Phosphate Rate of Return Calculator

This Calculator estimates P2O5 removal by CWRS wheat, barley, canola and pea crops, based on yield, climate zone, and soil test P. Select from the drop down menus to enter data for your own farm. Net return is based on crop price, fertilizer commodity prices, and expected yield increases, and can be displayed by crop price or fertilizer price.

Crop and Soil Data

Crop Type:

Expected Price ($/bushel):

Crop Yield (bu/ac):

Soil Test (0-6″):

NFRZ Zone:

Soil Texture:

Irrigation:

Fertilizer Data

Cost/Tonne:

% P205:

Price of Urea:

Fertilizer P205 Increment

Crop Price Increment

Fertilizer Price Increment

Cost Unit of P205

Fertilizer Reccomendations
Target Yield Is		bu/acre
Total Removal		lb P2O5/ac
Required		lb/ac towards sufficiency
Remaining		lb/ac towards sufficiency

Result by Crop Price Result by Fertilizer Price

			Expected Crop Price

		Yield Increase	Net Return ($/ac.)**
	P205 Rate	from 0 lb. P2O5*	Crop:P205 Ratio
Recommendation for:	(lb/ac)	(bu/ac)
Sufficiency:
Sufficiency -5 lbs:
Total Removal:

*Yield responses are averages from 79-site years of Westco P-rate studies for wheat in the three prairie provinces
**Net Return = (crop price x yield increase) – (P2O5 price x P2O5 rate)
Calculations performed on this spreadsheet are based on averages from a large area and are not farm specific. They are provided as a guideline only.

View the Nitrogen Fertilizer Recommendation Zones map

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The calculator was developed by Rigas Karamanos based on Westco Fertilizer research trials.

			Expected Fertilizer Price

		Yield Increase	Net Return ($/ac.)**
	P205 Rate	from 0 lb. P2O5*	Crop:P205 Ratio
Recommendation for:	(lb/ac)	(bu/ac)
Sufficiency:
Sufficiency -5 lbs:
Total Removal: