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  1. 1978-04-01 488 pages, illustrated, tables
  2. 1985-05-01 Proceedings of an IBSRAM Inaugural Workshop, Bangkok, Thailand 42 pages, tables
  3. 1975-06-01 66 pages, tables Cornell International Agricultural Bulletin 30
  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...
  5. 1984-01-01 Excessive soil acidity is a continuing problem in many agricultural areas and is increasingly becoming a yield-limiting factor in other areas. The pH of soils of the dryland wheat-growing area of the Pacific Northwest has dropped an average of one unit in the last 20 years. Similar effects are...