Crop Fertilization Based on North Carolina Soil Tests
Table 4.12 Commonly available sources of boron (B)
Source
Formula
% B
Boric acid
N3BO3
17
Borax
Na2B4O7 • 10H2O
11
Solubor
Na2B4O7 • 4H2O
Na2B10O16 • 10H2O
20.5
Fertilizer borate – 48
Na2B4O7 • 10H2O
14–15
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
