Nitrogen fertilization is given the greatest attention since it is a nutrient that affects the yield the most. However, if it is incorrectly applied (at an inappropriate time, form or dose), the natural cycle results in its unnecessary loss. This lowers the efficiency of the fertilization, and the costs of the nitrogen fertilizers and their application will not result in the expected yield.
A soil with a main crop that has for example 3 % of humus contains 5000 kg of organic nitrogen. This nitrogen is essentially made of proteins incorporated into the substances that make up humus.
Granular phosphorus fertilizer recovered from liquid hog manure could be a viable alternative to traditional 11-52 monoammonium phosphate (MAP) fertilizer for growing wheat and canola, according to research done at the University of Manitoba.