Browsing Washington State University Extension by Author "Halvorson, A. R."
Now showing items 1-20 of 21
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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)