| spray = rampe de traitement |
| septoria = septoriose |
| sack = sac |
| sack lifter = monte-sac |
| sand = sable |
| sap = sève |
| satisfactory = satisfaisant |
| saw-toothed grain beetle = silvain |
| scale insects = |
| scarecrow = épouvantail |
| scorch = brûlure |
| seed dressing = traitement de semences |
| seed rate = dose de semis |
| seed vigour after germination = vigueur au départ |
| seedbed = lit de semence |
| seedling = plantule |
| selective herbicide for the control of... in cereals = herbicide sélectif pour lutter contre ... sur céréales |
| self-pollination = auto fécondation |
| set aside = jachère, gel de terre |
| severe = important |
| strong = important |
| sheath = gaine |
| shoot = pousse |
| shoot = sarment |
| shower = averse |
| silo = silo |
| silt = limon |
| silty soil = rendzine |
| simple plot = parcelle élémentaire |
| single grain = grain |
| single spray = un seul passage |
| six leaf stage = stade rosette |
| six leaf stage = stade 6 feuilles |
| slashing machine = déchiqueteuse |
| slight = faible |
| slug = limace |
| slurry = lisier |
| smoke = brouillard |
| smut = charbon |
| snail = escargot |
| snowrot = pourriture des neiges |
| soft wheat = blé tendre |
| soil = sol |
| soil cover = couverture du sol (en général) |
| soil moisture content = humidité, teneur en eau du sol |
| soil profile = profil sol |
| soil sample = échantillon de sol |
| soil sampling = prélèvement de sol |
| soil sterilant = désinfectant du sol |
| sorter = trieur |
| sowthistle = laiteron |
| spade = bêche |
| sparrow = moineau |
| speedwell = véronique |
| spikelet = épillet |
| sprayer = pulvérisateur |
| spreader = épandeur |
| sprinkler = asperseur |
| sprocket = pignon |
| stack = meule |
| stage of growth = stade de croissance |
| standing crop = récolte sur pied |
| starling = étourneau |
| steam sterilization = désinfection à la vapeur |
| stem = tige |
| stalk = tige |
| sterile brome = brome stérile |
| stomach poison = poison par ingestion |
| stone crusher = broyeuse à cailloux |
| straw = paille |
| stubble = chaume |
| stubble cleaning = déchaumage |
| sufficient = suffisant |
| sugar beet = betterave à sucre |
| sugar beet harvester = arracheuse de betteraves à sucre |
| sugar beet top = collet de betteraves à sucre |
| sugar beet topper = décolleteuse de betteraves à sucre |
| sugar level = taux de sucre |
| synergism = synergie |
| systemic = systémique |
| to shrivel = dépérir |
| to slash = déchiqueter |
| to sort = trier |
| to spread = épandre |
| to sprinkle = asperger |
| to sprout = germer |
| single = démarier, éclaircir |
