Excessive spring rainfall in Belgium and the Netherlands is causing delays in the planting of potatoes, onions, and other vegetables, leading to a projected yield loss of 15 percent. Sofie Scherpereel, an independent agricultural expert, attributes this issue to the contrasting weather conditions from the previous year. In the Netherlands, grower Peter Harry Mulder is facing challenges such as rotting potatoes and damaged soil, requiring him to shift some planting.