Results 61 to 70 of about 18,346 (209)

Performance of Beef Cattle Under Grazing as Affected by Urochloa decumbens Cultivars

open access: yesGrass and Forage Science, Volume 81, Issue 2, April-June 2026.
ABSTRACT Testing animal performance under grazing is fundamental to determine the potential of recently released, high‐yielding Urochloa decumbens hybrids. The objective was to evaluate the weight gain of young bulls grazing on pastures of U. decumbens cultivars Basilisk, BRS Carinás, and BRS Poraitê, as well as to assess the nutritive value and plant ...
Gustavo José Braga   +4 more
wiley   +1 more source

Genetic conformity assessment of C35 citrange seedlings by SSR markers : [P6] [PDF]

open access: yes, 2008
C35 citrange rootstock has been widely investigated in the last decades in .mast countries that produce Citrus and knows an increasing interest of the citrus growers.
Appere, M.   +7 more
core  

Soil aggregation under different management systems [PDF]

open access: yes, 2012
Considering that the soil aggregation reflects the interaction of chemical, physical and biological soil factors, the aim of this study was evaluate alterations in aggregation, in an Oxisol under no-tillage (NT) and conventional tillage (CT), since over ...
Feller, C.   +4 more
core   +3 more sources

Nitrogen dynamics as a function of pH in soil cultivated with brachiarias

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 1, March 2026.
Abstract Brachiaria production is an important segment in Brazil's agriculture, used as a forage or animal feed. Studying the influence of Brachiaria sp. on soil nitrogen (N) dynamics under different soil pH and amendment conditions is a critical research need.
Jhonatas Gomes dos Reis   +4 more
wiley   +1 more source

Soil phosphorus properties and management for perennial crops in the central Amazon. [PDF]

open access: yes, 2014
Predominant soils in the Brazilian Amazon. Phosphorus constraints to continuous soil use in the Brazilian Amazon. Phosphorus fertilization to perennial crops in the central Amazon.
CRAVO, M. S.   +2 more
core  

Frações de fósforo no solo em resposta à adubação fosfatada em um Latossolo com diferentes históricos de uso. [PDF]

open access: yes, 2017
No sistema plantio direto existe tendência de melhor aproveitamento do P, sobretudo em áreas cultivadas há mais tempo, mas há, ainda, necessidade de confirmação deste fato.
CARNEIRO, L. F.   +6 more
core   +1 more source

Alterations in plant architecture and physiology allow maize to sustain yield after early defoliation

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 1, March 2026.
Abstract Maize (Zea mays L.) tolerance to early defoliation is shaped by genotype‐specific physiological and morphological responses. Defoliation disrupts the source–sink balance, altering carbon allocation and plant development. Understanding these responses is crucial for optimizing breeding programs and agronomic management.
Danielle de Oliveira   +8 more
wiley   +1 more source

Geoestatística e atributos do solo em áreas cultivadas com cana-de-açúcar Geostatistics and soil attributes in area cultivated with sugar cane

open access: yesCiência Rural, 2010
Em solos sob cultivo de cana-de-açúcar, o tráfego intenso de máquinas agrícolas pode provocar estado de compactação ao solo. Portanto, o objetivo deste trabalho foi caracterizar a variabilidade espacial de atributos físicos e teor de matéria orgânica de ...
Zigomar Menezes de Souza   +2 more
doaj  

Características de adsorção de fósforo em alguns solos da Amazônia Central Phosphorus adsorption characteristics in some Central Amazonian soils

open access: yesActa Amazonica, 2004
Com o objetivo de determinar as características de adsorção de fósforo utilizando-se a isoterma de Langmuir, e suas relações com algumas propriedades físicas e químicas de solos, foi desenvolvido um estudo no Laboratório de Solos do Instituto Nacional de
Newton Paulo de Souza Falcão   +1 more
doaj   +1 more source

BRS 328 - Double haploid bread wheat cultivar. [PDF]

open access: yes, 2018
The wheat cultivar 'BRS 328' was developed by Embrapa from a cross between KleinH3394 and PF 990744. The pre-harvest sprouting resistance of 'BRS 328' is good and the grain yieldhigh.
BRAMMER, S. P.   +7 more
core  

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