Mulch can be pebbles, straw, shredded paper, bark, wood-chips, plastic, etc. Compost can be used as a high quality mulch, especially around new transplants. Its slow release of nutrients to the soil gives transplants increased protection and nutrients, and water availability near the roots. Soil is the uppermost layer of the earth. Soils are composed of various proportions of sand, silt, clay and small amounts of organic matter.
Commercial fertilizer contains no organic matter.
Manure is animal waste often mixed with bedding or sludge, and containing nutrients, weed seeds, and potential disease organisms. Proper composting destroys weed seeds and potential disease organisms. F. A subsequent curing period of 2 to 6 months is required for the compost to mature, after which it will not overheat or produce unpleasant odors during storage, and can be beneficially used. Compost provides multiple benefits as a soil amendment, potting mix supplement, and mulch. Binds heavy metals in contaminated soils.