Introduction
Ammonia volatilization during manure application represents a
significant source of air pollution as well as the loss of potential
nitrogen for crop production. Estimates of whole-farm ammonia emissions
suggest that as much as 35% of the total ammonia emissions may occur
during land application of manure depending on manure characteristics
and environmental conditions.
Estimation of ammonia loss from manure is beneficial to improve nutrient
management recommendations and to assess the value of ammonia
conservation techniques. The purpose of this calculator is to estimate
ammonia emissions due to liquid manure application to farm land. It also
estimates the economic value of the ammonia volatilization loss based on
fertilizer nitrogen cost.
By entering the manure characteristics, soil condition, land size,
weather, and application techniques, user will get the results of
estimated ammonia losses and dollar value. By modifying these inputs,
the user can directly observe the effects of individual factors such as
application method, weather conditions on the estimated ammonia loss.
This calculator can assist users to assess environmental conditions and
methods of liquid manure land application.
The option of metric and imperial units is available for land area and
manure application volume
The calculator allows users to print the estimate results.
Users should seek the advice of appropriate professionals and experts if
they have any concerns regarding the inputs and outputs of this
calculator.
FireFox (ver 2+) or Internet Explorer (ver 7+) is recommended.
Disclaimer
The primary purpose of this calculator is to assist producers with the
implementation of management practices that promote environmental and
economic sustainability. The calculator subjects to modification without
notice. Information generated from this calculator is provided to the
recipient entirely at the risk of the recipient and because the
recipient assumes full responsibility, Alberta Agriculture and Irrigation shall not be liable arising out of the use of or reliance on
this calculator.
