Vertaling van "excessive flooding drastically " (Engels → Frans) :

Excessive moisture due to heavy rains and excessive flooding drastically reduced the amount of hay that farmers were able to bale and what they were able to bale was in very poor condition.
L'humidité excessive attribuable aux fortes pluies et aux inondations a radicalement réduit la quantité de foin récolté et ce qui a pu être récolté était de piètre qualité.