1. 19.07.1985 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...
  2. Advantages and challenges of multi-storey cropping systems Why vegetables and fruits are required for the daily diet Fruits and vegetables in the Ethiopian diet What we need to eat to stay healthy Nutrition information on local vegetables and fruits Priority vegetable species for multi-storey...