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  1. 1
    Organic farming theory and practice
    由 Annadurai, K, Palaniappan, S P
    出版 2003
    Printed Book
  2. 2
    Soils and Fertilizers at a glance
    由 Kanthaliya, P C, Somani, L L
    出版 2004
    Printed Book
  3. 3
    Green manuring for soil productivity improvement
    由 OP Meelu
    出版 2007
    Printed Book
  4. 4
    Green manuring principles and practice
    由 Pieters, Adrin J
    出版 2013
    Printed Book
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