Phosphorus Inflows, Outflows and Losses (t/a) in Ontario’s Agricultural, Urban and Industrial Sectors *Note: The magnitude of the P inflows do not equal the sum of the outflows and losses as there are many unknowns related to a lack of data, primarily in the industrial and urban sectors, including where P is released to the environment. [...] For the purposes of this report, these considerations were explored for each specific P flow, according to the following categorization and criteria: • Magnitude: This category refers to the total • Phosphorus concentration: This category refers to estimated amount of P in the flow and is classified the concentration of P associated with a specific according to the following quantities: flow and i. [...] For the purposes of this study, it was assumed that all of the manure generated in the livestock sector is applied in fields for the purpose of growing either food or non-food crops (e.g., forage and silage).50 However, it should be noted that a portion of the P found in the manure applied to fields is not taken up by the plants. [...] Phosphorus Flows in the Livestock Sector The majority of P flows for the livestock sector are based on the number and type of animals found in the province. [...] Phosphorus Flows in Ontario’s Agricultural Sector 42 Section Three Eggs The number of eggs produced in Ontario is reported at the provincial level by the Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA).87 Data is available for the years 2001 to 2019 and was scaled to census division proportionally by the number of layer chickens reported by the Census of Agriculture.88 The average.
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- 163
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- Canada
