Winter grazing of crops is a key source of sediment, nutrient and pathogen loss into waterways from farms. Reducing losses from winter crops can go a long way to reducing total farm losses. With a few simple steps, you can make a real difference now. Soil is our greatest asset, so holding onto more of it makes good economic sense. Damage to soil from poor grazing management of winter crops will impact on the future productivity of that paddock. Too much soil and nutrients in waterways can impact on their ecology and can kill freshwater species.