Mixed crops are multiple crops that co-occur on the field. This can range from herbal pastures to crop mosaics. The diversification in crops has a positive influence on crops or soil. For example, clover fixing nitrogen in grassland.
Unlike mixed crops, the diversification in crops in crop rotation occurs over the years. The different crops are grown one after the other at the same field. By using different crops, the risks are spread for the farmer, but it also has a positive influence on the soil. Because the crops change every (few) year(s), the development of soil pathogens is limited. Diverse rooting ensures a better development of the soil life. Finally we also see a reduction of the weed pressure.