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Carbon, light organic matter and oxidizable organic fractions in alley cropping system PFB - Pesquisa Florestal Brasileira
Guareschi, Roni Fernandes; Pereira, Marcos Gervasio.
The objective of this study was to evaluate the levels of total organic carbon (TOC) of the soil, light organic matter (LOM) in water and oxidizable fractions of organic carbon in a cultivated area of maize in the alleys Flemingia macrophylla under different managements of their shoot. The study area is located in “Agroecological Fazendinha in Seropédica city, Rio de Janeiro, Brazil. The experimental design was randomized blocks with three treatments and eight replications, consisting of the following treatments: control (corn cultivation with no alleys); cultivation of maize in alley cropping with pruning to 0,6 m high and growing maize in alley cropping system without pruning. In each area composite samples were collected at 0-5 cm. The presence of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Labile carbon; Pruning system; Flemingia macrophylla Carbono lábil; Sistema de poda; Flemingia macrophylla.
Ano: 2013 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/450
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Tropical terrestrial model ecosystems for evaluation of soil fauna and leaf litter quality effects on litter consumption, soil microbial biomass and plant growth PAB
Förster,Bernhard; Garcia,Marcos; Höfer,Hubert; Morgan,Edward; Römbke,Jörg.
The aim of this work was to evaluate whether terrestrial model ecosystems (TMEs) are a useful tool for the study of the effects of litter quality, soil invertebrates and mineral fertilizer on litter decomposition and plant growth under controlled conditions in the tropics. Forty-eight intact soil cores (17.5-cm diameter, 30-cm length) were taken out from an abandoned rubber plantation on Ferralsol soil (Latossolo Amarelo) in Central Amazonia, Brazil, and kept at 28ºC in the laboratory during four months. Leaf litter of either Hevea pauciflora (rubber tree), Flemingia macrophylla (a shrubby legume) or Brachiaria decumbens (a pasture grass) was put on top of each TME. Five specimens of either Pontoscolex corethrurus or Eisenia fetida (earthworms),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brachiaria decumbens; Flemingia macrophylla; Hevea pauciflora; Diplopods; Earthworms; Isopods.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800040
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