这 Book 用你的语言不存在, 用...查看: English (en),
或使用谷歌翻译:  

in this special publication, most aspects of organic farming are discussed.  Meeting crop N and other nutrient needs from organic sources is a major topic of dicussion; reducing soil erosion and nutrient loss via rotations and minimal tillage are treated thoroughly; minimizing the use of chemical pesticides and decreasing energy inputs are subjects examined; and the economic impact and socio-political implications of organic farming are presented.

出版物详细信息

  • 已出版: 1990
  • 出版者: The Societies
  • ISBN-10: 0891180761
  • ISBN-13: 978-0891180760
  • Dewey Decimal: 635.048
  • ECHO 图书馆: 635.048 ASA

购买