Nitrogen recoveries from organic amendments in crop and soil assessed by isotope techniques under tropical field conditions
Natural infection of tropical forage legume species of Arachis and Stylosanthes by potyviruses related to peanut mottle virus
Molecular detection and identification of group 16SrV and 16SrXII phytoplasma associated with potatoes in Colombia
Maize growth and production as influenced by earthworm-based integrated soil fertility management in tropical agroecosystems
Interpretation of commercial production information: a case study of lulo (Solanum quitoense), an under-researched Andean fruit
Inoculation of tomato seedlings with Trichoderma harzianum and arbuscular mycorrhizal fungi and their effect on growth and control of wilt in tomato seedlings
Integrated soil fertility management: an operational definition and consequences for implementation and dissemination