Winter Soybean
Mostrando 1-12 de 42 artigos, teses e dissertações.
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1. SIMULATING CROP YIELD, SOIL NITROGEN, AND ORGANIC CARBON IN NO-TILLAGE CROP SEQUENCES IN A SUBTROPICAL CLIMATE IN BRAZIL
ABSTRACT Brazil stands out worldwide for its high grain production in areas of direct sowing. The objective of this study was to simulate and assess the relationship of soil organic carbon content and nitrogen, crop yield, and biomass of two crop sequences under the no-tillage system in a subtropical region of São Paulo, Brazil, using CSM-CROPGRO-Soybean an
Eng. Agríc.. Publicado em: 2020-08
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2. 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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3. 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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4. Suficiência amostral para avaliação da fauna epiedáfica com o método Provid
Resumo O solo é habitado por milhares de organismos responsáveis por diversas funções e processos no ecossistema. Por apresentar uma grande sensibilidade às modificações do meio, a fauna do solo é considerada um bom bioindicador de qualidade do solo. Entretanto, uma amostragem inadequada pode inviabilizar sua utilização em estudos de impacto ambien
Ciênc. Florest.. Publicado em: 30/05/2019
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5. Incidence of Bemisia tabaci Gennadius (Aleyrodidae, Aleyrodinae) in four Atlantic Forest fragments
RESUMO: Bemisia tabaci é conhecida no Brasil desde 1923, relatada em cultivos de algodão, soja, tomate e feijoeiro, promovendo prejuízos econômicos por ser transmissora de viroses. São praticamente inexistentes os trabalhos que analisam sua ocorrência em ambiente florestal. Nesse sentido, o objetivo deste trabalho foi estudar a ocorrência de B. tabaci
Arq. Inst. Biol.. Publicado em: 30/05/2019
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6. Risks associated with a double-cropping production system - a case study in southern Brazil
ABSTRACT: This study assessed the risk exposure of the production system of a typical farm in southern Brazil. Five possible production systems were analyzed, combining three crops (soybeans, corn seasons and wheat) in different crop-year combinations, for example: “Summer soybeans followed by corn” and “Autumn corn followed by winter wheat”. Five di
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-04
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7. Crop Response to Gypsum Application to Subtropical Soils Under No-Till in Brazil: a Systematic Review
ABSTRACT The use of gypsum to improve the root environment in tropical soils in the southeastern and central-western regions of Brazil is a widespread practice with well-established recommendation criteria. However, only recently gypsum began to be used on subtropical soils in South of Brazil, so available knowledge of its effect on crop yield is incipient a
Rev. Bras. Ciênc. Solo. Publicado em: 15/02/2018
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8. Cover crop rotations in no-till system: short-term CO2 emissions and soybean yield
ABSTRACT: In addition to improving sustainability in cropping systems, the use of a spring and winter crop rotation system may be a viable option for mitigating soil CO2 emissions (ECO2). This study aimed to determine short-term ECO2 as affected by crop rotations and soil management over one soybean cycle in two no-till experiments, and to assess the soybean
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-01
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9. Nitrogen Fertilization of No-Tillage Winter Cereals in the South-Central Region of Paraná, Brazil
ABSTRACT High winter cereal yields depend on an adequate supply of nitrogen (N). We developed a system for indicating N rates for wheat and barley in the South-Central region of the state of Paraná, Brazil, using results of 72 field experiments conducted from 2007 to 2012. The N rates recommended for winter cereals were estimated to supply the amounts of N
Rev. Bras. Ciênc. Solo. Publicado em: 09/11/2017
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10. 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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11. Potassium Fertilization for Long Term No-Till Crop Rotation in the Central-Southern Region of Paraná, Brazil
ABSTRACT Fertilization programs for annual crops in the state of Paraná, southern Brazil, are based on studies that focused on conventional tillage and were established more than 30 years ago. The primary purpose of this study was to assess potassium (K) fertilization on long-term (>30 years) no-tillage soybean, corn, wheat, and barley crops grown in rotati
Rev. Bras. Ciênc. Solo. Publicado em: 19/09/2016
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12. Crescimento de crambe na presença ou ausência de competição interespecífica
RESUMOCrambe (Crambe abyssinica) has a cropping cycle of around 90 days, being suitable as an alternative to the second grain crop planted after soybean is harvested in the Center West region of Brazil. It is necessary to understand the growth and development dynamics of crambe plants in order to allow correct management of the production factors. This study
Rev. Ceres. Publicado em: 2015-10