Research Signpost

• Abstract  
  Hui-lian Xu

    1

• Introduction  
  Hui-lian Xu

    2

• Philosophy of nature farming  
  Hui-lian Xu

    3

• Okada's other philosophy than nature farming  
  Hui-lian Xu

    16

• Scientific proofs of nature farming philosophy  
  Hui-lian Xu

    26

• Technologies in nature farming systems  
  Hui-lian Xu

    46

• Perspectives of nature farming  
  Hui-lian Xu

    109

• References  
  Hui-lian Xu

    143