AIC Notes pointed me to an Ammonia Loss Calculator by Alberta Agriculture and Rural Development. What I found interesting was not the dollar values themselves, but the way that they are affected by the different factors in the calculation. Change from broadcast to injection and you are suddenly losing half the nitrogen you were before. The factor that surprised me is that the losses go down as the gallons per acre go up. I wonder if that’s because the manure isn’t spread so thin and thus is harder to evaporate?
Anyhow, it’s a useful tool if you want to see how different factors can affect ammonia losses.
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