Objetivo THE INTRODUCTION OF ENDOGEIC EARTHWORMS IN LOW-INPUT OF THE HUMID TROPICS MAY INCREASE CROP PRODUCTION BY UP TO 40-100% AT THE EARLY STAGES OF THE CROPPING CYCLE (LAVELLE ET AL., PROJECT STD2-2362). NONETHELESS, THE RESULT VARIES DEPENDING ON THE INTRODUCED EARTHWORM SPECIES, TYPE OF CROP AND SOIL TYPE, AND IT IS NECESSARY TO CONTINUE THE EXPERIMENTS. IT IS THEREFORE NECE SSARY TO 1) BROADEN THE BASIC ECOLOGICAL KNOWLEDGE ON TROPICAL ENDOGEIC EARTHWORMS AND THEIR EFFECTS ON SOIL PROCESSES AND CROP PRODUCOTION, NECESSARY TO IDENTIFY ADAPTABLE AND PERFORMING SPECIES FOR INTRODUCTION; APPLY THAT KNOWLEDGE TO 2) REPEAT SUCCESSFULL SMALL-SCALE EXPERIMENTS AT THE REAL SCALE OF A FARMER'S PLOT; AND 3) TEST THE FEASIBILITY OF EARTHWORM INTRODUCTION TO RESTORE DEGRADED SOILS; 4) TEST FOR THE CULTURAL ACCEPTABILITY AND ECONOMIC PROFITABILITY OF TECHNIQUES DERIVED FROM THIS RESEARCH. RESEARCH INTEGRATES SIX RESEARCH THEMES I.E. 1) IDENTIFY POSSIBLY ADAPTABLE SPECIES ON THE BASIS OF THEIR WIDE DISTRIBUTION AND/OR TOLERANCE FOR SPECIFIC ENVIRONMENT CONDITIONS; THE OBJECTIVE IS TO INTEGRATE 400 SPECIES FROM TROPICAL AMERICA, AFRICA AND INDIA IN THE DATABASE ORGANISED IN THE STD2 PROJECT; 2) INVESTIGATE ECOLOGICAL PERFORMANCES OF 10 SPECIES WITH WIDE ECOLOGICAL TOLERANCE SELECTED FROM THE DB IN ITS PRESENT STATE (160 SPECIES; 700 SITES); 3) ASSESS EFFECTS ON SOIL PROCESSES AND FERTILITY IN SHORT-SCALE DESIGNS; ONGOING EXPERIMENTS ON SOIL ORGANIC MATTER DYNAMICS USING NATURAL 13C LABELLING WILL BE CONTINUED AT LAMTO (IVORY COAST) AND YURIMAGUAS (PERU); MORE SMALL-SCALE EXPERIMENTS WILL EVALUATE A RANGE OF SOIL-CROP-EARTHWORM INTERACTIONS IN MEXICO AND COSTA RICA (4 SOILS, 3 CROPS 3-5 EARTHWORM SPECIES): 4) DEVELOP EXPERIMENTATION AT A REAL SCALE TO EVALUATE THE PRACTICAL FEASIBILITY OF THE TECHNIQUE AT YURIMAGUAS WHERE PROMISING RESULTS HAVE BEEN OBTAINED AND SUITABLE CONDITIONS FOR AGRONOMIC EXPERIMENTATION ARE AVAILABLE; TWO OPTIONS WILL BE CONSIDERED I.E. A- THE DIRECT INTRODUCTION, JUST AFTER CLEARING OF THE FOREST, OF A MINIMUM QUANTI TY OF EARTWORMS PRODUCED IN LABORATORY CULTURES (60KG HA-1) IN THE ORIGINAL FOREST, ONE YEAR BEFORE CLEARING TO ALLOW NATURAL MULTIPLICATION OF POPULATIONS TO INCREASE BIOMASS UNTIL SUITALBE LEVELSL 5) CONSIDER THE APPLICATION TO THE REGENERATION OF DEGRADED SOILS; Ámbito científico natural sciencescomputer and information sciencesdatabasessocial sciencessociologydemographyfertilityagricultural sciencesagriculture, forestry, and fisheriesagricultureagricultural sciencesagricultural biotechnologybiomass Programa(s) FP3-STD 3 - Specific research and technological development programme (EEC) in the field of the life sciences and technologies for developing countries, 1990-1994 Tema(s) Data not available Convocatoria de propuestas Data not available Régimen de financiación CSC - Cost-sharing contracts Coordinador Institut Français de Recherche Scientifique pour le Développement en Coopération (ORSTOM) Aportación de la UE Sin datos Dirección 70-74 route d'Aulnay 93143 Bondy Francia Ver en el mapa Coste total Sin datos Participantes (7) Ordenar alfabéticamente Ordenar por aportación de la UE Ampliar todo Contraer todo Institut Français de Recherche Scientifique pour le Développement en Coopération - ORSTOM Martinica Aportación de la UE Sin datos Dirección 15,Rue Raymond Garcin 97259 Fort-de-France Ver en el mapa Coste total Sin datos Instituto de Ecologia A.C. México Aportación de la UE Sin datos Dirección KM 2.5,Antigua Carretera a Coatepec 91000 Xalapa - Veracruz Ver en el mapa Coste total Sin datos Landbouwuniversiteit Wageningen Países Bajos Aportación de la UE Sin datos Dirección 10,Duivendaal 6701 AR Wageningen Ver en el mapa Coste total Sin datos North Carolina State University Perú Aportación de la UE Sin datos Dirección 1894,Javier Prado Este Lima Ver en el mapa Coste total Sin datos Sambalpur University India Aportación de la UE Sin datos Dirección TH 715 768019 Jyoti Bihar Ver en el mapa Coste total Sin datos UNIVERSIDAD COMPLUTENSE DE MADRID España Aportación de la UE Sin datos Dirección Isaac Peral 28040 MADRID Ver en el mapa Coste total Sin datos Université Nationale du Rwanda Ruanda Aportación de la UE Sin datos Dirección Campus Universitaire de Butaré Butaré Ver en el mapa Coste total Sin datos
