Height Spring
Mostrando 13-24 de 43 artigos, teses e dissertações.
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13. Biomass accumulation in mombasa guineagrass plants under different levels of nitrogen supply and plant densities
The objective of this study was to evaluate the effect of different levels of nitrogen supply and plants densities in the productivity of mombasa guineagrass (Panicum maximum) in the period of establishment. The design was of completely randomized blocks, with 12 treatments and three repetitions, with four nitrogen supplies (absence of application, 80, 160 a
Revista Brasileira de Zootecnia. Publicado em: 2012-05
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14. Morphogenesis in guinea grass pastures under rotational grazing strategies
This study was conducted in order to evaluate the morphogenetic and structural characteristics of guinea grass cv. Mombasa under three post-grazing heights (intense - 30 cm, lenient - 50 cm and variable - 50 in spring-summer and 30 cm in autumn-winter) when sward light interception reached 95% during regrowth. Post-grazing heights were allocated to experimen
Revista Brasileira de Zootecnia. Publicado em: 2012-04
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15. Tillering dynamics in pastures of guinea grass subjected to grazing severities under intermittent stocking
This experiment was carried out to analyze the tillering dynamics of the species Panicum maximum cv. Mombaca subjected to three post-grazing heights: residue of 30 cm (30); residue of 50 cm (50); and residue of 50 cm during spring and summer, lowered to 40 cm in the first fall season grazing and to 30 cm in the following grazing cycle, resuming to 50 cm afte
Revista Brasileira de Zootecnia. Publicado em: 2012-03
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16. An extension of coupled beam method and its application to study ship's hull-superstructure interaction problems
This paper describes an extended formulation for the coupled beam method (CBM). The method is originally developed for elastic bending response analysis of passenger ships with large multi-deck superstructures. The extension is mainly performed to enable the available method in order to study elastic bending behaviour of ships fitted with superstructures of
Latin American Journal of Solids and Structures. Publicado em: 2011-09
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17. Fertilization and oversowing on natural grassland: effects on pasture characteristics and yearling steers performance
The objective of this study was to evaluate the vegetal and animal production of a natural pasture on a Mollisol soil in the region of Campanha, in RS. The experimental design consisted of complete randomized blocks with three replicates, which enables the comparison between natural unfertilized pastures with fertilized pastures and pastures fertilized and o
Revista Brasileira de Zootecnia. Publicado em: 2011-09
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18. SobrevivÃncia e crescimento inicial de pinhÃo-manso em funÃÃo da Ãpoca de plantio e do uso de hidrogel / Survival and initial growth of physic nut in function of the planting time and of the hydrogel use
The practice of the watering in forest seedlings during the planting and after the first weeks it is of having recognized importance in commercial plantings, mainly in times whose climatic conditions are not favorable to the establishment and the development. Alternatively, the job of polymeric hydroretainer (hydrogeis) in the sylvicultural treatments of for
Publicado em: 2010
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19. Modelling evapotranspiration for reference crop and acid lime orchard based on regression and artificial neural network tecniques / Modelagem da evapotranspiração de referência e da evapotranspiração de limeira ácida com aplicação de técnicas de regressão e redes neurais artificiais
The main objective of this study was to test artificial neural networks (ANNs) of multilayer perceptron type (MLP) for estimating reference evapotranspiration, diffusive leaf conductance and crop evapotranspiration of a mature and irrigated citrus orchard. The ANNs were trained under conjugate gradient algorithm. The sigmoid and linear activation functions w
Publicado em: 2010
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20. Production and morphogenetic characteristics of Brachiaria brizantha cv. Xaraes under fertigated and conventional fertilization conditions in Brazil / Produção e características morfogênicas da Brachiaria brizantha cv. Xaraés com adubação convencional e fertirrigação na região Leste de Minas Gerais
The Eastern of Minas Gerais State is a traditional region in cattle, which exerts strong influence on the regional economy, with the need to develop grazing systems associated with the practice of irrigation. Experiments had been conducted in order to evaluate the forage grasses traditionally used in the region under irrigation. The results showed that the B
Publicado em: 2009
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21. Structural and metabolic reorganization of the gut during the fasting and seasonal dormancy in tegu lizards Tupinambis merianae / Reorganização estrutural e metabólica do intestino associada ao jejum e dormência sazonal em lagartos teiú Tupinambis merianae
The gut phenotypic plasticity is widely documented in the vertebrates and would allow to either short term or anticipatory adjustments in the organ functional capacity, to cope with unpredictable and periodic changes of food availability in the environment. This study investigates seasonal changes of morphology and in the capacity for substrate oxidation in
Publicado em: 2009
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22. Extrato pirolenhoso no cultivo de orquídeas
The use of pyroligneous extract in the cultivation of plants is improvement of development. The effect of the use of different shot of pyroligneous extract in vegetative of two orchids of the gender Cattleya was studied in greenhouse. Used plants Cattleya intermedia Lindl and Cattleya loddigesii Lindl, grown in pots containing substrate composite coconut fib
Publicado em: 2009
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23. Demografia do perfilhamento e produção de forragem em pastos de capim-marandu submetidos a regimes de lotação intermitente por bovinos de corte / Tiller demography, tillering dynamics and growth of marandu palisadegrass swards subjected to strategies of rotational stocking
Tillering plays a central role in the recovery of sward leaf area and growth patterns of forage plants, influencing pasture longevity and productivity. However, little is known about the tillering process in tropical grasses, particularly Brachiaria brizantha cv. Marandu (marandu palisadegrass), one of the most used species on cultivated grassland areas in B
Publicado em: 2008
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24. Compostos nitrogenados e de carboidratos em pastos de capim-elefante (Pennisetum purpureum) cv. Cameroon manejados com intervalos de desfolhação fixo e variáveis / Nitrogen and carbohydrate fractions in elephant grass pastures (Pennisetum purpureum cv. Cameroon), managed with fixed and variable defoliation intervals
The present study designed to characerize the protein and carbohydrate fractions of elephant grass pasture (Pennisetum purpureum) cv. Cameroon, intensively grazed at high stocking rate during the rainy season. The experiment was carried in the Animal Sciences Department of the University of São Paulo (USP/ESALQ). Forage samples were collected during autumn
Publicado em: 2008