treatment plus the sulfur treatment