Table 25.  Haskell, Eastern Research Station, Muskogee County
	Rainfed, Sown 4 April 2006
	Roundup Ready vs. Conventional
				2006
	Variety	Herbicide	Treatment Combination	23-Jun	6-Oct	Total
				Weed-free Tons DM/Acre
	DKA41-18RR	None	9	1.63	1.06	2.69
	OK 49	PP & 2,4-DB	4	1.34	1.32	2.65
	OK 49	Select & 2,4-DB	10	1.31	1.34	2.65
	DKA41-18RR	Roundup	3	1.52	1.07	2.58
	OK 49	None	8	1.23	1.32	2.56
	DKA41-18RR	Roundup	12	1.44	1.08	2.52
	DKA41-18RR	None	1	1.28	1.21	2.48
	OK 49	Beyond	6	1.35	1.13	2.47
	OK 49	None	2	1.14	1.18	2.32
	DKA41-18RR	Select & 2,4-DB	11	1.18	1.13	2.31
	DKA41-18RR	Beyond	7	1.23	1.01	2.24
	DKA41-18RR	PP & 2,4-DB	5	0.92	0.94	1.86
	Mean			1.29	1.15	2.44
	5% LSD			0.32	0.25	0.49 ns
	CV (%)			17.3	14.9	13.9
	OK 49			1.27	1.26	2.53
	DKA41-18RR			1.31	1.07	2.38
Planted	4/5/2006
Herbicide Date	Herbicide Used	Herbicide Rate	Herbicide Additive	Alfalfa Growth Stage	Weed size	Weed Density	Trt. Sprayed
5/18/2006	Roundup  WeatherMax	44 oz/A	AMS at  3 lbs/A	3-4 trifoliate	3 to 4" tall	>5%	3
5/18/2006	Poast Plus & 2,4-DB	2 pt/A + 3 pt/A	Crop Oil 1 qt/A	3-4 trifoliate	3 to 4" tall	>5%	4 & 5
5/18/2006	Beyond	5 fl oz/A product	AMS at  3 lbs/A	3-4 trifoliate	3 to 4" tall	>5%	6 & 7
5/18/2006	Select & 2,4-DB	8 fl oz/A + 3 pt/A	Crop Oil 1 qt/A	3-4 trifoliate	3 to 4" tall	>5%	10 & 11
5/18/2006	Roundup  WeatherMax	44 oz/A	AMS at  3 lbs/A	3-4 trifoliate	3 to 4" tall	>5%	12