Secrets of the soil /

相似書籍

• Basic technics in ecological farming papers presented at the 2nd international conference held by the IFOAM, Montreal, October 1-5, 1978
  出版: (1982)
• Soil organic matter management for sustainable agriculture: a workshop held in Ubon, Thailand, 24-26 August 1994 /
  出版: (1995)
• Soil organic matter and its role in crop production
  由: Allison, Franklin E. (Franklin Elmer), 1892-1972
  出版: (1973)
• Towards holistic agriculture : a scientific approach /
  由: Widdowson, R. W.
  出版: (1987)
• Ecology of soils /
  由: Volobuev, V. R.
  出版: (1964)