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Illinois Fertilizer Conference Proceedings
January 26-28, 2006

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Table 5. Effects of Mn treatment on soybean yield,
leaf Mn level, and flash rating, 2004.
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Roundup
rate		 RW MN WC BR-L† BR-UL DS-L DS-UL Ave.
 
Soybean Yield (bu/acre)
Check
64.4
79.0
50.5
66.8‡
67.6
49.1
43.5
60.1
Foliar
65.0
79.5
49.0
69.6
64.4
50.8
43.6
60.3
Soil
63.0
79.1
50.6
66.2
67.5
50.7
40.5
59.7
LSD
NS
NS
NS
NS
NS
NS
NS
 
Trifoliate Leaf Mn (ppm)
Check
28
57
63
59
68
80
107
66
Foliar
29
56
67
54
68
78
104
65
Soil
28
57
60
57
68
81
112
66
LSD
NS
NS
NS
NS
NS
NS
NS
 
"Flash"(5=no injury, 1 = severe yellowing)
Check
4.8
4.1
4.6
3.9
Data
Not
Collected
4.4
Foliar
4.8
4.0
4.7
3.9
4.4
Soil
4.8
4.2
4.8
3.9
4.4
LSD
NS
NS
NS
NS

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

 

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