Home Page

Table 8. Sources of Calcium and Phosphorus
Source	Ca, %	P, %	Remarks
Ground Limestone	38	0	Good availability, usually the cheapest source of Ca. May contain 35% Ca.
Dicalcium Phosphate	21	18.5	Good availability, levels may vary.
Monocalcium phosphate	18	21	Good availability, levels may vary.
Tricalcium phosphate	38	18
Sodium tripolyphosphate	0	25	Usually a more expensive source of P.
Monosodium phosphate	0	25.5
Disodium phosphate	0	21
Defluorinated rock phosphate	32	18	Availability varies.
Steamed bone meal	28	14
Meat and bone meal	9.4	4.58
Tankage	4.6	2.5
Fish meal	5.2	2.88

Notes: Information presented here represents the views of the Authors, and may not represent the views of North Carolina State University. The information provided herein is intended to be used for educational purposes and may not be reproduced without the consent of the Authors!

Distributed in furtherance of the Acts of Congress of May 8 and June 30, 1914. Employment and program opportunities are offered to all people regardless of race, color, national origin, sex, age, or disability. North Carolina State University, North Carolina A&T State University, U.S. Department of Agriculture, and local governments cooperating.