This Publication Issue does not exist in your language, View in: English (en),
Or use Google Translate:  
  • The possible role of trees in farming systems of the tropics
  • Exploitation of microbial systems of tree/plant species - India
  • Low-input technology for managing oxisols and ultisols in tropical America
  • Chemical fertilizer aid to Nepal
  • Alley-cropping with leucaena
  • Training courses ecological agriculture in developing countries
  • Rediscovery of the organic system in Indian agriculture
  • The seeds action nework:  towards a sustainable agriculture