Browsing Washington State University Extension by Author "James, D. W. (David W.), 1929-"

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Interpretation of soil test nitrogen for irrigated crops in central Washington

Dow, A. I.; James, D. W. (David W.), 1929-; Nelson, C. E. (Carl Emil) (Pullman, Washington : Washington State University. Extension., 1979-06)
Interpretation of soil test nitrogen for irrigated crops in central Washington

Dow, A. I.; James, D. W. (David W.), 1929-; Nelson, C. E. (Carl Emil) (Pullman, Washington : Washington State University. Extension., 1969-03)
Phosphorus fertilization of irrigated soils in central Washington

Dow, A. I.; James, D. W. (David W.), 1929- (Pullman, Washington : Washington State University. Extension., 1970-04)