Recycling scraps of fruit, vegetables, and other organic materials by planting them outside.-composting upcycles organic kitchen and yard waste and manures into an extremely useful humus-like, soil end product, permitting the return of vital organic matter, nutrients, and particularly bacteria, that are vital to plant nutrition to the soil. managed aerobic composting arranges environmental conditions so they are optimal for the natural processes to take place. there is a popular expression: compost happens, but it is helpful to engineer the best possible circumstances for large amounts of organic waste to decompose quickly and efficiently, with the greatest conservation of useful nutrients and mass.