Author

Henry F. Holtz

2 books found

Placeholder cover for Effect of calcium and phosphorus content of various soil series in western Washington upon the calcium and phosphorus composition of oats, red clover and white clover

Effect of calcium and phosphorus content of various soil series in western Washington upon the calcium and phosphorus composition of oats, red clover and white clover

Henry F. Holtz · First published 1930

Placeholder cover for A soil survey of the proposed Palouse Irrigation Project

A soil survey of the proposed Palouse Irrigation Project

Henry F. Holtz · First published 1916