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  1. 1
    Grass land nitrogen
    per White head,D C
    Publicat 1995
    Printed Book
  2. 2
    Grassland invertebrates : ecology ,influence on soil fertility and effects on plant growth
    per Curry,J P
    Printed Book
  3. 3
    Plant nutrition for food security:Guide for integrated nutrition management
    per Roy,R N
    Publicat 2007
    Printed Book
  4. 4
    Encyclopedia of organic farming-vol.ii
    per Howard ,Daniel
    Publicat 2008
    Printed Book
  5. 5
    Crop production and management
    per Morachan, Y B
    Publicat 1993
    Printed Book
  6. 6
    Soil fungi and soil fertility
    per Garrett, S D
    Publicat 1963
    Printed Book
  7. 7
    Soils: their chemistry and fertility in tropical Asia
    per Bali V P
    Publicat 1970
    Printed Book
  8. 8
    Principles and practices of agronomy
    per Singh, S S
    Publicat 1988
    Printed Book
  9. 9
    Principles and practices of agronomy
    per singh, S S
    Publicat 1988
    Printed Book
  10. 10
    Fertilizing for maximun yields
    per Cooke, G W
    Publicat 1982
    Printed Book
  11. 11
    Agricultural testament
    per Howard, Albert
    Publicat 1945
    Printed Book
  12. 12
    Soils : their chemistry and fertility in tropical Asia
    per Bali, Y.P
    Publicat 1970
    Printed Book
  13. 13
    Soils : their chemistry and fertlity in tropical Asia
    per Bali, Y.P
    Publicat 1970
    Printed Book
  14. 14
    Soils : their chemistry and fertility in tropical Asia
    per Bali, Y.P
    Publicat 1970
    Printed Book
  15. 15
    Soil science: its principles and practice
    per Weir, Wilbert Walter
    Publicat 1949
    Printed Book
  16. 16
    Principles and practices of oganic farming
    per Panda, SC
    Publicat 2012
    Printed Book
  17. 17
    Soil productivity and crop growth
    per Raheja, P.C
    Publicat 1966
    Printed Book
  18. 18
    Irriagation with saline water
    per Paliual, K.V
    Publicat 1972
    Printed Book
  19. 19
    Soils and soil fertility
    per Thompson, Lovis M
    Publicat 1957
    Printed Book
  20. 20
    Possibilities of increasing world food production
    per Pawley, Walter H
    Publicat 1963
    Printed Book
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