| seuil de nuisibilité biologique = biological damage treshold |
| stade buttoir = buffer stage |
| support = carrier |
| sanve = charlock |
| stellaire = chickweed |
| sablo argileux = clayey-sand |
| semoir combiné = combine drill |
| semoir à céréales = corn drill |
| seuil de nuisibilité = critical level |
| stade sensible = critical period |
| sélectivité = crop tolerance |
| semis direct = direct seeded, direct sowing, direct drilling |
| semoir = drill |
| sécheresse = drought |
| sec = dry |
| séchoir = dryer |
| séchage = drying |
| seuil de nuisibilité économique = economic damage threshold |
| silex = flint |
| surface foliaire = foliar area |
| sillon = furrow |
| septoriose = glume blotch, septoria |
| sain = intact (healthy) |
| stade pâteux = mealy ripe or dough stage |
| stade laiteux = milky ripe stage |
| stockage à la ferme = on-farm storage |
| semoir de précision = precision drill |
| sac = sack |
| sable = sand |
| sève = sap |
| satisfaisant = satisfactory |
| silvain = saw-toothed grain beetle |
| sarment = shoot |
| silo = silo |
| stade rosette = six leaf stage |
| stade 6 feuilles = six leaf stage |
| sol = soil |
| stade de croissance = stage of growth |
| suffisant = sufficient |
| synergie = synergism |
| systémique = systemic |
| semer à la volée = to broadcast |
| sécher = to dry |
| surveiller = to monitore |
| se faner = to wilt |
| silo tour = tower silo |
| semis sous couvert = undersow |
| son de blé = wheat bran |
