Fertilidade do solo sob sistemas de produção de subsistência, agrofloresta e vegetação remanescente em Esperantina, Tocantins

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2010-06

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In this work, which was carried out in Esperantina, State of Tocantins, soil fertility parameters were measured in an area cultivated through agroforestry, subsistence farming and native tropical vegetation. Soil and litter were collected in rainy and in dry season with 10 replicates. Nutrient levels were very low in both seasons. Rice and maize cultivation areas presented the highest levels, possibly due to burn practice and mineral fertilizer residues. Organic matter levels of SAF were the same as those of native tropical forest vegetation. The litter obtained on SAF in both seasons contrasts with the low nutrients levels obtained, what could contribute to the maintenance of the production capacity of the agroecosystem.

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Agrofloresta, Serapilheira, Ciclagem de nutrientes, Agroforestry, Nutrients cycling, Litter

Citação

COLLIER, Leonardo Santos; ARAÚJO, Gelma da Penha. Fertilidade do solo sob sistemas de produção de subsistência, agrofloresta e vegetação remanescente em Esperantina, Tocantins. Floresta e Ambiente, Rio de Janeiro, v. 17, n. 1, p. 12-22, 2010.