Browsing Washington State University Extension by Author "Halvorson, A. R."

Conservation in crop production

Engle, Carl F.; Halvorson, A. R.; Koehler, Fred E.; Meyer, Raymond Warren, 1921- (Pullman, Washington : Washington State University. Extension., 1981-07)

Environmental education series: Fertilizers and the environment

Halvorson, A. R. (Pullman, Washington : Washington State University. Extension., 1972-11)

Exchangeable cations, cation exchange capacity and base saturation and it's relationship to soil fertility

Halvorson, A. R. (Pullman, Washington : Washington State University. Extension., 1980-04)

Exchangeable cations, cation exchange capacity and base saturation and it's relationship to soil fertility

Halvorson, A. R. (Pullman, Washington : Washington State University. Extension., 1968-01)

Exchangeable cations, cation exchange capacity and base saturation and it's relationship to soil fertility

Halvorson, A. R. (Pullman, Washington : Washington State University. Extension., 1968-03)

Fertilizer recommendations for orchard cover crops and sods

Dow, A. I.; Tukey, Ronald B.; Halvorson, A. R. (Pullman, Washington : Washington State University. Extension., 1969-02)

Fertilizing conservation and no-tillage grain production systems

Engle, Carl F.; Halvorson, A. R.; Koehler, Fred E.; Meyer, Raymond Warren, 1921- (1980-02)

Guide to fertility programs for tree fruits

Tukey, Ronald B.; Dow, A. I.; Halvorson, A. R.; Benson, Nels R.; Woodbridge, Cyril Gordon, 1915-; Crandall, Perry C.; Proebsting, Edward L. (Pullman, Washington : Washington State University. Extension., 1969-02)

Holding back nitrification in the dry land wheat area of eastern Washington

Halvorson, A. R. (1979-11)

Instructions for taking soil samples in orchards

Dow, A. I.; Halvorson, A. R.; Tukey, Ronald B. (Pullman, Washington : Washington State University. Extension., 1969-02)

Interpretation of chemical analysis of irrigation water

Halvorson, A. R.; Dow, A. I.; Hagood, Mel A. (Pullman, Washington : Washington State University. Extension., 1975-12)

Interpretation of special orchard soil tests

Dow, A. I.; Halvorson, A. R.; Tukey, Ronald B. (Pullman, Washington : Washington State University. Extension., 1969-02)

Nitrogen fertilizer use during drought in the summer fallow wheat area of Eastern Washington

Halvorson, A. R. (Pullman, Washington : Washington State University. Extension., 1977-05)

Orchard Soil Sampling

Dow, A. I.; Rushmore, Francis A.; Halvorson, A. R.; Tukey, Ronald B. (Pullman, Washington : Washington State University. Extension., 1991-01)

Soil characteristics such as pH, nutrient levels, and salts are important in managing orchards and establishing new ones. Tells how to obtain and test goo, representative samples. 6 pages.

Orchard soil sampling

Dow, A. I.; Rushmore, Francis A.; Halvorson, A. R.; Tukey, Ronald B. (1979-09)

Organic gardening

Antonelli, Arthur L.; Byther, Ralph S.; Halvorson, A. R.; Thornton, Robert E.; Barritt, Bruce Harold, 1942- (Pullman, Washington : Washington State University. Extension., 1990-01)

Organic gardening

Antonelli, Arthur L.; Byther, Ralph S.; Halvorson, A. R.; Thornton, Robert Earl, 1933-; Barritt, Bruce Harold, 1942- (Pullman, Washington : Washington State University. Extension., 1992-09)

Phosphorus increases wheat yields

Halvorson, A. R.; Guettinger, David L., 1932-; Koehler, Fred E. (Pullman, Washington : Washington State University. Extension., 1976-06)

Soil moisture and nitrate tests: When are they useful?

Halvorson, A. R. (Pullman, Washington : Washington State University. Extension., 1971-11)

Taking routine soil samples for cultivated crops

Halvorson, A. R. (Pullman, Washington : Washington State University. Extension., 1973-09)