Mestrado em Agronomia
URI Permanente para esta coleção
Nível: Mestrado Acadêmico
Ano de início: 2004
Conceito atual na CAPES: 4
Ato normativo: Mestrado - Reconhecido Port. MEC 609, de 14/03/2019, DOU 18/03/2019, parecer 487/2018).
Periodicidade de seleção: Semestral
Área(s) de concentração: Produção Vegetal
Url do curso: https://producaovegetal.ufes.br/pt-br/pos-graduacao/PPGA/detalhes-do-curso?id=1427
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- ItemMonitoramento remoto de pastagem adubada com diferentes fertilizantes de liberação controlada(Universidade Federal do Espírito Santo, 2025-02-07) Cabral, Mateus Oliveira; Moraes, Willian Bucker ; https://orcid.org/0000-0001-7478-7772; http://lattes.cnpq.br/6727861982577995; Souza, Gustavo Soares de ; https://orcid.org/0000-0002-8207-0218; http://lattes.cnpq.br/6563795137628376; Silva, Samuel de Assis ; https://orcid.org/0000-0002-0718-7328; http://lattes.cnpq.br/5587612692274561; https://orcid.org/0000-0003-2790-7174; http://lattes.cnpq.br/4497714489287288; LIma, Julião Soares de Souza ; https://orcid.org/0000-0002-8178-3937; http://lattes.cnpq.br/4456536143814608; Carvalho, Luís Carlos Cirilo ; https://orcid.org/0000-0002-2790-3723; http://lattes.cnpq.br/3224951740660438Proper management of pasture nutrition is essential for normal crop growth and development. Incorrect management of pasture nutrition makes crop areas susceptible to degradation, a common and prevalent problem in pasture-grown areas. Therefore, more efficient use of fertilizer nutrients becomes essential to increase productivity, plant quality, reduce nutrient losses through leaching, volatilization or immobilization, and improve sustainability in the agricultural sector. The objective of this study was to remotely monitor, through the use of vegetation indices, the vegetative development of pasture cultivated with different controlled-release fertilizers. The study was conducted in the experimental field of the Federal University of Espírito Santo (UFES), located in the municipality of Alegre, in a flat area cultivated with Tanzania grass (Panicum maximum cv. Tanzania). The experimental design of the study was a randomized block design (RBD), with a split-plot scheme in time, with two factors. The first factor (plot) involved four fertilization processes, two conventional (split - FCP and non-split - FCNP); two controlled release (non-split) and one control without fertilization. The second factor (subplot) consisted of four evaluation periods (pasture cuts) treated as subplots, in the pre-grazing simulated by mechanical mowing. From remote sensing and in loco evaluations, vegetation indices (NDVI, GNDVI, NDRE, MPRI, MSAVI, VARIG, EVI, CCCI and CI), apparent leaf chlorophyll indices and biometric variables, such as canopy height, fresh and dry mass, were calculated to monitor the effect of fertilizers. The results highlighted the similar performance between controlled release fertilizers (FLC) and conventional split fertilizer (FCP) in maintaining vegetative vigor and fresh and dry mass production of the pasture throughout the study period. Several vegetation indices showed significant correlation with the biometric variables collected in situ of canopy height, fresh mass, dry mass and apparent leaf indices of chlorophyll A, B and total of the pasture over time. The NDRE vegetation index was more sensitive and effective for monitoring and managing pasture fertilization, as it was able to detect, describe and be strongly correlated with the biometric variables collected in situ throughout all the studied cuts. The integration of FLC with vegetation indices proved to be a promising and effective approach for monitoring and sustainable management of pasture fertilization.
