Results 91 to 100 of about 6,590 (223)

Effects of eucalyptus thinning on soil chemical attributes in an unfertilized silvopastoral system 6 years after thinning

Soil Science Society of America Journal, Volume 90, Issue 1, January/February 2026.
Abstract Tree thinning is a common practice in silvopastoral systems, but there is no standard percentage of thinning used by farmers. Moreover, it is unclear how the percentage of thinning affects soil chemical attributes throughout the soil profile and throughout the transect between eucalyptus lines.
Wander Luis Barbosa Borges, Marcelo Andreotti, Luan Carlos Pianta da Cruz, Douglas Yuri Osaki de Oliveira, João Francisco Borges, Laryssa de Castro Silva   +5 more
wiley   +1 more source

Growth and senescence of Urochloa brizantha under Brazilian Cerrado conditions

African Journal of Agricultural Research, 2017
The growth and senescence of Urochloa brizantha cv. Marandu were analyzed under the Brazilian Cerrado conditions. The seeds were sowed in November at the beginning of the rainy season. Samples of tillers were collected. The culms, inflorescences, along with green and dead leaves were removed to obtain leaf area and dry matter measurements.
de Aquino Portes Tomás, de Melo Ferreira Adriano, de Melo Peixoto Murilo, Cabral de Melo Hyrandir   +3 more
openaire   +2 more sources

Adubação nitrogenada de sorgo granífero consorciado com capim em sistema de plantio direto. [PDF]

, 2019
O objetivo deste trabalho foi avaliar o efeito do manejo da adubação nitrogenada sobre a cultura do sorgo granífero, cultivado solteiro e em consócio com capim-marandu e capim-mombaça, e determinar a produtividade de matéria seca das forrageiras, nos ...
BORGHI, E., COSTA, C., CRUSCIOL, C. A. C., MATEUS, G. P., PARIZ, C. M., SILVEIRA, J. P. F. da   +5 more
core   +1 more source

Plant Growth‐Promoting Rhizobacteria Impacting Forage Mass of Urochloa ruziziensis and Megathyrsus maximus: A Reliable New Strategy for Tropical Pastures

Grass and Forage Science, Volume 81, Issue 1, January-March 2026.
ABSTRACT Brazil is known for its extensive livestock production in pastures, supporting the world's second‐largest herd of cattle and being the leading beef exporter. However, livestock farming in Brazil has frequently been associated with soil degradation and greenhouse gas (GHG) emissions.
Gabriel Silva Guimarães, Artur Berbel Lirio Rondina, Bruno Fernandes Canelossi, Marco Antonio Nogueira, Mariangela Hungria   +4 more
wiley   +1 more source

Phytoremediation of soils contaminated with picloram by Urochloa brizantha

Pesquisa Agropecuária Tropical, 2014
Picloram is an herbicide that presents a high persistence in the soil and may severely harm crops in rotation and the environment. The phytoremediation of contaminated areas has been investigated in order to decrease the persistence and environmental impacts of this herbicide.
Franco, Miguel Henrique Rosa, França, André Cabral, Albuquerque, Marco Túlio, Schiavon, Nykolas Carvalho, Vargas, Guto Nascimento   +4 more
openaire   +2 more sources

Taxa de acúmulo de matéria seca e biomassa aérea de uma pastagem de capim braquiária. [PDF]

, 2012
Esse estudo faz parte do projeto de pesquisa denominado "Variabilidade espacial dos índices de qualidade do solo para sistemas agropecuários Qualisolo".
ALMEIDA, C. G. F. DE, GIMENES, F. M. DE A., GREGO, C. R., OLIVEIRA, A., RODRIGUES, C. A. G.   +4 more
core   +1 more source

Modelos empíricos para estimar o acúmulo de matéria seca de capim marandu com variáveis agrometeorológicas. [PDF]

, 2013
O objetivo deste estudo foi testar modelos empíricos de regressão linear, para a predição do acúmulo de matéria seca (TAMS) de Urochloa brizantha cv. Marandu, em função de variáveis agrometeorológicas. Para gerar os modelos, foi utilizada a taxa média de
ARAUJO, L. C., CRUZ, P. G., OLIVEIRA, P. P. A., PEZZOPANE, J. R. M., SANTOS, P. M.   +4 more
core   +1 more source

Genetic Parameters of Resilience Indicators Across Growth in Beef Heifers and Their Associations With Weight, Reproduction, Calf Performance and Pre‐Weaning Survival

Journal of Animal Breeding and Genetics, Volume 143, Issue 1, Page 79-91, January 2026.
ABSTRACT In tropical extensive beef cattle systems, heifers raised on pasture are exposed to various environmental challenges that affect their growth and reproductive performance during the first breeding. Resilience indicators derived from deviations in longitudinal traits can quantify the magnitude of these challenges and the ability of an animal to
Gustavo R. D. Rodrigues, Júlia P. S. Valente, Vanessa T. Rezende, Luis F. C. Araújo, João B. Silva Neto, Lúcio F. M. Mota, Mário L. Santana, Roberta C. Canesin, Sarah F. M. Bonilha, Lucia G. Albuquerque, Maria E. Z. Mercadante, Joslaine N. S. G. Cyrillo   +11 more
wiley   +1 more source

Distribuição horizontal e vertical de fósforo em sistemas de cultivos exclusivos de soja e de integração lavoura-pecuária-floresta. [PDF]

, 2017
O objetivo deste trabalho foi avaliar a distribuição horizontal e vertical do fósforo no solo e a produtividade de soja em sistemas de cultivos exclusivos e de integração lavoura-pecuária-floresta (ILPF). Foram avaliados os tratamentos: floresta plantada
BEHLING, M., DIEL, D., FARIAS NETO, A. L. de, ISERNHAGEN, E. C. C.   +3 more
core   +1 more source

Screening of Grasses’ Chemical Composition Variability and Methane Emissions in Colombian Livestock Ecoregions Using Digital Bromatology

International Journal of Agronomy, Volume 2026, Issue 1, 2026.
Grasses’ nutritional characteristics and management are fundamental for grazing cattle to guarantee sustainability in tropical conditions. This study aims to analyze the pastures’ chemical composition variability and methane emissions in different Colombian ecoregions and productive activities using digital bromatology data.
Mauricio Vélez-Terranova, Raúl Andrés Molina-Benavides, Rómulo Campos-Gaona, Juan David Morales, Arcesio Salamanca-Carreño, David Calero-Quintero, Atin Kumar   +6 more
wiley   +1 more source