Results 51 to 60 of about 300 (158)

GERMINAÇÃO E DESENVOLVIMENTO DO FEIJÃO BRAVO-DO-CEARÁ (Canavalia brasiliensis) EM DIFERENTES PROPORÇÕES DE COMPOSTO ORGÂNICO [PDF]

open access: yesCadernos de Cultura e Ciência, 2012
O feijao bravo-do-ceara ( Canavalia brasiliensis ) e uma planta anual ou bianual, herbacea, de crescimento prostrado, apresentando grande potencial de producao de biomassa e rusticidade durante periodos de deficiencia hidrica, devido ao sistema radicular agressivo, que absorve agua e nutrientes a maiores profundidades do solo. O substrato pode afetar a
Vanessa Oliveira Teles   +3 more
openaire   +1 more source

Chemical composition and thermal stability of topsoil organic carbon: Influence of cropping system and tillage practices

open access: yesEuropean Journal of Soil Science, Volume 75, Issue 1, January–February 2024.
Abstract Agricultural management practices play a significant role in regulating the potential for soil organic carbon (SOC) sequestration. The objective of this study was to determine the effects of cropping systems and tillage practices on the chemistry and thermal stability of topsoil SOC in a long‐term field study in Ontario, Canada.
M. Mesgar   +4 more
wiley   +1 more source

Soil fertility status, carbon and nitrogen stocks under cover crops and tillage regimes

open access: yesRevista Ciência Agronômica, 2014
The aim of the present study was to evaluate the effects of cover crops on the soil's chemical fertility, in particular its carbon and nitrogen content, in a Typic Acrustox under conventional and no-tillage corn systems.
Arminda Moreira de Carvalho   +3 more
doaj  

Decomposição de resíduos vegetais em latossolo sob cultivo de milho e plantas de cobertura Decomposition of plant residues in latosol under corn crop and cover crops

open access: yesRevista Brasileira de Ciência do Solo, 2008
A degradação dos solos pode ocorrer pelo seu preparo intensivo, combinado com monocultivos que produzem pequenas quantidades de resíduos vegetais com decomposição acelerada.
Arminda Moreira de Carvalho   +3 more
doaj   +1 more source

Producción de forraje en leguminosas tropicales, en el Caribe seco colombiano

open access: yesPastos y Forrajes, 2019
El objetivo de este estudio fue evaluar la producción de forraje en accesiones de Canavalia brasiliensis Mart. ex Benth., Canavalia ensiformis (L.) DC. y Vigna unguiculata (L.) Walp.
Esteban Burbano-Erazo   +4 more
doaj  

Weed suppression by green manure in an agroecological system

open access: yesRevista Ceres, 2015
Green manure promotes efficient suppression of weeds, but green manure species can exhibit distinct behaviors, depending on the environmental conditions.
Katia Maria Garicoix Recalde   +5 more
doaj   +1 more source

Evaluación de genotipos de Canavalia brasiliensis Mart. ex Benth. para producción de semilla en el Caribe colombiano

open access: yesNutrición Animal Tropical, 2020
La capacidad de producir semilla, en leguminosas forrajeras facilita la adopción y conservación de estas especies por parte de los productores. El objetivo de este trabajo fue evaluar genotipos de Canavalia brasilienses Mart. ex Benth. para producción de semilla.
Darwin Fabian Lombo-Ortiz   +4 more
openaire   +2 more sources

Differential effect of plant lectins on mast cells of different origins

open access: yesBrazilian Journal of Medical and Biological Research, 2005
Histamine release induced by plant lectins was studied with emphasis on the carbohydrate specificity, external calcium requirement, metal binding sites, and mast cell heterogeneity and on the importance of antibodies bound to the mast cell membrane to ...
F.C. Lopes   +4 more
doaj   +1 more source

Characterization of cover crops by NMR spectroscopy: impacts on soil carbon, nitrogen and phosphorus under tillage regimes

open access: yesRevista Ciência Agronômica
The objective of this study was to investigate the chemical composition of cover crops by solid-state CPMAS 13C NMR spectroscopy and its effects on carbon, nitrogen and phosphorus in a Typic Acrustox.
Arminda Moreira de Carvalho   +4 more
doaj   +1 more source

Perfil de proteases de lesões cutâneas experimentais em camundongos tratadas com a lectina isolada das sementes de Canavalia brasiliensis [PDF]

open access: yesCiência Rural, 2009
O objetivo deste estudo foi determinar o perfil de proteases em lesões cutâneas experimentais tratadas com a lectina isolada das sementes da Canavalia brasiliensis (ConBr) livre e conjugada com o seu açúcar específico. Lesões cirúrgicas foram produzidas assepticamente na região dorsal de camundongos (n=120), divididos de acordo com o tratamento ...
Silva, Flávio de Oliveira   +8 more
openaire   +3 more sources

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