Table 4. Effects of Mn treatment on soybean yield, leaf Mn level, and flash rating, 2005.

Illinois Fertilizer Conference Proceedings
January 26-28, 2006

Roundup rate	RW	MN	WC	BR-L†	BR-UL	DS-L	DS-UL	Ave.
	Soybean Yield (bu/acre)
0	66.3	67.6	45.7	52.5	47.6	44.0	48.5	53.2
22	68.2	67.0	44.1	53.4	46.0	49.2	45.5	53.3
44	68.8	65.7	43.8	51.7	47.3	43.5	44.9	52.2
88	64.6	62.1	41.2	45.9	44.9	43.8	45.6	49.7
linear	NS	***	***	*	*	NS	NS
quadratic	NS	NS	NS	NS	NS	NS	NS
	Trifoliate Leaf Mn (ppm)
0	Data not collected			89	99	80	96	91
22
44				94	100	78	95	92
88
linear				NS	NS	NS	NS
quadratic				n/a	n/a	n/a	n/a
	"Flash"(5=no injury, 1 = severe yellowing)
0		5.0		Data not collected
22		4.5
44		3.7
88		2.1
linear		***
quadratic		*

† L = limed, UL = unlimed.
‡ Only P.94B74 used for BR and DS