- North Carolina Agricultural Experiment Station598
- North Carolina Cooperative Extension Service36
- Sandhills Research Station (Jackson Springs, N.C.)17
- Fox, John W.13
- Hill, R.G.11
- Method Experiment Station (Raleigh, N.C.)10
- Graeber, R. W. (Robert Walter), 1888-19677
- Oxford Tobacco Research Station7
- Jeter, F. H. (Frank Hamilton), 1891-19556
- North Carolina Agricultural Extension Service6
- North Carolina State University. Department of Communication6
- Mattox, John5
- North Carolina Agricultural Research Service5
- Morrison, Cameron A.4
- Border Belt Tobacco Research Station (Whiteville, N.C.)3
- Central Crops Research Station (Clayton, N.C.)3
- Dearing, Charles3
- Piedmont Experiment Station (Salisbury, N.C.)3
- Slingerland, M. V. (Mark Vernon), 1864-19093
- Agronomy Research Reports (North Carolina Agricultural Experiment Station)2