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Illinois Fertilizer Conference Proceedings
January 26-28, 2006

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Table 4. Effect of zinc fertilization on early corn growth biomass
(dry weight) zinc concentration in immature whole plants,
and on corn grain yield at all four locations (combined data) in 2005.
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  Dry Weight of
10 plants at
6-leaf stage
(grams)		 Whole Plant
Zinc Comp
at 6-leaf stage
(mg kg-1)

Corn Grain
Yield(g plot-1)
kg/ha
 
 
 
0-Zn
32 a
71 a
7372 a
1 Zn as ZnSO4
29 a
63 a
7606 a
2 Zn as ZnSO4
29 a
75 ab
7376 a
4 Zn as ZnSO4
31 a
81 b
7852

KSO4-EDTA
31 a
60 a
6355 a

1 Zn as Zn-chelate
27 a
70 a
7794 a

2 Zn as Zn-chelate
32 a
76 ab
7558 a

3 Zn as Zn-chelate
30 a
82 b
7856 a

Means with letters in common are not significantly different at the 5 percent level of probability. Duncan Test.

 

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