by Harry Curtis Young, James Sheldon Shoemaker, Ohio Agricultural Experiment Station, Roy Magruder, Walter Wentworth Wiggin, William H. Alexander
Its Effect on Plant Growth and on Soil Moisture, Nitrates, and Temperature. 1929-1930
by Harry Curtis Young, James Sheldon Shoemaker, Ohio Agricultural Experiment Station, Roy Magruder, Walter Wentworth Wiggin, William H. Alexander
No description available