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Agronomic biosolids application rates for dryland wheat across a range of northwest climate zones

Creator:

Sullivan, Dan M., Bary, Andrew I., Cogger, Craig G., and Shearin, Todd E.

Abstract:

Predicting agronomic rates is important to derive optimum economic and environmental benefits from biosolids fertilizer applications. We conducted this research to 1) evaluate dryland wheat response to biosolids applications over a range of climate zones in the Pacific Northwest and 2) compare agronomic application rates predicted from yield curves with...

Resource Type:

Conference Proceeding

Full Text:

increases at the least responsive sites. Field agronomic rates were within 20 lb N/acre (0 to 0.6 dry tons
Biosolids Fertilization for Dryland Pacific Northwest Wheat Production

Creator:

Sullivan, Dan M., Bary, A. I., Kropf, J. A., and Granatstein, D. M.

Abstract:

The fertilizer value of anaerobically-digested, dewatered biosolids in dryland cereal cropping systems was evaluated at six locations in central and eastern Washington (25 to 35 cm annual precipitation zone). Biosolids were applied at rates of 3 to 20 Mg/ha (approximately 150 to 900 kg N/ha). We measured increases in soil...

Resource Type:

Conference Proceeding

Full Text:

with crop N needs) is probably about 5 Mg/ha biosolids (2 dry tons/acre) for our 25 to 35 cm