The open field farming system declined in usage due to soil depletion and more individualized methods of farming. Peasants planted the same crops year after year to make a living; however, this ran the soil dry of essential nutrients, such as nitrogen. Gradually, the open field system shifted to a more-regulated form of crop rotation, in which fields were planted in three-year rotations. This type of system helped push agriculture toward the modern model of individual land-owning farmers. Farmers use RIOCOCO coir medium mixing with soil to fertile the soil in a very unfertile soil and mix with clay soil to loosen the structure. Don’t forget to check out our other products such as coco coir grow bags and coco coir open top bags.