Nitrogen Management
Mostrando 1-12 de 241 artigos, teses e dissertações.
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1. Inoculation with Azospirillum combined with nitrogen fertilization in sorghum intercropped with Urochloa in off-season
ABSTRACT The objective of this work was to evaluate the management of nitrogen fertilization in grains of sorghum inoculated or not with Azospirillum brasilense in single crop or intercropped with Urochloa brizantha (cv. Paiaguás) in the off-season. The experimental design was a completely randomized block design with four replications, in a 2 x 2 x 3 facto
Revista Ceres. Publicado em: 2022
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2. Carbon and Nitrogen Stocks Under Different Land-Use in the Paraopeba River Basin-MG Before the Corrégo do Feijão Dam Burst
ABSTRACT Soil attributes can provide indicators for the management and conservation of natural and agrarian ecosystems. This study was carried out before the rupture of the Córrego do Feijão dam and aimed to evaluate and quantify the stocks of carbon, nitrogen and the C/N ratio in soils around the Paraopeba-MG river basin in five regions corresponding to t
Revista Ceres. Publicado em: 2022
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3. Influence of irrigation frequency and nitrogen concentration on Tifway 419 bermudagrass in Brazil
ABSTRACT Tifway 419 Bermudagrass is widely used on athletic fields, requiring irrigation and fertilization for its maintenance; however, little information is available for Bermudagrass management in tropical countries, as Brazil. Thus, this study aimed to evaluate the effect of irrigation frequency and nitrogen (N) fertilization on the development of Tifway
Revista Ceres. Publicado em: 2022
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4. Do biomarkers have predictive value in the treatment modality of the patients diagnosed with bowel obstruction?
SUMMARY OBJECTIVES: This study aimed to investigate the ability of the biomarkers to predict the surgery treatment and mortality in patients above 18 years of age who were hospitalized with the diagnosis of bowel obstruction from the emergency department. METHODS: This is a 2-year retrospective study. The patients’ demographic data, laboratory paramete
Revista da Associação Médica Brasileira. Publicado em: 2022
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5. Reproductive phenology of aquatic macrophytes in the Cerrado-Pantanal ecotone
ABSTRACT Studies of plant phenology have been performed predominantly with terrestrial species and rarely so with aquatic communities. Such plants are fundamental for the aquatic ecosystems, representing a valuable source of resources when they are scarce in terrestrial environments for the fauna. Studies of phenology help to understand the reproduction rhyt
Acta Bot. Bras.. Publicado em: 2021-03
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6. Greenhouse gas emission, water quality and straw decomposition as a function of rice postharvest field management
ABSTRACT The objective of this paper was to evaluate the quality of water drained after the use of the knife-roller (an implement used to incorporate rice residues after harvest), the partial global warming potential (pGWP) and straw decomposition as a result of postharvest field management of irrigated rice. The experiments were conducted during the 2018 an
Bragantia. Publicado em: 2020-09
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7. “Valve-In-Valve” Mitral por Via Transeptal: Um Papel de Destaque no Tratamento da Disfunção de Biopróteses no Brasil?
ABSTRACT The objective of this paper was to evaluate the quality of water drained after the use of the knife-roller (an implement used to incorporate rice residues after harvest), the partial global warming potential (pGWP) and straw decomposition as a result of postharvest field management of irrigated rice. The experiments were conducted during the 2018 an
Arq. Bras. Cardiol.. Publicado em: 2020-09
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8. Agronomic performance of white oats cultivated under fertigation with treated sewage effluent and definition of critical limits of Normalized Difference Vegetation Index
ABSTRACT One of the benefits of irrigation with wastewater in agriculture is the reduction in the use of mineral fertilizers and the increase in crop yield. For wastewater application, the use of remote sensing can help to define specific management areas. The aim of this study was to evaluate the yield and the growth of irrigated white oats (Avena sativa L.
Bragantia. Publicado em: 13/12/2019
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9. Nitrogen sufficiency index for estimating nitrogen fertilizer requirement of irrigated rice
ABSTRACT The proper nitrogen management is required to achieve high irrigated rice yield. This study aimed to determine the rice response to nitrogen topdressing doses and calibrate the chlorophyll meter reading. Three experiments were conducted in a randomized block design. In the first experiment, five N rates (0, 30, 60, 90, and 120 kg ha-1) were evaluat
Rev. Ceres. Publicado em: 02/12/2019
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10. Production and Nutrient Accumulation of Common Bean Cultivars under Competition with Weed
RESUMO: O manejo inadequado das plantas daninhas é uma das causas da baixa produtividade do feijoeiro, pois ele é muito suscetível à interferência delas, devido ao seu crescimento inicial lento. Objetivou-se com este trabalho avaliar a influência da trapoeraba na produção de grãos e acúmulo de nutrientes de cultivares de feijoeiro. O experimento fo
Planta daninha. Publicado em: 02/12/2019
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11. Summer Cover Crops Shoot Decomposition and Nitrogen Release in a No-Tilled Sandy Soil
ABSTRACT Cover crops have numerous benefits when used in a no-till system. Understanding the processes of decomposition and N release of summer cover crops (SCC) may help select species and management to be used in cropping systems. This study aimed to evaluate C and N loss of SCC shoots. Six SCCs were evaluated: velvet bean (Mucuna aterrima), pearl millet (
Rev. Bras. Ciênc. Solo. Publicado em: 07/11/2019
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12. Chemical characterization of wheat kernels naturally contaminated by deoxynivalenol-DON when cultivated under nitrogen management strategies
RESUMO Composição química e contaminação de grãos de trigo (Triticum aestivum L.) afeta diretamente a qualidade da farinha obtida, determinando sua aceitabilidade e uso pela indústria. Ensaios foram conduzidos a campo para avaliar o impacto de práticas agrícolas na qualidade de grãos de trigo (composição química e contaminação). O cultivo foi
Rev. Ciênc. Agron.. Publicado em: 04/11/2019