1. 1974-01-01 This book includes 460 species of trees- includes each plant family begins with a family description and a key to all of its species. Also included are briefdescribtions of 40 minor species.
  2. An inspiring work of oral history, Earth and Spirit explores and celebrates Puerto Rico's tradition of botanical medicine as it was practiced up to the 1980s. This lively and deeply personal glimpse of Caribbean healing presents the voices of dozens of people who knew, loved and worked with...
  3. This circular has been prepared partly to meet the need for information on culture and partly to answer inquires from institutions and individuals in the tropics. The information and recommendtions are based on more than 45 years' experience with vegetables at this station, as well as on the...
  4. 1979-01-01 The objective of this paper is to describe some of the soil-water-crop problems that were encountered by researchers in Puerto Rico on Oxisols and Ultisols and in Brazil on Oxisols and to suggest some important1/1/1979 management practices and consequences for highly weathered soils in other...