%0 Conference Proceedings
%9 ACTI : Communications avec actes dans un congrès international
%A Carvalho, A.M. de
%A Correia, J.R.
%A Blancaneaux, Philippe
%A Freitas, L.R. da S.
%A Menezes, H.A.
%A Pereira, J.
%A Amabile, R.F.
%T Caracterizacao de especies de adubos verdes para o cultivo de milho emlatossolo vermelho-escuro originalmente sob cerrado
%S Biodiversidade e produçao sustentavel de alimentos e fibras nos cerrados = Biodiversity and sustainable production of food and fibers in the tropical savannas
%C Brasilia
%D 1996
%E Pereira, R. Carvalo
%E Nasser, L.C. Bhering
%L fdi:010015946
%G POR
%I EMBRAPA/CPAC
%K SAVANE ; FERTILISATION DU SOL ; ENGRAIS VERT ; RAPPORT C/N ; RECHERCHE AGRONOMIQUE ; RENDEMENT
%K BRESIL
%P 384-388
%U https://www.documentation.ird.fr/hor/fdi:010015946
%> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_7/b_fdi_51-52/010015946.pdf
%W Horizon (IRD)
%X The objective of this study was to evaluate the behaviour of green manure species, their potential as soil conditioners, and consequently their contribution to sustainable corn production. The green manure species (#Crotalaria juncea$, #Crotalaria ochroleuca$, #Cajanus cajan$, #Canavalia ensiformis$, #Mucuna aterrima$, #Brachiaria ruziziensis$) were sown at the end of the rainy season followed by corn, sown at the beginning of the following rainy season, during 1993/94 and 1994/95. The statistics design was random block design with four replications. The green manure species and spontaneous vegetation were cut at the soil surface level during the flowering period and incorporated into the soil before planting the corn. For green manures species dry matter, nodule's number and weight as well as C/N ratio, and for corn grain yield as well as weight of ears were determined. Rate of organic matter decomposition for different species also was measured. The #M. aterrima$ showed the highest value in terms of nodulation (number and weight). The rate of decomposition of #B. ruziziensis$ in "litter bags" was significantly (P > 0.01) higher than that of the other species, during the period of green manure coverage. #B. ruziziensis$, #C. cajan$ and #C. juncea$ showed C/N values significantly (P > 0.05) higher in comparison to the other plants. During 1993/94, corn yield on the former #C. juncea$ and #C. cajan$ treatments was significantly (P > 0.05) higher than on the #M. aterrima$ as well as the #B. ruziziensis$ and spontaneous vegetation treatment. In 1994/95, corn yields were significantly (P > 0.05) higher after #C. cajan$ and #C. ensiformis$ than after #B. ruziziensis$ and spontaneous vegetation. Therefore, the results show a positive influence of the legumes on corn yield. (Résumé d'auteur)
%B Simposio sobre o Cerrado; International Symposium on Tropical Savannas
%8 1996/03/24-29
%$ 076AGRO05