04.1 - Graduação (UAG)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/2948
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Item Estresse salino e biofertilizante no crescimento inicial do tomateiro(2018-08-24) Silva, Tamires Fernanda da; Alves, Samara Sibelle Vieira; http://lattes.cnpq.br/7447103801683932The tomato (Lycopersicon esculentum Mill.) Is one of the most known and consumed vegetables in the world. It can be used in both raw and processed food in the form of sauces, ketchup, extract, dehydrated tomatoes, etc. In some regions of the Northeast, as the semiarid climate prevails, the water in most of these regions is saline, but the only one available for use in agriculture. Studies on the use of biofertilizers as attenuators of the effect of salinity on plants are promising, since tomato is considered moderately tolerant to salinity. In view of the above, this work aimed to evaluate the tolerance of tomato to different levels of salinity in the irrigation water associated to the use of bovine biofertilizer. For this experiment the cherry tomato cv. Fern of TopSeed Garden. The experimental design was completely randomized with four treatments, in the presence and absence of biofertilizer and four replications. The research was carried out in greenhouse at the Garanhuns Academic Unit - UFRPE. The plants were watered with water of different levels of salinity 0.5; 2.48; 4.88; 8.7 dS m-1, obtained by mixing saline water and urban water supply and the same salinity levels with the addition of 5% biofertilizer. The plants were watered maintaining the field capacity. The characteristics evaluated biweekly were: stem diameter, leaf number, plant height, leaf area, LAI, AFE, RAF, and chlorophyll A and B contents. These characteristics will be evaluated every 15 days. Growth was reduced with increasing salinity of irrigation water. The cherry tomato cv. Samambaia was more tolerant to salinity than the literature suggests. The use of the biofertilizer presented small effects as an attenuator of the saline stress.Item Produção de milho (Zea mays L.) em função de adubos orgânicos e minerais(2019-02-11) Araújo, Maysa Bezerra de; Moura, Mácio Farias de; http://lattes.cnpq.br/1759384860173972; http://lattes.cnpq.br/7261580740453369Maize cultivation is carried out with massive use of mineral fertilizers that have provided high yields, among which nitrogen is highlighted with the mineral element most required by the crop, but most nitrogen fertilizers can be lost from agricultural systems by air , acidifies the soil, and is easily leached and can cause contamination of the water table. Aiming for greater preservation of the agricultural environment, alternative sources of nitrogen should be used. In this way, the objective of this work is to evaluate the effect of the use of green manure, organic compost and mineral fertilizer on maize production. The experiment was conducted at Fazenda Experimenta at the Federal Rural University of Pernambuco / Garanhuns Academic Unit (UFRPE / UAG). The evaluations were made in the field and later in the laboratory CENLAG (Laboratory Center for Research Support of the Academic Unit of Garanhuns / UAG). The design was randomized blocks, in a factorial scheme (3x4) +2], three legumes, four doses of organic compound, plus two additional controls one with mineral fertilization and the other without the use of organic or mineral fertilizers . The corn variety used was AG 1051 developed by AGROCERES. In July 2018, the sowing of crotalaria, macassar beans and dwarf pigeon peas was carried out on the plot. These were incorporated at the time of flowering. In the subplot, four doses of organic compound (0, 20, 40 and 60 t ha-1) were used. The application of the organic compound was carried out 10 days after the incorporation of the legumes and 30 days before the sowing of the corn. The variables analyzed were number of leaves, stem diameter, plant height and number of days for flowering, grain yield, dry mass (g per plant), mean number of ears per plant, grain yield, mean weight of the ears debris, diameter and length of spikes, number of spikes, mass of 100 grains. Crotalaria, guandu and macassar green manures can be used interchangeably for maize fertilization, the organic compound should be applied at a dose of 60 t ha -¹ and organic compound plus corollary, pigeon pea or macassar can be used to produce corn in substitution mineral fertilizer.