| foxtail = vulpin |
| fallow = friche, terre inculte |
| fan = ventilateur |
| fathen = chénopode |
| feeding wheat = blé fourrager |
| fiels capacity = capacité de rétention en eau |
| flame thrower = brûleur |
| flame gun = brûleur |
| flint = silex |
| flower bud = bouton floral |
| flowering = floraison |
| fodder beet = betterave fourragère |
| foliage = feuillage |
| foliar area = surface foliaire |
| foliar spray = engrais foliaire |
| fertilizers = engrais foliaire |
| formulation = formule |
| frit fly = oscinie |
| frost = gel |
| fumigant = fumigène |
| fungal diseases = maladies cryptogamiques |
| fungicide = fongicide |
| furrow = sillon |
| fusarium = fusariose |