Use of sugar beet petioles as insicators of soil fertility needs
Gardner, Robert, Robertson, D.
Use of sugar beet petioles as insicators of soil fertility needs - Fort Collins 1935 - 1-16 p. - Colorado Agricultural Experim .
Use of sugar beet petioles as insicators of soil fertility needs - Fort Collins 1935 - 1-16 p. - Colorado Agricultural Experim .