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    Author(s): Jon M. Geist
    Date: 1971
    Source: Res. Pap. PNW-RP-122. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 17 p
    Publication Series: Research Paper (RP)
    Station: Pacific Northwest Research Station
    PDF: View PDF  (1.2 MB)

    Description

    Growth responses to application of all combinations of N, P, and S on four forest and three grassland soils showed that a significant N-S interaction existed for all seven soils. For two grassland soils, a significant response to phosphorus was obtained in combination with nitrogen and sulfur. The volcanic-ash-derived soils and the Klicker soil had the highest potential yield responses to fertilization.

    Fertilization programs involved with soils which have chemical properties similar to these studied should consider only fertilizer sources which contain both N and S in all cases, and N, S, and P for certain grassland soils.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Geist, Jon M. 1971. Orchardgrass responses to fertilization of seven surface soils from the central Blue Mountains of Oregon. Res. Pap. PNW-RP-122. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 17 p

    Keywords

    fertilization (plants), soil fertility, nitrogen, sulphur

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