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Crop Fertilization Based on North Carolina Soil Tests
Table 4.15  Commonly available sources of zinc (Zn)
Source
Formula
% Zn
Zinc sulfate ZnSO4 • 2H2O 35
Zinc oxide ZnO 78–80
Zinc chloride ZnCl2 31
Zinc carbonate ZnCO3 58
Ammonia base zinc (liquid)   10
Zinc nitrate (liquid) Zn(NO3)2 17
Zinc chelates Na2Zn  EDTA 14
Na2Zn  HEDTA 9
return icon.Hardy DH, Tucker MR, Stokes CE. 2014. Crop fertilization based on North Carolina soil tests. Raleigh (NC): North Carolina Department of Agriculture and Consumer Services, Agronomic Division. Circular No. 1.

Last Update January 10, 2014

 

 

NCDA&CS Agronomic Services Division, Colleen M. Hudak-Wise, Ph.D., Director
Mailing Address: 1040 Mail Service Center, Raleigh NC 27699-1040
Physical Address: 4300 Reedy Creek Road, Raleigh NC 27607-6465
Phone: (919) 733-2655; FAX: (919) 733-2837