Corn crops harvested for the grain return large amounts of residue to the soil surface and are more effective in preventing soil erosion than crops with less residue such as soybeans. Mulching is a common practice among strawberry growers in northern climates. In this situation, mulch is used to protect the crop during the winter and to help prevent early blooming of the plants. Plants that bloom too early are more likely to be damaged by spring frosts. The mulch also helps keep the berries cleaner, protecting them from soil splashing on them in the rain.
Inorganic mulches are also widely used in commercial agriculture.
Clear plastic mulch can be particularly beneficial in giving warm season crops a head start. The clear plastic acts as a mini-greenhouse, warming the soil underneath it. Particularly where early sweet corn brings a premium price, this practice can give a grower a couple of weeks head start. Also, research is showing that leaving crop residues helps hold carbon in the soil and aids in reducing greenhouse gases.