Environment

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Prairie Swine Centre is an affiliate of the University of Saskatchewan


Prairie Swine Centre is grateful for the assistance of the George Morris Centre in developing the economics portion of Pork Insight.

Financial support for the Enterprise Model Project and Pork Insight has been provided by:



Author(s): OMAF, Ontario Ministry of Agriculture and Food
Publication Date: January 1, 1994
Reference: Best Management Practices. Ontario Ministry of Agriculture and Food. 69p.
Country: Canada

Summary:

The nutrient in agricultural production is presented with the plants’ needs and the supply of those nutrients from manure and slurry and from fertilizer. Best management is presented as the optimal use of nutrient in order to maximize the crop yield, minimize the cost associated to fertilization and lower to a minimum the environmental impacts. Consequences of over supply of nutrients to the plant and soil are presented with the damage done to water courses with the development of aquatic plants and algae with high phosphorus (P) and nitrogen (N) (nitrate (NO3) and ammonium (NH4)) concentration and in some case to health through water consumption when nitrate concentration exceeding 10 mg/L. The dynamic of the nutrients are well presented with the transport phenomena that can lead to water quality problems (leaching for the NO3 that is very mobile and P that is very immobile and its losses through erosion and particle transport and runoff).

This document provides general information on the nutrient cycle and presents very well the phenomena associated with nutrient uptake by the plants and nutrient leaching or accumulation (depending on the elements) in the soil and environment.

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