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
Hardy DH, Tucker MR, Stokes CE. 2013. 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
February 15, 2013
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
