| Abbreviation | Definition |
|---|---|
| NIPHM | National Institute of Plant Health Management |
| NIS | National Irrigation System |
| NISA | National Initiative for Sustainable Agriculture |
| NJC | Not Just Cows |
| NLAE | National Laboratory for Agriculture and the Environment |
| NLFA | Newfoundland and Labrador Federation of Agriculture |
| NLFF | North Louisiana Farm Fresh |
| NLGCA | Non-Land Grant Colleges of Agriculture |
| NLTF | North LPG Tank Farm |
| NMDA | New Mexico Department Of Agriculture |
| NMLB | New Mexico Livestock Board |
| NMOG | New Mexico Orchid Guild |
| NOAC | Negros Occidental Agricultural College |
| NOFA | National Organic Farming Association |
| NOFA | Northeast Organic Farm Association |
| NOFA | Northeast Organic Farming Alliance |
| NOFA | Northeast Organic Farming Association |
| NOGAMU | National Organic Agriculture Movement of Uganda |
| NPG | New Plant Growth |
| NPK | Nitrogen, Potassium, Phosphorous |