Irrigated Grass
Mostrando 1-12 de 31 artigos, teses e dissertações.
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1. 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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2. Introducing rice yield loss caused by weed competition into the SimulArroz model
Resumo: O objetivo deste trabalho foi modelar a competição de arroz-daninho (Oryza sativa) e capim-arroz (Echinochloa spp.) com o arroz irrigado por inundação e introduzi-la como um submodelo no modelo SimulArroz. A competição das duas ervas daninhas com o arroz irrigado foi modelada com o uso da equação da hipérbole retangular. Os coeficientes “i
Pesq. agropec. bras.. Publicado em: 02/12/2019
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3. Goosegrass: Morphophysiological Characterization Under Water Excess Conditions
RESUMO: A espécie Eleusine indica (L.) Gaertn. (capim-pé-de-galinha) é uma gramínea que possui destaque global como infestante em áreas típicas de cultivos agrícolas da soja. Entretanto, nos últimos anos sua dispersão vem sendo relatada expressivamente para áreas de solo mal drenado, em que é cultivado arroz irrigado (terras baixas). Nesse diferen
Planta daninha. Publicado em: 04/11/2019
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4. Tillering dynamics of digit grass subjected to different defoliation frequencies
Resumo: O objetivo deste trabalho foi avaliar a dinâmica do perfilhamento do capim faixa-branca 'Suvernola' (Digitaria eriantha) quando submetido a diferentes frequências de desfolhação. Quatro frequências de desfolhação (intervalo entre cortes) foram avaliadas - muito alta, quando a gramínea atingiu 25 cm de altura; alta, 35 cm; média, 45 cm; e bai
Pesq. agropec. bras.. Publicado em: 06/05/2019
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5. VEGETATIVE DEVELOPMENT AND GROWING DEGREE-DAYS OF TROPICAL AND WINTER FORAGES
ABSTRACT One of the limitations to producing irrigated forages is setting suitable biometric parameters to establish the entrance of animals to grazing areas. Such parameters can be measured or even estimated. Estimates are advantageous for being practical and able to be used for grazing optimization. This study aimed to evaluate the correlation among growin
Eng. Agríc.. Publicado em: 25/04/2019
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6. Key factors that influence for seasonal production of Guinea grass
ABSTRACT: Climate, soil and management are the main drives for growth and production of tropical pastures. Thus, a better understanding of the effects of these factors and their interactions under climate conditions is required to obtain effective management options. Here, we used data from two field trials to research on climate and management interactions
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-05
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7. Autumn Maize Intercropped with Tropical Forages: Crop Residues, Nutrient Cycling, Subsequent Soybean and Soil Quality
ABSTRACT Autumn maize intercropped with tropical forages can raise the amount of crop residues and improve nutrient cycling, favoring subsequent soybean crop. The objective of this study was to evaluate the effect of forms of implementation of intercropping of irrigated autumn maize with tropical forages on yield, decomposition, nutrient accumulation and rel
Rev. Bras. Ciênc. Solo. Publicado em: 31/05/2016
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8. Effects of post-grazing forage mass on a beef cattle grazing system on Tanzânia grass pastures
The objective of this study was to evaluate the effect of grazing intensity on herbage accumulation, animal performance, and total system yield on irrigated Tanzania grass pastures under rotational stocking. The experiment was conducted from October 1999 to January 2001, in a complete randomized block design with four replications. Treatments consisted of th
R. Bras. Zootec.. Publicado em: 2014-06
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9. Production and nutrition of irrigated Tanzania guinea grass in response to nitrogen fertilization
The objective of this study was to evaluate the effects of nitrogen (N) fertilization in the four seasons of the year on forage production, nitrate (NO3) in the sap, total N in the forage and relative chlorophyll index (SPAD reading) in the leaves of irrigated Panicum maximum cv. Tanzania grass, establishing their critical ranges. In addition, we evaluated t
R. Bras. Zootec.. Publicado em: 2014-05
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10. Época de aplicación y toxicidad varietal del herbicida amicarbazone en la caña de azúcar, en Veracruz, México
During the 2005 Spring-Summer growing cycle, three experiments were established in Ursulo Galvan, Ver., Mexico, to determine the best time of application of the herbicide amicarbazone in irrigated sugarcane, and the susceptibility of the three main varieties grown in this state to this herbicide. In one experiment, weed control of amicarbazone at 0.7, 1.05 a
Planta daninha. Publicado em: 2013-09
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11. Toxoplasmosis seroprevalence in urban rodents: a survey in Niamey, Niger
A serological survey of Toxoplasma gondii was conducted on 766 domestic and peridomestic rodents from 46 trapping sites throughout the city of Niamey, Niger. A low seroprevalence was found over the whole town with only 1.96% of the rodents found seropositive. However, differences between species were important, ranging from less than 2% in truly commensal Ma
Mem. Inst. Oswaldo Cruz. Publicado em: 2013-06
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12. Volatilização de amônia e produtividade do feijoeiro irrigado adubado com diferentes fontes de nitrogênio / Ammonia volatilization and yield of irrigated common beans fertilized with different sources of nitrogen
Na cultura do feijoeiro o nitrogênio (N) é o nutriente exigido em maior quantidade, estando relacionado com aumentos de produtividade. Como fonte deste nutriente a uréia é o adubo mais utilizado no mundo devido ao seu baixo custo por unidade de N, entretanto, seu uso pode resultar em altas perdas por volatilização de amônia (NH3). O presente trabalho
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/12/2011