03. Unidade Acadêmica de Serra Talhada (UAST)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/2925
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Item Uso de bioestimulante no capim-corrente submetido ao estresse hídrico(2020-08-17) Souza, José Victor da Silva; Leite, Maurício Luiz de Mello Vieira; http://lattes.cnpq.br/4204641633941814; http://lattes.cnpq.br/6836501799019536The use of biostimulants in plants promotes activities similar to phytohormones. Thus, the objective was to evaluate the influence of a biostimulant on the growth and accumulation of phytomass in plants of urocloa grass (Urochloa mosambicensis), submitted to water stress conditions. The test was conducted from September to December 2019, in the experimental area of the Study Group on Forage (GEFOR), of the Federal Rural University of Pernambuco, Academic Unit of Serra Talhada (UFRPE-UAST). The design used was in randomized blocks, in a 4x2 factorial scheme, with four levels of water replacement, based on the culture evapotranspiration (ETc): 25%.ETc, 50%.ETc, 75%.ETc and 100%.ETc and two levels of a commercial Acadian® biostimulant (0 and 8 ml per liter), with four replications, totaling 32 experimental units, represented by vessels. Urocloa grass growth was monitored every seven days during a growth cycle. The structural characteristics were evaluated: plant height and width, stem length and diameter, number of: total tillers, fully expanded leaves, expanding leaves and senescent leaves. The leaf area was estimated, nondestructively, based on the linear dimensions of the length and width of the leaf blade. At the end of the cycle, the fresh and dry mass of the morphological components and the total aerial part were determined. The evaluation data were subjected to the normality test, homoscedasticity and analysis of variance by Test F. Since F was significant, the treatment means were compared using the Tukey test at 5% probability. The results showed that for most of the morphometric variables there was no interaction between the levels of biostimulant and the ETc levels. In the absence of the biostimulant, the largest stem diameter was obtained, except for 100% .ETc. Urocloa grass has a moderate tolerance to water stress.Item Influência do uso de biofertilizante a base de esterco caprino (BioCapri) na dinâmica de crescimento e produção de palma forrageira no semiárido brasileiro(2021-02-23) Leite, Renan Matheus Cordeiro; Silva, Thieres George Freire da; http://lattes.cnpq.br/0213450385240546; http://lattes.cnpq.br/9490242836620362Several problems are threatening food security in the world, which is even more worrying in climatically vulnerable locations, requiring the adoption of agricultural resilience practices to mitigate the effects of climate change on the production chain in semiarid regions. The forage cactus becomes a good alternative for the production of forage due to its high adaptation to adverse climatic conditions, in addition to having a low production cost, organic fertilization can provide an increase in the agronomic performance of the crop. Maintaining the supply of food for herds in times of drought. This work investigated the application of sustainable and low-cost techniques to the cultivation of forage cactus in the Brazilian semiarid region, aiming at an efficient management of resources, an increase in productivity and a better understanding of the growth dynamics. Two forage cactus clones were evaluated, Miúda (Nopalea cochenillifera (L.) Salm-Dyck) and Orelha de Elefante Mexicana (Opuntia stricta (Haw.) Haw.), Conducted in pots and subjected to five doses of liquid biofertilizer at based on goat manure (BioCapri), with 0, 50, 100, 150 and 200 mL plant-1 month-1 , and a dose of goat manure (180 cm3 plant-1 ). Monthly biometric assessments were carried out during the experimental period to assess the growth and development of the forage cactus, obtaining plant height and width, number of cladodes and length, width, perimeter and thickness of the cladodes. The productivity of the forage palm was obtained by means of a single biomass (dry mass, DM) event, being carried out at the end of each cycle. In order to establish a phenology of forage cactus, the beginning of a new phase was considered when a production tax of a specified order of cladodes was exceeded by the rate of production of cladodes of the subsequent order. Evaluate the efficiency of the use of radiation and water. It was found that the manure and the doses of applied liquid biofertilizer (0, 50, 100, 150 and 200 mL) did not affect most of the biometric variables analyzed, however, the clone factor differed due to the intrinsic characteristics of the clones, where the OEM clone excelled in variables such as CC, LC, PC, AC and IAF. Although the MIU clone has a lower radiation interception, a better capacity for converting to biomass was observed due to the superior MS content of this clone. The contribution of biofertilizer, as well as the use of goat manure, did not cause results obtained in the forage yield, however the clone differed due to its intrinsic characteristics. The development of future research with forage cactus and its natural resource efficiencies are essential to document, and describe the relationship of this crop with the environmental conditions and soil fertility.Item 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 Produção de fitomassa e composição bromatológica de milho hidropônico cultivado sob diferentes substratos(2019) Barbosa, Anderson José Braz; Ribeiro, Valéria Louro; http://lattes.cnpq.br/2677739330576168; http://lattes.cnpq.br/1973502030287511The objective of this study was to evaluate the effect of the different substrates on the production of hydroponic maize green forage (Zea mays L.) cultivated in the semi-arid region of Pernambuco. The experiment was carried out in a randomized block design. The treatments consisted of sugarcane bagasse (SB) (100%), sugarcane bagasse + sugarcane straw (SBS) (50% + 50%), sugarcane straw (SS) (100%), Calotropis procera SW (CP) (100%) and sugarcane bagasse + Calotropis procera SW (SCP) (50% + 50%), in which corn seeds were sown, both with five replications. The blocks consisted of five flowerbeds measuring 0.5 m wide by 2.5 m length, subdivided into five sub-plots of 0.5 m x 0.5 m (0.25 m²) made with wooden slats arranged in parallel leaving 0.50 m streets between bed flowers for the maneuvers, totaling five treatments and five repetitions. The flowerbeds were lined with black polythene tarps of 15 microns. The density used was 2.5 kg of seeds / m². The corn seeds were previously hydrated by immersion in water for 24 hours before sowing for pregermination. An approximately 3 cm layer of the substrates was placed, followed by irrigation with water to moisten the substrate. The seeds were then manually distributed homogeneously, according to the treatments, and covered with another 2 cm layer of the respective substrates. For fertilization, a commercial solution for hydroponic corn was used. Harvesting was performed on the 15th day after sowing. The production per m² of green phytomass, aerial part green mass, green mass of the substrate with root, dry matter (DM) of the total forage, aerial part DM and root DM of the substrate were determined; analysis of percentage of DM, mineral material (MM) and neutral detergent fiber (NDF) of the complete forage, substrate with root and aerial part. The data were submitted to analysis of variance and Tukey test at 5% of probability. The treatment that CP was used as the only substrate did not present productive responses. There was no significant difference (P> 0.05) for the production of natural matter between the treatments. For the production of DM per m-2 of the complete forage, there was the influence of the substrate (P <0.05), where the treatment with SB presented higher production in relation to the SS, being found the values of 4.83 and 3.64 kg of DM per m2, respectively. The substrate influenced (P <0.05) the production of green mass of the aerial part, where the treatments SB and SCP obtained productive values of 676.25 and 106.25 g.m², respectively. For production DM of the aerial part the values found were 94.06; 69.08; 92.34 and 20.23 g.m-2 for SB, SBS, SS and SCP, respectively. For the green mass production of the most root substrate, there was no significant difference (P> 0.05) between the treatments. The sugarcane bagasse presented better productive response and better composition. The substrate influenced the content of DM and MM of the complete forage and aerial part.Item Desempenho agronômico de sorgo irrigado com água salina(2018) Souza, Leandro Emanoel Mira de; Souza, Eduardo Soares de; http://lattes.cnpq.br/8125009165007422; http://lattes.cnpq.br/5068797427634565The use of reuse water, despite the undesirable characteristics due to salinity of the water, is a practice increasingly used for the production of forage in the semiarid. Its indiscriminate use can compromise the production of fodder as well as cause