Bacharelado em Agronomia (UAST)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/2927
Siglas das Coleções:
APP - Artigo Publicado em Periódico
TAE - Trabalho Apresentado em Evento
TCC - Trabalho de Conclusão de Curso
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Resultados da Pesquisa
Item Desempenho agronômico de clones de palma forrageira Submetidos a diferentes níveis de potássio(2019-02-14) Silva, Fábio Heráclito da; Leite, Maurício Luiz de Mello Vieira; http://lattes.cnpq.br/4204641633941814; http://lattes.cnpq.br/1652940323753761Cactus forage can be used as a food alternative for ruminants in the Semi - arid region of Brazil, however, there are few researches related to potassic fertilization in the semi - arid environment and the morphological and productive responses of the cactus forage submitted to potassium fertilization. The objective was to evaluate the agronomic performance of forage palm clones submitted to different levels of potassium fertilization in a semi-arid environment. The experiment was conducted at the Universidade Federal Rural de Pernambuco / UniversidadeEstadual de Serra Talhada- UAST, in Serra Talhada-PE, during the period from December 2017 to December 2018. The experimental design was a randomized complete block design in a 5x2 factorial system ( five potassium levels and two palm clones) with three replicates. Two genotypes of forage palm, the Orelha de Elefante Mexicana (Opuntia stricta (Haw.) Haw.) And Docemiúda (Nopalea cochenillifera Salm. Dyck), were submitted to different doses of potassium (0, 250, 500, 750, 1000 kg of K2O ha-1). Morphometric evaluations (plant height, cladode number, length, width and thickness of cladodium) and of green and dry matter production were performed at six months and at 12 months of cultivation. The variables, plant height at six and 12 months of age, did not showItem Desempenho agronômico de pornunça submetida a duas alturas de corte e consorciada com clones de palma forrageira(2019) Moura, Geovane Alves de; Leite, Maurício Luiz de Mello Vieira; http://lattes.cnpq.br/4204641633941814; http://lattes.cnpq.br/7520067862400742Item Desempenho agronômico de clones de palma forrageira em consórcio com pornunça(2019) Moura, Edvaldo Alves de; Leite, Maurício Luiz de Mello Vieira; http://lattes.cnpq.br/4204641633941814; http://lattes.cnpq.br/2567485677684755Item Evapotranspiração e coeficiente de cultura da palma forrageira: análise comparativa de cultivos sem e com o uso de cobertura morta(2018) Alves, Hygor Kristoph Muniz Nunes; Silva, Thieres George Freire da; Jardim, Alexandre Maniçoba da Rosa Ferraz; http://lattes.cnpq.br/9981205244282499; http://lattes.cnpq.br/0213450385240546; http://lattes.cnpq.br/4208743875293068Due to long periods of drought and the effects of climatic changes in the Brazilian semi-arid region, it is of great importance to use management that will circumvent these impacts in the rural environment. The use of plants tolerant to water deficit and the use of supplementary irrigation may be an alternative, where for good irrigation water management practice it is necessary to know the water requirement of the crop, evapotranspiration and the crop coefficient for conditions. Soil water balance is a technique that helps in the measurement of these components. Thus, the objective of this study is to quantify the evapotranspiration and the forage cactus cultivation coefficient in crops without and with the use of mulch in the semi-arid region of Pernambuco. The experiment was carried out at the Experimental Station Lauro Ramos Bezerra, belonging to the Agronomic Institute of Pernambuco - IPA, municipality of Serra Talhada-PE, from November 2014 to November 2015. The clone used was Opuntiastricta, submitted to four slides of irrigation (25, 50, 75 and 100%) based on reference evapotranspiration plus rainfed condition, and two cropping systems (without and with mulch). The experimental design was arranged in randomized blocks, in the factorial arrangement 5x2, in four replications, where the slices represented the plots, and the cropping systems, the subplots. Over time the soil moisture was monitored. The water balance method was applied in 14-day intervals, totalizing 21 periods, which was composed of evapotranspiration (ET), precipitation (P), irrigation (I), runoff (R), vertical flow of water in the soil (Q) and variation of soil water storage (Δh). The components of the water balance were integrated and compared between the treatments within each period, applying them to the tests of normality and homoscedasticity, and once significant, the analysis of variance, if necessary, the Tukey test (5%). The irrigation events added to precipitation during the 21 periods was 764.76 mm, with the months between August and November 2015 presenting the highest values of ETo (6.18 mm). There was no difference in the components of the vertical flow of water in the soil, capillary ascension and deep drainage (CA and DP, in this order) when compared to the systems of cultivation without and with mulch over the soil. When the crop evapotranspiration (ETc) was evaluated, a significant difference was observed only for periods 10, 18, 20 and 21. The ETc accumulated for both systems was -782.01 and -771.19 (SC and CC, in this order). The highest mean ETc value corresponded to periods 6 (10-Apr-2015) for the two SC and CC systems, with averages of (-5.06 and -4.75, respectively). For the crop coefficient (kc) only the periods 10,18, 20 and 21 were significant (p <0.05), the mean values of kc for the two systems were 0.57 and 0.56 (SC and CC, in this order). The use of mulching improved the conditions of forage cactus cultivation, although it did not present a difference in water consumption, providing close kc values.Item Adubação potássica em clones de palma forrageira(2019) Cirino Júnior, Baltazar; Leite, Maurício Luiz de Mello Vieira; Oliveira, Alexandre Campelo de; http://lattes.cnpq.br/8164135937542569; http://lattes.cnpq.br/4204641633941814; http://lattes.cnpq.br/4245406622322251The objective of this study was to evaluate the agronomic performance of Nopalea cochenillifera clones under different levels of potassium. Cladodes of forage palm were selected and collected (in the middle third of the plant), which was three years old, in the UAST experimental area. These cladodes went through a healing period of 10 days. They were then placed in pots (larger diameter) = 24 cm (smaller diameter) = 17 and 23 cm deep), with a capacity of 7 kg of soil, presenting deep drains, covering the bottom of the vessel with gravel to facilitate drainage. The experiment was arranged in a randomized block design in a 5x2 factorial scheme, using five levels of potassium (0, 250, 500, 750 and 1000 Kg.ha-1) and two forage palm clones (Giant Sweet and Sweet Child), with four replicates. Five biometric campaigns were carried out in August, September, October, November and December / 2018 to measure the plant height, length, width and thickness of cladodium, as well as the number of cladodes in order and totals . For the comparison test of means, only the data of the last campaign were used. The clones presented a similar response to potassium fertilization, presenting non significant results for fertilization levels. When comparing the two clones, there was no significant difference for all studied variables: plant height, number of cladodes, length, width and thickness of cladodes. Potassium fertilization does not influencethe morphological, productive and potassium parameters of plant tissues during the initial growth of the genus Nopalea. The software used was R-project version 3.5.0 and SigmaPlot 10.0.