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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2 resultados
Resultados da Pesquisa
Item Comportamento da soja BRS 7780 IPRO (Glycine max L. MERRIL) no município de Serra Talhada - PE em diferentes densidades de semeadura(2019-07-17) Nascimento, Simone Andrea dos Santos; Almeida, Rosa Honorato de; http://lattes.cnpq.br/4319299572657528; http://lattes.cnpq.br/3647378652257643Soy, being a very important oilseed for the production of oils and bran, becomes an alternative for the composition of human and animal food, since it has gained great expressiveness in Brazil over the years. Due to the scarcity of studies on soybeans in some Northeastern states and the adequate production arrangements for the crop, it is of great importance to develop research on seeding density, a determining factor in the production environment influencing the growth and development of soybeans, with the objective of evaluating the behavior of the BRS 7780 IPRO soybean variety in different plant densities (333, 416 and 476 thousand plants ha1), in semi-arid conditions, in the municipality of Serra Talhada. The study was developed in the period from March to June 2019, at the Universidade Federal Rural de Pernambuco, Unidade Acadêmica de Serra Talhada. The experimental design used was that of randomized blocks, with three treatments representing planting densities of 333 thousand, 416 thousand and 476 thousand ha-1 plants, with eight repetitions. Plant height and first pod insertion, number of pods and grains per plant, number of branches, wet and dry weight of pods, mass of 1000 grains and estimated grain productivity were evaluated. It was concluded that the height of the plants and the insertion of the first pod are higher with the increase of the seeding density, however, it promoted a greater reduction in the number of branches per plant, number of pods and grains per plant. For the cultivar studied, sowing density extremes did not promote considerable variations in productivity and the weight of 1000 grains. The BRS 7780 IPRO soybean cultivar presented a first pod insertion height close to that adequate for mechanized harvestingItem Manejo de plantas daninhas na cultura da soja (Glycine max L.)(2020) Silva, Michelle Ferreira; Almeida, Rosa Honorato de; http://lattes.cnpq.br/4319299572657528; http://lattes.cnpq.br/8539218987631657Soy (Glycine max L.) is one of the most important agricultural crops in Brazil, occupying the second largest place in production in the world. The interference of weeds in the soybean crop can lead to losses that reach 80%, if its management is not adequate, however, the phenological phase of the crop and the period of living with the weed species intensify the interference, which may whether or not the plant shows indications of damage in its development. Based on this, the present work had as general objective to study the interference of weeds on the soybean culture. The experiment was conducted in the field for a period of 35 days, using soybean, var. Tracajá. The design used was randomized blocks, where the treatments consisted of five weed control periods since the emergence of soybean; Witness M (Without weeding); Witness C (with weeding 0-35 days); C7 (weeding 0-07 days); C14 (weeding 0-14 days); C21 (Weeding from 0 to 21 days). Plant height, stem diameter, number of leaves, fresh and dry mass of aerial part and root system and total chlorophyll contents, a and b of soybean were evaluated, in addition to the survey of the main weed species occurring in the cultivation area. The data were subjected to analysis of variance and the means compared by the Tukey test at 5% probability. Twenty vegetable species were registered in the soybean cultivation area, distributed in 14 botanical families, and the weeds considered of greatest importance were Euphorbia heterophylla L (dairy), Cyperus rotundus L. (tiririca), Merrenia aegyptia (L). Urb (jitirana), Amaranthus deflexus L. (caruru), Cenchus echinatus L. (carrapicho grass); and the control periods evaluated did not interfere with soybean development; and in the absence of weed control, there was negative interference on the variables: stem diameter, number of leaves, total chlorophyll, a and b, and dry and fresh biomass of the shoot and root.