-
By: Skinner, J. J. (Joshua John), - Sullivan, M. X. (Michael Xavier),Edition:Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1914Volume: no.42 (1914)Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects: Manganese content SoilsBHL Collections:
-
By: Skinner, J. J. (Joshua John), - Reid, F. R. (Frederic Robertson)Edition:Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1916Volume: no.441 (1916)Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects: manganese Manganese content Plants, Effect of manganese on SoilsBHL Collections: