DSpace Collection: Comunicado Técnico (CNPGC)

Viabilidade de sementes de Arachis pintoi pelo teste de tetrazólio.

Thu, 24 Jan 2013 22:58:59 GMT

Title: Viabilidade de sementes de Arachis pintoi pelo teste de tetrazólio.

Authors: ASSIS, G. M. L. de; KRZYZANOWSKI, F. C.; VERZIGNASSI, J. R.; VALENTIM, J. F.

Dependência micorrízica de diferentes culturas anuais, adubos verdes e pastagens em solos de cerrado.

Wed, 24 Aug 2011 22:58:59 GMT

Title: Dependência micorrízica de diferentes culturas anuais, adubos verdes e pastagens em solos de cerrado.

Authors: MIRANDA, J. C. C. de; MIRANDA, L. N. de.

Description: ABSTRACT: The arbuscular mycorrhizal fungi in the soil may establish an association with plant roots (mycorrhiza) which benefits the nutrient absorption by the plants and increase the effects of the applied inputs on plant growth. Then, to make profit of this association, it is recommended to increase and diversity fungi in the soil, mainly in those where its population is generally low, as in the cerrado soil. The crop rotation is an agronomic practice that improves the propagation of the arbuscular mycorrhizal fungi in the soil and stimulates mycorrhiza establishment and its effects in plant growth. An adequate rotational sequence to improve formation impplies in the use of mycorrhizal dependent cultures. A table, indicating the percentage of mycorrhizal dependency of different cultures, is presented.

Espécies para arborização de pastagens.

Wed, 24 Aug 2011 22:58:59 GMT

Title: Espécies para arborização de pastagens.

Authors: MELO, J. T. de; ZOBY, J. L. F.

Description: ABSTRACT: The main of arborization of grasslands is the comfort supplied to the animals by the shadow of the trees, which not only increases the milk production but also improves the reproduction of the cows. In hot regions and shadowed areas, the grazing behavior of animals is changed resulting in better distribution of rumination during the day and more time for animals to rest. An experiment to select species for arborization of grasslands in the Cerrado areas was installed in Planaltina-DF, on a grassland of Brachiaria decumbens. In this experiment 21 species were evaluated. Based on tree height, trunk diameter, tree canopy and survival after 57 months, the best species for grasslands arborization were: Jacaré (Piptadenia gonoacantha (Mart.) J. F. Macbr, Tamboril (Enterolobium contortisiliquum (Vell.) Morong., Angico-do-cerrado (Anadenanthera falcata (Benth.) Speg., Eucalyptus citriodora Hook, Eucalyptus urophylla S. T. Blake, Mata-cachorro (Simarouba versicolor A. St. Hill.

Colheita de sementes de Brachiaria humidicola pelo método de sucção.

Tue, 31 Aug 2010 22:58:59 GMT

Title: Colheita de sementes de Brachiaria humidicola pelo método de sucção.

Authors: TEIXEIRA, R. N.; VERZIGNASSI, J. R.

Description: Colheita pelo método de sucção. Etapas da colheita. Vantagens do método. Desvantagens do método.