Plant response to concentrated superphosphate and potassium chloride fertilizers
Peck, N.H., MacDonald, G.E.
Plant response to concentrated superphosphate and potassium chloride fertilizers - Washington 1969 - 38 p. - No. 825; New York Agricultural .
Plant response to concentrated superphosphate and potassium chloride fertilizers - Washington 1969 - 38 p. - No. 825; New York Agricultural .