Bone meal - wikipedia Bone meal Bone meal ( or Bone manure ) is a mixture of finely and coarsely ground animal bones and slaughter - house waste products. It is used as an organic fertilizer for plants and as a nutritional supplement for animals. As a slow - release fertilizer, bone meal is primarily used as a source of phosphorus and protein. Finely ground bone meal may provide a quicker release of nutrients than the coarser ground version of bone meal. Contents 1 Uses 1.1 Dietary supplements 1.2 Fertilizers 1.2. 1 Mycorrhiza 2 History 3 See also 4 References Uses Dietary supplements Bone meal, along with a variety of other meals, especially meat meal, is used as a dietary / mineral supplement for livestock. It is used to feed monogastric animals with bone meal from ruminants, and vice versa, to prevent the spread of bovine spongiform encephalopathy ( BSE ) or `` mad cow disease ''. Proper heat control can reduce salmonella contaminants. Bone meal once was often used as a human dietary calcium supplement. Research in the 1980s found that many bone meal preparations were contaminated with lead and other toxic metals, and is no longer recommended as a calcium source. Fertilizers As a fertilizer, the N-P-K ( Nitrogen - Phosphorus - Potassium ) ratio of bone meal can vary greatly, depending on the source. From a low of 3 - 15 - 0 to as high as 2 - 22 - 0., though some steamed bone meals have N-P - Ks of 1 - 13 - 0. Bone meal is also an excellent source of calcium, but does not provide enough nitrogen to be beneficial to plants. Plants can only get phosphorus from bone meal if the soil pH is below 7.0 ( acidic soil ), according to recent Colorado State University research. Mycorrhiza This section may stray from the topic of the article. Please help improve this section or discuss this issue on the talk page. ( March 2016 ) Organic fertilizers usually require the use of a variety of fungi in the soil to make the nutrients in the fertilizer bioavailable to the plant. For plants needing phosphorus, the fungi mycorrhiza penetrate the roots and break down the compounds containing the phosphorus for easier absorption and utilization, and in turn the plants supply the mycorrhizae with amino acids and sugars. History In 19th century Europe, large scale production and international trade in bone manure was seen as essential for agricultural development. See also Blood meal Bone crusher Feather meal Meat and bone meal Organic hydroponic solutions References Jump up ^ Brigham and Women 's Hospital. `` Bone Meal ''. Retrieved 22 November 2012. Jump up ^ Animal Feed Resources Information System, University of Kentucky, College of Agriculture, Poultry Extension. `` Common Protein Sources for Poultry Diets ''. Archived from the original on 1 December 2012. Retrieved 23 November 2012. ^ Jump up to : Card, Adrian ; David Whiting ; Carl Wilson ; Jean Reeders ( December 2011 ). `` Organic Fertilizers '' ( PDF ). Colorado State University Extension. Colorado Master Gardener Program ( CMG Garden Notes ) : 4. Retrieved 8 October 2014. Jump up ^ Chen, L. ; J. Helenius ; A. Kangus ( 2009 ). `` NJF Seminar 422 : Meat bone meal as nitrogen and phosphorus fertilizer ( abstract ) '' ( PDF ). Nordic Association of Agricultural Scientists. 5 ( 2 ) : 26. Retrieved 23 November 2012. Jump up ^ Stern 's Introductory Plant Biology. McGraw - Hill. 2011. pp. 74 -- 76. ISBN 978 - 0 - 07 - 122212 - 9. Jump up ^ Sir John Sinclair ( 1832 ). The Code of Agriculture. Sherwood, Gilbert & Piper. pp. 141 -- 145. Retrieved from `` https://en.wikipedia.org/w/index.php?title=Bone_meal&oldid=799037769 '' Categories : Soil improvers Bone products Organic fertilizers Animal products Hidden categories : All articles with unsourced statements Articles with unsourced statements from March 2016 Wikipedia articles that may have off - topic sections Talk Contents About Wikipedia Deutsch Español Français Hrvatski Íslenska Lietuvių Bahasa Melayu Nederlands Norsk Русский Српски / srpski Suomi Svenska Українська Edit links This page was last edited on 5 September 2017, at 07 : 49. About Wikipedia

Question: bone is used as a fertilizer because it contains the plant nutrient
Answer: phosphorus