MICROCLIMA EM SISTEMA DE CULTIVO DE CAFEEIROS ARBORIZADOS E A PLENO SOL

Intercropping coffee tree with wood species promotes by its diversification, the growing of green mass, increased soil fertility, protection against frost and excessive insolation and increases the farmers' incomes with wood, fruits and latex production etc. Besides, intercropping coffees with wood species is considered one of the techniques for mitigation to global warming scenarios and its effects over the coffee crop. However, microclimate studies are necessary to quantify the effect of the trees over the coffee plants. The aim of this work was to evaluate the microclimate in intercropping coffee with wood species system and unshaded coffee. By using automatic weather stations installed in an experimental area at Instituto Agronomico do Parana - Londrina, PR, microclimates data were collected from October 2014 to march 2015. The results indicates that there was attenuation of incident solar radiation over the shaded coffee, caused by the treetop, ranging 45% to 62%, according to the tree management (pruning) and seasonality. The presence of the wood species in the coffee crop was important to reduce the maximum temperature and increase the minimum temperature comparing to unshaded coffee. Thus, from the climatic point of view, intercropping coffee with wood species presents positive characteristics comparing to unshaded and unprotected coffees.