translate English to French: Even if one starts modestly. by way of "getting one's hand in" and training staff, it is necessary at the start to estimate the future annual requirements for plants, to choose a site large enough to permit expansion, and to allow for enlargements when the facilities (greenhouses, irrigation systems, etc.) are built.
Meme si on commence modestement, pour se "faire la main" et entrainer Ie personnel, it faut des Ie debut estimer les besoins annuels futurs en plantes, choisir un site assez grand pour permettre l' expansion et prevoir les agrandissements lors de la construction des installations fixes (serres, systemes d'irrigation, etc).