1. 01.05.1950 The rocks of the several geological formations are described briefly, and a correlation between the geological formations of this state and those of nearby states is made. Analyses of several samples of rocks from many of the geological formations indicated that selenium is usally present in the...
  2. 01.03.1945 Technical Bulletin no. 5 31 pages, tables
  3. Abstract,Agronomy for Sustainable Development, Springer Verlag/EDP Sciences/INRA, 2017 Over the last three decades, urban agriculture has been improving food security in Cuba by providing fresh vegetables within and on the outskirts of cities and villages. However, organic fertilizers and...
  4. 20.04.2013 Sometimes the smallest of things can impact human health beyond all proportion to their size. Trace elements are an example of this. Trace elements in an amount that is either above or below certain thresholds in soil, animal feed, or the human diet can have important impacts on the health of...