quickly accomplished with a u-bar, particularly in the cases of larger minifarms or commercial farms. Composting allows the plants to transform and enrich the soil with organic matter, and also to return nutrients to the soil. Biointensive composting is fairly straightforward, emphasizing the health and diversity of the microbes that break down and become a part of the compost. Thus, relatively cooler composting is practiced, and plant materials are preferred over animal materials. Soil is often combined with the compost to inoculate the pile with microbes. Without human waste recycling, however, nutrients and organic matter are constantly removed from the soil (as food that is consumed by the farmer) and flushed away. Therefore, when safe and legal human waste recycling is possible—as in many places it already is—that fertility can, and should, be returned to the soil. Another great unappreciated source of compost and soil improvement is the roots of crops themselves, which, in the biointensive system are left to decompose in the soil, where they help to both fertilize and “sew it together”, creating stable soil structure. Thus, crops such as alfalfa, which has exceptionally deep roots, and cereal rye, which has a particularly high volume of roots, are valued. The soil air from the development of deep soil structure, combined with the microbe- and nutrient-rich compost allow the crops to be planted intensively. To plant intensively, beds are 4 to 6 feet (1.2 to 1.8 m) wide, usually 5 ft (1.5 m) and at least 5 feet (1.5 m) long, often 20 feet (6 m), forming a bed of 100 square feet (10 m²). Crops are not planted in traditional rows according to a square pattern, but are planted in a hexagonal or triangular pattern in the bed so that no space is left unnecessarily unused. These wide beds and close spacings not only allow more plants per area (up to 4 times as many), but also enable the plants to form a living mulch over the soil, keeping in moisture and shading out weeds. Additionally, whenever possible seedlings are started in flats or nursery beds, so that more garden space is available to large plants and so that the seedlings can be more closely spaced before transplant, forming a living mulch in the flat as well. Companion planting is described as taking place both in space, which is traditionally called companion planting, and in time, which is