Rice Management
Mostrando 13-24 de 98 artigos, teses e dissertações.
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13. Soil cover management: initial development of pear trees hosui cultivar and its effects on soil and weeds
Resumo O manejo do solo é uma prática que pode ter marcante influência no desenvolvimento de frutíferas. Neste sentido, o objetivo do trabalho foi avaliar o efeito do uso de diferentes tipos de cobertura de solo no controle de plantas daninhas e no desenvolvimento inicial da pereira cv. Hosui. O experimento foi conduzido durante dois ciclos consecutivos
Rev. Bras. Frutic.. Publicado em: 25/04/2019
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14. Morphological and Metabolic Changes in Soybean Plants Cultivated in Irrigated Rice Rotation and as Affected by Imazapyr and Imazapic Herbicides Carryover
RESUMO: O surgimento de cultivares de soja tolerante a herbicidas do grupo das imidazolinonas possibilita a rotação de culturas com arroz irrigado, cultivado em sistema Clearfield®. O objetivo deste trabalho foi avaliar as alterações morfológicas e metabólicas de cultivares de soja contendo as tecnologias Cultivance® (CV), que é tolerante às imidaz
Planta daninha. Publicado em: 08/04/2019
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15. Reaction of lima bean genotypes to Macrophomina phaseolina
RESUMO A podridão cinzenta do caule, causada por Macrophomina phaseolina, é uma importante doença do feijão-fava (Phaseolus lunatus L.) no Nordeste brasileiro. Considerando que no Brasil não existem relatos de resistência a esta doença, 37 acessos de feijão-fava foram avaliados pela reação de resistência e estabilidade da resistência contra isola
Summa phytopathol.. Publicado em: 2019-03
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16. Multi-criteria Selection of Distributed Mini Generation Systems Using Rice Husk
ABSTRACT This paper presents a multi-criteria methodology to support decision making for management and selection of distributed mini generation sources (GD) using rice husk. Considering the potential of residual biomass, the developed model is based on the Analytic Hierarchy Process (AHP) method to evaluate the main technological arrangements of generation
Braz. arch. biol. technol.. Publicado em: 22/10/2018
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17. Daycent Simulation of Methane Emissions, Grain Yield, and Soil Organic Carbon in a Subtropical Paddy Rice System
ABSTRACT The DayCent ecosystem model, widely tested in upland agroecosystems, was recently updated to simulate waterlogged soils. We evaluated the new version in a paddy rice experiment in Southern Brazil. DayCent was used to simulate rice yield, soil organic carbon (SOC), and soil CH4 fluxes. Model calibration was conducted with a multiple-year dataset from
Rev. Bras. Ciênc. Solo. Publicado em: 02/07/2018
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18. Soil CH4 and N2O Emissions from Rice Paddy Fields in Southern Brazil as Affected by Crop Management Levels: a Three-Year Field Study
ABSTRACT Rice yield increases in response to improvements in crop management, but the impact on greenhouse gas (GHG) emissions in the subtropical region of Southern Brazil remains unknown. A three-year field study was developed aiming to evaluate the impact that an increase in crop management levels (high and very high) has on soil methane (CH4) and nitrous
Rev. Bras. Ciênc. Solo. Publicado em: 03/05/2018
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19. Effects of Long-Term Fertilization Management Practices on Soil Microbial Carbon and Microbial Biomass in Paddy Soil at Various Stages of Rice Growth
ABSTRACT Soil microbial biomass plays a significant role in soils, and it is often used as an early indicator of change in soil quality. Soil microbial biomass is affected by different fertilization management practices. Therefore, the impact of different long-term fertilization management practices on the soil organic carbon (SOC) content, soil microbial bi
Rev. Bras. Ciênc. Solo. Publicado em: 03/05/2018
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20. 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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21. Returning Winter Cover Crop Residue Influences Soil Aggregation and Humic Substances under Double-cropped Rice Fields
ABSTRACT Residue management in cropping systems may improve soil quality. However, there are few studies on the effects of residue management on soil aggregation and carbon content in the humin (C-HUM), humic acid (C-HAF) and fulvic acid (C-FAF) fractions in South China. Therefore, the effects on soil aggregation and on the C-HUM, C-HAF, C-FAF from incorpora
Rev. Bras. Ciênc. Solo. Publicado em: 09/11/2017
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22. Biochar from different residues on soil properties and common bean production
ABSTRACT: The production of biochar from organic residues promises to be an interesting strategy for the management of organic waste. To assess the effect of biochar on soil properties and the production and nutrition of common bean (Phaseolus vulgaris L.), three simultaneous experiments were conducted in a greenhouse with different biochar from organic resi
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-10
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23. Physical Properties and Crop Management for Corn in an Albaqualf
ABSTRACT Rice monoculture in lowlands can cause problems for management practices in crop fields, for example, in weed control. For this reason, corn in rotation with irrigated rice in lowlands may be advantageous, despite problems with soil compaction and water excess. The objective of this study was to evaluate soil physical properties and corn performance
Rev. Bras. Ciênc. Solo. Publicado em: 27/03/2017
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24. Effectiveness of Current Fertilizer Recommendations for Irrigated Rice in Integrated Crop-Livestock Systems
ABSTRACT: Irrigated rice in the state of Rio Grande do Sul (Brazil) has shown significant growth in yield in recent years due to improved management practices, especially in regard to fertilizer use. However, the response curves that led to the current fertilizer recommendations do not consider integrated systems prevailing in rice-producing regions that hav
Rev. Bras. Ciênc. Solo. Publicado em: 19/12/2016