Results 91 to 100 of about 6,534 (217)

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

open access: yesInternational 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   +6 more
wiley   +1 more source

Componentes de Rendimento do Milho Cultivado em Consorcio com Braquiarias em Diferentes Arranjos de Semeadura [PDF]

open access: yes, 2014
TCC (graduação)- Universidade Federal de Santa Catarina. Campus Curitibanos. Agronomia.O consórcio do milho com espécie forrageira vem sendo utilizado a vários anos por produtores , mas ultimamente esta técnica tem se tornando mais comum em todo o Brasil.
Basso, Kelem Cristina   +4 more
core  

Soil Phosphorus Fractions: Effects of Silicate Amendments and Phosphorus Sources in Brazilian Tropical Soils

open access: yesJournal of Sustainable Agriculture and Environment, Volume 4, Issue 4, December 2025.
ABSTRACT This study evaluated the effects of alternative phosphorus (P) sources and soil pH amendments on P fractions and soil chemical properties in two contrasting Brazilian tropical soils. A greenhouse experiment was conducted using a sandy Arenosol and a clayey Ferralsol treated with triple superphosphate (TSP), reactive phosphate (RP), or ...
Lucas Jónatan Rodrigues da Silva   +5 more
wiley   +1 more source

Operational parameters of soybean seeding in santa fe system Parâmetros operacionais de semeadura de soja em sistema santa fé

open access: yesEngenharia Agrícola, 2012
The use of no tillage system associated with the crop-livestock integration is an alternate managing that promotes the accumulation of dry matter in the soil, an essential fact to make the system sustainable and profitable.
Carlos A. Chioderoli   +4 more
doaj   +1 more source

Teor de nitrogênio inorgânico no solo em função de plantas de cobertura, fontes de nitrogênio e inibidor de nitrificação. [PDF]

open access: yes, 2013
A utilização de plantas de cobertura pode alterar a relação NO3 -:NH4 + no solo, proporcionando maiores quantidades de NH4 + e podendo viabilizar o desenvolvimento de culturas que absorvem mais e preferem esta forma de nitrogênio (N), como o arroz ...
CANTARELLA, H.   +3 more
core   +4 more sources

Growth and senescence of Urochloa brizantha under Brazilian Cerrado conditions

open access: yesAfrican 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   +3 more
openaire   +2 more sources

Widespread negative effects of Leucaena leucocephala (white‐popinac) invasion on regenerating areas of the Atlantic Forest

open access: yesEcological Solutions and Evidence, Volume 6, Issue 4, October–December 2025.
Fragment of Atlantic Forest (left) naturally regenerating in an abandoned pasture (centre) and being invaded by a large patch of white‐popinac (Leucaena leucocephala; right). This image summarizes the scenario of invasion by white‐popinac that is directly threatening forest regeneration and its native diversity.
Juliano Zardetto   +2 more
wiley   +1 more source

Mapeamento das épocas aptas para o plantio de milho consorciado com braquiária na segunda safra agrícola no Brasil. [PDF]

open access: yes, 2014
bitstream/item/95971/1/circ-187 ...
GUIMARAES, D. P.   +2 more
core  

Phytoremediation of soils contaminated with picloram by Urochloa brizantha

open access: yesPesquisa 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   +4 more
openaire   +2 more sources

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