- ItemAvaliação dos sistemas de irrigação localizada em Cafeeiro e Citros no Sul do estado do Espírito Santo(Universidade Federal do Espírito Santo, 2025-02-17) Pereira, Maria Luiza Zeferino; Reis, Edvaldo Fialho dos ; https://orcid.org/0000-0003-3823-1472; http://lattes.cnpq.br/2317496014692033; https://orcid.org/0009-0007-9920-6592; http://lattes.cnpq.br/2728699312974586; Garcia, Giovanni de Oliveira; https://orcid.org/0000-0003-1326-9909; http://lattes.cnpq.br/6763740612916491; Gonçalves, Morgana Scaramussa; https://orcid.org/0000-0003-3724-5477; http://lattes.cnpq.br/6029321791491257Through the debate on the efficient use of water in different irrigation techniques, it is necessary to collect information that provides an understanding of the efficient use of this resource when intended for water supplementation of plants. In the southern region of the state of Espírito Santo, citrus and coffee growing are among the main activities that, when irrigated, require information about the performance of the implemented irrigation system. In this sense, the objective of developing this study was to evaluate the efficiency and knowledge of irrigation management in Localized Irrigation systems in conilon coffee and citrus crops in the southern region of the state of Espírito Santo. For the development of this study, irrigation projects already implemented in the municipalities of Alegre, Jerônimo Monteiro and Muqui were used. In the selected projects, the flow rate, uniformity and distribution of water in the systems were determined. Through the flow rate data, the Christiansen Uniformity Coefficient, the Statistical Uniformity Coefficient and the Emission Uniformity Coefficient were determined. In conjunction with the aforementioned tests, interviews were conducted with farmers, which assessed their basic knowledge about irrigation management. The results obtained allowed us to conclude that 75% of the irrigation systems evaluated have a Christiansen Uniformity Coefficient below 90% and only 25% of the systems evaluated have a Statistical Uniformity Coefficient above 84%. Through the interviews conducted, it is possible to state that the interviewees have different understandings and applications regarding irrigation management, which reinforces the need to implement technical training for this audience
- ItemCompostos orgânicos e adubação fosfatada na disponibilidade de P para as plantas(Universidade Federal do Espírito Santo, 2024-11-18) Souza, Inês Viana de; Co-orientador1; https://orcid.org/; http://lattes.cnpq.br/; Co-orientador2; https://orcid.org/; http://lattes.cnpq.br/; Orientador1; https://orcid.org/; http://lattes.cnpq.br/; https://orcid.org/; http://lattes.cnpq.br/; 1º membro da banca; https://orcid.org/; http://lattes.cnpq.br/; 2º membro da banca; https://orcid.org/; http://lattes.cnpq.br/The addition of organic matter to the soil plays an important role in reducing P adsorption by colloids, especially in tropical agricultural systems where soils have high levels of Fe and Al oxides. In addition, organic matter improves the chemical and biological properties of the soil, increasing the efficiency of phosphate fertilizers. In this context, the study aimed to evaluate the effect of organic compounds applied to the soil on P availability for corn and coffee plants using a conventional phosphate source and an organophosphate. In the first experiment, corn was used as a test plant with two consecutive cultivation cycles, each lasting 30 days. In the second experiment, coffee was used as a test plant, with a cultivation duration of 180 days. Both experiments followed a randomized block design (RBD) with four replications, following a 2 x 2 x 5 factorial scheme, in which the study factors were: two sources of organic compost (poultry manure with cotton residue and coffee straw - EA; cattle manure with coffee straw - EB); two sources of P (monoammonium phosphate - MAP and organophosphate - MAPBIO) and five doses of organic compost (0, 10, 20, 30 and 40 t ha-1), totaling 80 experimental units. In the corn crop, the leaf area (AF), leaf dry matter (MSF), stem dry matter (MSC), aerial part dry matter (MSPA) of the 1st and 2nd crop cycle, available P contents (Mehlich-1 extractors and water) and the contents of P, K, Ca and Mg of corn leaves of the 1st and 2nd cycle were determined. In coffee crops, the variables analyzed were leaf area (LA), leaf dry matter (LDM), plagiotropic + orthotropic