great damage to the environment. It is necessary to develop techniques that provide a significant production of fodder, but also to minimize the salinization of the soils with the reuse of these waters. For this reason, the objective was to evaluate the performance of sorghum plants irrigated with saline tail, following the transpiration and the stomatal conductance at different stages of growth, as well as their production. The experiment was carried out at the Serra Talhada Academic Unit, in a 3x2 + 1 factorial scheme with 3 replications, where factor 1 was the time of beginning of irrigation with waste water (15, 30 and 45 days after emergence), Factor 2 was the concentrations of the reject (50 and 100% of the salt reject). The present work showed that for the sorghum growth, the beginning of irrigation at 45 days after emergence and the dilution of 50% of reject presented better results. For the dry matter accumulation all treatments were inferior to the control, while the natural matter of the aerial part with the beginning of the irrigation at 45 days independent of the reject and at the 30 days with 50% of the reject were similar to the control. For transpiration treatments with 100% saline reject with irrigation start at 30 and 45 days after emergence and treatment with 50% of the reject initiated at 45 days after emergence did not differ from control, and for conductance only treatment with 50% of the reject started at 45 days after emergence did not differ from the control. Therefore, it is advisable to start irrigation with reject water at 50% reject concentration and 50% potable water at 45 days after emergence.Item Manejo sanitário e controle leiteiro de ovelhas mestiças Lacaune e Santa Inês na EMBRAPA Semiárido(2018) Souza, Nathaly Cristina de Menezes Sá; Martins, Jorge André Matias; http://lattes.cnpq.br/9617318260953422; http://lattes.cnpq.br/7212758908210077Item Desenvolvimento do sorgo forrageiro (Sorghum bicolor(L.) Moench) submetido a diferentes dosagens de adubação com manipueira(2018) Cruz, Aloísio dos Santos; Simplício, Josimar Bento; Vieira, Maurício Luiz de Mello; http://lattes.cnpq.br/4204641633941814; http://lattes.cnpq.br/1876691945804390In the Semi-arid region of the Northeast, goat breeding and sheep farming are relevant activities in socioeconomic aspects for rural families. However, the inadequate management of chemical fertilization in this region has added serious environmental problems, and consequently, forage production has been hampered by misapplication of mineral fertilization in production systems. Thus, the objective of this research was to evaluate the response of two genotypes of forage sorghum submitted to different doses of manipueira.The experiment was carried out in the Statistical Unit of Serra Talhada, installed in randomized blocks, in a 4x2x4 factorial scheme, composed of four blocks of two sorghum cultivars and four doses of manipueira (0.0, 12.0, 24.0 and 48, 0 m3ha-1), totaling 32 experimental units. The evaluated characteristics were stem diameter (DC); plant height (AP); number of live leaves (NFV); number of dead leaves (NFM); weight of the green mass (PMV) and weight of the dry mass (PMS). In the interactions obtained by the ANOVA of the data, it can be observed that, of the growth parameters evaluated were significantly altered by the use of manipueira doses, for these variables we observed a quadratic behavior as a function of plant height (AP), the evaluation period (mL / pot) for the two sorghum cultivars IPA 2502 and BRS Ponta Negra, at the height of the IPA 2502 plant the dose of 168.34 mL / pot provided a maximum height of 67cm at 62.51 days , and for BRS Ponta Negra it reached a maximum height of 85 cm, with a dosage of 104.76 mL / pot at 68.65 days, in Figure 2 (a) and (b). For the variable diameter of the stem (DC) Figures 3 (a)and (b), the dose of 168.06 mL / vessel provided the IPA 2502 maximum diameter of 11.82 mm at 49 days, while for the BRS Tip The dose of 101.71 mL / pot provided a maximum diameter of 13.69 mm at 64.29 days. There was no influence of the different dosagesof manipulation for the number of live and dead leaves, total green mass and total dry mass of the leaves. cultivars IPA 2502 and BRS Ponta Negra. The use of manipueira in the conditions established in this research did not promote increases in the production of sorghum forage, however, further evaluations are necessary with new studies on the influence of this fertilizer, since the plants were conditioned to water stress.