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O objetivo deste trabalho foi avaliar a influência de dois sistemas de cultivo orgânico sobre crescimento, fenologia, nutrição e produtividade de cultivares de cafeeiro, e sobre as características químicas do solo. Seis cultivares de café foram avaliadas em monocultura a pleno sol e em cultivo sombreado com banana e Erythrina verna, em delineamento de blocos ao acaso, com quatro repetições. O sombreamento reduziu a taxa de crescimento das cultivares nos primeiros 15 meses de cultivo. Depois de três anos reduziu, também, o diâmetro, o número de ramos produtivos e de nós dos cafeeiros; aumentou a área foliar e o tamanho dos grãos; reduziu o teor de K do solo, e aumentou os teores de N e de Mg nas folhas do café. Na primeira etapa da colheita (março/2004), a produtividade média das cultivares foi menor no sistema sombreado, o que evidencia que o sombreamento retarda a maturação dos grãos. Na segunda etapa (junho/2004), houve diferença entre cultivares, porém não entre os sistemas de cultivo. A produtividade média total (soma das duas etapas) foi igual nos dois sistemas de cultivo. As cultivares Tupi, Icatu e Obatã são as mais promissoras para o cultivo sombreado. The objective of this work was to evaluate the influence of two organic cultivation systems on the growth, phenology, nutrition, and productivity of coffee cultivars, as well as on soil chemical characteristics. Six coffee cultivars were evaluated under both a monoculture system under full sun, and an intercropped system with banana and Erythrina verna plants for shading. The experimental design adopted was the randomized blocks with four replicates. The shading reduced the growth rate of cultivars only during the first 15 months of cultivation. After three years of cultivation, the shading reduced the plant diameter, the number of branches and the number of nodes; increased the leaf area and grain size; reduced soil K content and increased N and Mg contents in coffee plant leaves. In the first harvesting (March 2004), the average yield of the cultivars was smaller in the shading system showing that this treatment delayed grain maturity. In the second harvesting (June 2004), there were differences among cultivars, but not between cropping systems. Yield total average for the two harvestings was the same in the two systems. The cultivars Tupi, Icatu, and Obatã are more promising in shading system

Cultivo orgânico de cultivares de café a pleno sol e sombreado