branch dry matter (PRDM), aerial part dry matter (APDM) and P, K, Ca and Mg contents in coffee leaves. The results from corn crops showed that the application of different organic compounds (EA and EB) increased the efficiency of phosphate fertilization. In the first crop cycle, the organic compound EA with the conventional phosphate source MAP promoted a similar effect to the organophosphate fertilizer MAPBIO on the growth variables analyzed. In the 2nd crop cycle, the fertilizer MAPBIO with the organic compound EA promoted greater development of AF (1588.47 cm² pot-1), MSF (6.30 g pot-1) and MSPA (9.53 g pot-1), and with the organic compound EB from MSC (2.60 g pot-1) and MSPA (8.04 g pot-1). The maximum dose of 40 t ha-1 of the organic compound EA with the phosphate fertilizers MAP and MAPBIO allowed greater development of the corn plant. The increase in the doses of the organic compound EB with the fertilizers MAP and MABIO had no effect on the morphological variables. The coffee crop experiment concluded that the organic compound EB was more efficient in increasing the efficiency of phosphate fertilization, providing greater initial crop development with the variables AF, MSF, MSRPO and MSPA presenting higher differences of 28.64%, 34.20%, 46.42% and 37.54%, respectively, in relation to the morphological variables with the organic compound EA. The application of organic compounds with the conventional phosphate source MAP promoted similar effects to the fertilizer MAPBIO on the morphological variables evaluated. The increase in the doses of the organic compound EA with the fertilizer MAPBIO had negative effects on the availability of P in the soil and there was no effect of doses when associated with MAP. The increase in the doses of the organic compound EB with the MAP fertilizer provided the greatest development of the morphological variables analyzed at the doses of 23.90 t ha-1 (AF), 23.01 t ha-1 (MSF), 23.76 t ha-1 (MSRPO) and 23.20 t ha-1 (MSPA), with no effect of doses with the MAPBIO fertilizer
- ItemBacillus subtilis BV02 e Trichoderma asperellum BV10 no manejo do Cancro dos ramos do cafeeiro (Coffea canephora)(Universidade Federal do Espírito Santo, 2024-07-31) Silva, Sophia Machado Ferreira da; Co-orientador1; https://orcid.org/; http://lattes.cnpq.br/; Co-orientador2; https://orcid.org/; http://lattes.cnpq.br/; Orientador1; https://orcid.org/; http://lattes.cnpq.br/; https://orcid.org/0000-0003-4454-0300; http://lattes.cnpq.br/; 1º membro da banca; https://orcid.org/; http://lattes.cnpq.br/; 2º membro da banca; https://orcid.org/; http://lattes.cnpq.br/The occurrence of phytopathogens in coffee plantations results in significant losses for coffee production, directly threatening the productivity and quality of crops. Among these diseases, Canker of Coffee Trees (CCT) is an increasing challenge, reinforcing the need for innovative and effective management solutions
- ItemIndicadores de qualidade em solos com diferentes níveis de degradação da pastagem(Universidade Federal do Espírito Santo, 2024-07-31) Cardozo, Larissa Guilhermina Campos; Mendonça, Eduardo de Sá ; https://orcid.org/0000-0003-3284-7129; http://lattes.cnpq.br/; Reis, Rayner Hugo Cassa Louzada dos ; https://orcid.org/0000-0002-4227-4136; http://lattes.cnpq.br/; Burak, Diego Lang ; https://orcid.org/0000-0002-6758-3517; http://lattes.cnpq.br/; https://orcid.org/0000-0003-4428-8803; http://lattes.cnpq.br/; Martins, André Guarçoni ; https://orcid.org/0000-0002-6034-8960; http://lattes.cnpq.br/; Souza, Leandro Fonseca de ; https://orcid.org/0000-0002-0774-7428; http://lattes.cnpq.br/Soil under pastures plays a crucial role in sustaining terrestrial ecosystems, influencing their dynamics and functioning. Through visual assessments, it is possible to identify levels of pasture degradation and correlate them with soil attributes, such as aluminum content, organic matter, and compaction, as well as monitor biomass production and pasture degradation. However, for a more robust analysis, it is essential to associate visual aspects with measurable soil attributes, including physical, chemical, and biological indicators, which are fundamental for soil quality and its ability to promote pasture development. The overall objective of this study was to evaluate chemical, physical, and biological indicators of soil quality under pastures with different levels of degradation and their impacts on ecosystem sustainability