Semiarid Region
Mostrando 13-24 de 427 artigos, teses e dissertações.
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13. AGRONOMIC PERFORMANCE OF IRRIGATED CROP ROTATIONS UNDER CONVENTIONAL AND NO-TILLAGE SYSTEMS IN THE SEMIARID REGION OF MINAS GERAIS, BRAZIL
RESUMO Objetivou-se com esse trabalho avaliar o desempenho agronômico e a eficiência do uso da água de sistemas de sucessão de culturas em preparo convencional (PC) e plantio direto (PD), em dois experimentos instalados na região norte de Minas Gerais. O experimento 1 foi constituído pelo plantio em sucessão de milho- grão / feijão-comum, e o experi
Revista Caatinga. Publicado em: 2022
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14. Thermal performance of aviary located in the semiarid region of Pernambuco based on computer simulation
RESUMO Para estudos de desempenho térmico, a modelagem computacional tem sido apresentada como uma importante ferramenta na tomada de decisões para solucionar problemas complexos e cotidianos na produção e pesquisa em avicultura. Desta forma, o presente estudo teve como objetivo validar modelos computacionais desenvolvidos por meio do programa EnergyPlus
Revista Brasileira de Engenharia Agrícola e Ambiental. Publicado em: 2022
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15. Agro-economic viability of lettuce-beet intercropping under green manuring in the semi-arid region
RESUMO Produtores que praticam sistemas consorciados de hortaliças folhosas com tuberosas geralmente buscam sistemas que proporcionem alta produtividade, maior diversificação da produção, produtos de alta qualidade e principalmente retorno agroeconômico. Esse trabalho teve como objetivo avaliar se há viabilidade agroeconômica do bicultivo de alface e
Horticultura Brasileira. Publicado em: 2022
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16. Feeding habits of Dermatonotus muelleri (Anura, Microhylidae) from a semiarid region in Pernambuco state, Northeastern Brazil
Resumo Espécies de Trichogramma Westwood, 1833 (Hymenoptera: Trichogrammatidae) são freqüentemente usadas como agentes de controle biológico contra Lepidoptera, esses endoparasitóides de ovos apresentam taxonomia complexa, o que dificulta sua aplicação prática. Este estudo teve como objetivo comparar seqüências de regiões espaçadoras internas tra
Braz. J. Biol.. Publicado em: 2021-12
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17. Breaking the misconception of a dry and lifeless semiarid region: the diversity and distribution of aquatic flora in wetlands of the Brazilian Northeast
ABSTRACT The semiarid region of northeastern Brazil possesses a set of wetlands characterized by hydrographic basins with deficient drainage networks, a few large and permanent lotic systems and several permanent and temporary lagoons. Aquatic plants are widely distributed in these wetlands and the present study aims to determine if those of Ceará state hav
Acta Bot. Bras.. Publicado em: 2021-03
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18. Productivity and photosynthetic pigments in bell pepper plants grown in soil with biofertilizer and protected against water loss
ABSTRACT The search for techniques that maximize the use of water is becoming necessary for the sustainability of agriculture in semi-arid areas. In this sense, the present work aimed to evaluate the effects of soil protection against water loss and the use of bovine biofertilizer on fruit production and chlorophyll content in bell pepper plants. The experim
Rev. Ceres. Publicado em: 2021-02
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19. Straw management effects on sugarcane growth, nutrient cycling and water use in the Brazilian semiarid region
ABSTRACT It was evaluated how straw management modifies the development, growth, nutrient cycling and crop water productivity of sugarcane in the semiarid region of Brazil. The experiment was carried out using two plots with 5 ha each, being one without straw on the soil surface and one with 26 Mg·ha-1 covering the soil. Sugarcane growth and development and
Bragantia. Publicado em: 2020-12
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20. Potential and restrictions of Poincianella pyramidalis (Tul.) L. P. Queiroz as native forage in the Brazilian semi-arid region
ABSTRACT. Poincianella pyramidalis (catingueira) is a endemic plant of the Caatinga, selected by animals grazing on native pasture. With the aim of evaluating characteristics indicative of its nutritional quality, 10 plants were selected and identified, sampled at five different ages, were used to determine dry matter (DM), crude protein (CP), neutral deterg
Acta Sci., Anim. Sci.. Publicado em: 24/10/2020
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21. Effect of planting date on postharvest quality of roots of different carrot cultivars grown in the Brazilian semiarid region
ABSTRACT In regions with high temperatures, carrot cultivation is difficult because high temperatures tend to reduce the size and pigmentation of the root and, consequently, the yield and quality of the product. However, with the advent of summer cultivars, the cultivation of quality carrots under high temperatures has been viable. The aim of this work was t
Rev. Ceres. Publicado em: 2020-10
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22. CLIMATE ZONING FOR THE CULTIVATION OF AFRICAN MAHOGANY SPECIES IN BRAZIL
ABSTRACT African mahogany is the common name given to different species of the genus Khaya. They are tree species native to the African continent, which have a wood quality that allows their noble use in making fine furniture, and in the civil and naval industries. Currently, African mahogany cultivation has received notoriety in Brazil and given its climati
CERNE. Publicado em: 2020-09
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23. Agronomic performance of seedless table grape genotypes under tropical semiarid conditions
ABSTRACT The São Francisco Valley is the main producing region of table grape in Brazil. The objective of this work was to evaluate the agronomic performance and physicochemical characteristics of 14 seedless table grape genotypes to select those with potential to be used in commercial crops in the São Francisco Valley, Brazil, or as parents in breeding pr
Bragantia. Publicado em: 2020-09
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24. Constrictotermes cyphergaster (Blattaria, Termitidae) termite nests as substrates for lichen fixation in the semiarid region of northeastern Brazil
RESUMO Sementes de sabiá (Mimosa caesalpiniifolia Benth.) apresentam dormência tegumentar, dificultando a absorção de água e oxigênio, consequentemente retardando a germinação. Dessa forma, objetivou-se avaliar métodos para superação de dormência associados ao condicionamento fisiológico sobre germinação e vigor de sementes de sabiá, consider
Braz. J. Biol.. Publicado em: 2020-09