Winter Cover Crops
Mostrando 1-12 de 29 artigos, teses e dissertações.
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1. Is Increasing Doses of Imazapyr + Imazapic Detrimental to the Main Crop Rotation Alternatives to Flooded Rice?
RESUMO: A mistura formulada de imazapyr + imazapic é o principal herbicida usado para o controle de plantas daninhas em arroz no sistema Clearfield®. O uso contínuo de altas doses pode aumentar sua atividade residual no solo. O objetivo deste trabalho foi determinar a sensibilidade de culturas de cobertura e soja em rotação com arroz irrigado a diferent
Planta daninha. Publicado em: 02/12/2019
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2. Soil physical properties and soybean productivity in succession to cover crops
ABSTRACT The objective of this research was to assess soybean productivity in succession to cover crops grown during the winter, in addition to assessing physical properties macroporosity (Ma), microporosity (Mi), total porosity (Pt), soil density (Sd) and aggregate stability by means of the following variables: aggregate stability index, geometric mean diam
Rev. Ceres. Publicado em: 03/10/2019
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3. Characterization of the Weed Flora in Rice Areas under Distinct Cropping Systems and Herbicide Managements
RESUMO: O objetivo deste trabalho foi avaliar a ocorrência de plantas daninhas em arroz irrigado por inundação, em função do sistema de plantio e do manejo de herbicidas na safra anterior. O experimento foi instalado em campo, em delineamento experimental de blocos casualizados dispostos em esquema fatorial 3 x 2, com oito repetições. O fator A foi o
Planta daninha. Publicado em: 30/09/2019
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4. Thermo-physical-hydraulic variables in a no-tillage system related to wheeled traffic and furrow-opening mechanisms
Resumo: O objetivo deste trabalho foi avaliar o impacto do uso de sulcadores de fertilizantes nas características físicas do solo, como mobilização, porosidade, densidade, e dinâmica do teor de água e da temperatura no sulco de semeadura, bem como a influência do tráfego do rodado do trator e dessas variáveis na produtividade do milho (Zea mays). O
Pesq. agropec. bras.. Publicado em: 05/09/2019
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5. Performance of Flooded Rice Grown in Succession to Winter Cover Crops
ABSTRACT: Mean grain yield of flooded rice in southern Brazil has increased in recent years due to the use of high-yield cultivars and improvement of crop management practices. Nevertheless, stagnation in grain yields has been observed in some rice-producing regions. Adoption of conservation tillage systems based on cover crops may be a strategy to increase
Rev. Bras. Ciênc. Solo. Publicado em: 15/02/2018
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6. Water Erosion in a Long-Term Soil Management Experiment with a Humic Cambisol
ABSTRACT Water erosion, the main factor in soil degradation, is strongly influenced by soil cover and management. The objective of this study was to determine soil and water losses under natural rainfall conditions from 1993 to 2012 in the southern Santa Catarina Plateau, Brazil, in 3.5 × 22.1 m plots with crops in rotation to study the following management
Rev. Bras. Ciênc. Solo. Publicado em: 24/08/2017
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7. Plant parameters and must composition of ‘Syrah’ grapevine cultivated under sequential summer and winter growing seasons
ABSTRACT Plant variables and must physicochemical properties were evaluated for the grapevine ‘Syrah’ cultivated in sequential growing seasons (summer and winter) from 2011 to 2015. The vines were trellised in vertical shoot position, grafted on Paulsen 1103, with approximate density of 5,800 plants∙ha−1. They were grown under plastic overhead cover.
Bragantia. Publicado em: 15/05/2017
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8. Brachiaria as a Cover Crop to Improve Phosphorus Use Efficiency in a No-till Oxisol
ABSTRACT Oxidic soils are phosphorus drains in soil; hence, P availability is a limiting factor in tropical, weathered Oxidic soils. It has been shown that some brachiarias grown as cover crops may increase soil available P to subsequent crops. The objective of this study was to evaluate soil P cycling and availability, as well as the response of soybean to
Rev. Bras. Ciênc. Solo. Publicado em: 19/09/2016
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9. Atributos físicos do solo, produção de biomassa e balanço energético em sistema de integração lavoura-pecuária leiteira sob plantio direto / Soil physical attributes, production of biomass and energy balance in system integration crop livestock dairy in tillage
The integrated crop-livestock allow a series of advantages, but the intensive land use without technical criteria regarding the grazing pressure and machinery traffic can bring damage to soil physical quality, as manifested by compression. In these more intensive systems of production there is growing concern in relation to energy balance. The large amount o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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10. DINÂMICA DO FÓSFORO EM SOLO MUITO ARGILOSO SOB DIFERENTES PREPAROS DE SOLO E CULTURAS DE INVERNO / DYNAMICS OF PHOSPHORUS IN VERY CLAYEY SOIL UNDER DIFFERENT SOIL MANAGEMENT SYSTEM AND WINTER CROPS
O cultivo de plantas com diferentes habilidades de aquisição e absorção de fósforo (P) sob diferentes sistemas de preparo de solo por um longo período de tempo pode alterar a ciclagem e a distribuição das formas de P no solo. O objetivo do presente trabalho foi avaliar a dinâmica do P num solo muito argiloso de região subtropical, originalmente cob
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2011
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11. Variation on the amount of winter cover crops residues on weeds incidence and soil seed bank during an agricultural year
This study analyzed possible interferences associated to the amount of crop residues produced by the black oats and the consortium of black oats, common vetch and forage turnip on weeds incidence and soil seed bank. It was a field trial with seven treatments and five replications. The cover crop was sown at throwing, cut at 100 days and residues were put on
Brazilian Archives of Biology and Technology. Publicado em: 2011-08
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12. Effect of intercropping wheat with forage legumes on wheat production and ground cover.
The use of winter legumes in southern Brazil is hindered by the slow growth of these species during establishment exposing soil surface to erosion. Introduction of these species along with spring wheat (Triticum aestivum L.) was studied as a means of increasing ground cover during their initial establishment period, without reducing wheat grain yield. Two ex
Pesquisa Agropecuaria Brasileira. Publicado em: 2011