MYCORRHIZAL ACTIVITY AS A QUALITY INDICATOR IN FOREST LIVESTOCK CROP INTEGRATION SYSTEM WITH MANGABA - HANCORNIA SPECIOSA

Resumo

THE MODEL OF LIVESTOCK DEVELOPMENT IN THE CERRADO REGION (INTENSIVE USE OF THE LAND FACTOR) AND THE CHARACTERISTICS INHERENT TO THIS ACTIVITY (LOW RISK AND HIGH LIQUIDITY) CAUSED IT TO BE SEEN, FOR A LONG TIME, AS A CAPITAL RESERVE, INSTEAD OF AN ACTIVITY WHOSE ECONOMIC REMUNERATION FOR PRODUCTION STIMULATED ITS DEVELOPMENT AND IMPROVEMENT THROUGH INCREASING INVESTMENTS IN TECHNOLOGY. HOWEVER, WITH THE INCREASE IN REAL PRICES OF LAND SALES AND EXPANSION OF AGRICULTURE AND LIVESTOCK, INVESTMENTS IN TECHNOLOGY TO INCREASE THE PRODUCTIVITY OF THE LAND RESOURCE ARE INCREASINGLY ESSENTIAL TO ENSURE MINIMUM PROFITABILITY TO LIVESTOCK. THE STRATEGY OF OCCUPATION OF THE CERRADO BY LIVESTOCK ACTIVITY WAS VERY DIFFERENT FROM THAT FOUND IN GRAIN AGRICULTURE. THE EVOLUTION OF LIVESTOCK IN THE REGION FOCUSED, ALMOST EXCLUSIVELY, ON THE INTENSE USE OF THE LAND FACTOR TO THE DETRIMENT OF THE INTENSIFICATION IN THE USE OF CAPITAL. THUS, LIVESTOCK FARMING IN THE CERRADO WAS TRADITIONALLY CHARACTERIZED BY EXTRACTIVISM, WITH LIMITED USE OF INSUMS IN THE PRODUCTION SYSTEM THE DETERMINATION OF A QUALITY ASSESSMENT METHODOLOGY IS FUNDAMENTAL AS A MANAGEMENT AND DECISION-MAKING TOOL. IN THIS SENSE, THE OBJECTIVE OF THIS STUDY WAS TO EVALUATE MYCORRHIZAL ACTIVITY AS AN INDICATOR OF ENVIRONMENTAL QUALITY IN A SYSTEM OF CROP, LIVESTOCK AND FOREST INTEGRATION USING MANGABA.  THE OBJECTIVE OF THIS WORK WAS TO DETERMINE THE DENSITY OF SPORES IN RHIZOSPHERIC SOIL AND THE RATE OF MYCORRHIZAL COLONIZATION IN ROOTS OF ILPF SYSTEMS WITH MANGABA. TREATMENTS WERE EVALUATED: 1)  MANGABA + ARACHIS PINTOI./CALLOPOGONIUM MUCUNOIDES; 2)  MANGABA + CROTALARIA JUNCEA L;3)  MANGABA + DOLICHOS LABLAB L;4)  MANGABA + UROCHLOA DECUMBENS WITHOUT NITROGEN  AND; 5)  MANGABA + UROCHLOA DECUMBENS WITH NITROGENIO. TREATMENTS 1 AND  4 SHOWED HIGHER SPORE DENSITY VALUES. THERE WAS NO SIGNIFICANT DIFFERENCE IN MYCORRHIZAL COLONIZATION BETWEEN TREATMENTS