Fertilizing Constituents 443 



Phos- Potas- 



phoric slum 



Moisture Ash Nitrogen acid oxide 



Mill Product* --continued 



Wheat flour 9.83 1.22 2.21 .57 .54 



Pea meal 8.85 2.68 3.08 .82 .99 



By-products and Waste Materials 



Dietrich and Konig 



