Powers, Wilbur Louis

ID:DA14791968

別名

Powers, W. L.

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  • Liming western Oregon soils

    [by R.E. Stephenson and W.L. Powers]

    Agricultural Experiment Station, Oregon State Agricultural College 1934 Rev Station bulletin / Oregon Agricultural College Experiment Station 325

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  • Maintaining fertility of Grande Ronde Valley soils

    [by W.L. Powers and D.E. Richards]

    Agricultural Experiment Station, Oregon State Agricultural College 1933 Station bulletin / Oregon Agricultural College Experiment Station 311

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  • Soils of Chehalis series and their utilization

    [by W.L. Powers and C.V. Ruzek]

    Agricultural Experiment Station, Oregon State Agricultural College 1932 Station bulletin / Oregon Agricultural College Experiment Station 299

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  • The "Red Hill" soils of western Oregon and their utilization

    [by C.V. Ruzek and W.L. Powers]

    Agricultural Experiment Station, Oregon State Agricultural College 1932 Station bulletin / Oregon Agricultural College Experiment Station 303

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  • Land drainage

    by W.L. Powers and T.A.H. Teeter

    John Wiley 1922 Wiley agricultural engineering series

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  • The use of sulphur in soils

    edited by W.L. Powers

    Compiled and distributed by Agriculture Department Texas Gulf Sulphur Company [19--]

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