Crop Fertilization Based on North Carolina Soil Tests
Table 4.13 Commonly available sources of copper (Cu)
Source
Formula
% Cu
Copper sulfate (pentahydrate)
CuSO4 • 5H2O
25
Copper sulfate (monohydrate)
CuSO4 • H2O
35
Copper oxide
CuO
75
Ammonia base copper
CuSO4 + NH4OH
8
Copper chelates
Na2Cu EDTA
13
NaCu HEDTA
9
Cupric ammonium phosphate
Cu(NH4)PO4 • 2H2O
32
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
