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1. Phytosociological survey of spontaneous plant communities in a conventional corn crop area in the region of Carajás, Pará, Brazil

Author

Tiago de Souza Santiago, Crissogno Mesquita dos Santos, Kessy Jhonnes Soares da Silva, Daniel Vítor Mesquita da Costa, Francisca Laila Santos Teixeira, Márcia Everlane de Carvalho Silva, Gislayne Farias Valente, Cândido Ferreira de Oliveira Neto, Daiane de Cinque Mariano, and Ricardo Shigueru Okumura

Subjects
floristic composition, taxonomy, importance value index, General Works
Abstract

The presence of spontaneous plants in agricultural cultivation areas can result in damage to the crop of interest due to competition for natural resources and allelopathy, requiring systematic monitoring for an adequate cultivation management. In this way, the objective was to identify the spontaneous plant communities species in an area of a one-year fallow conventional corn crop in the southeastern of Pará state, in the Brazilian amazon. A phytosociological survey of the plants in the experimental area of the Technological Center of Family Agriculture (CETAF) was carried out, by applying the inventory square method with 1.0 m2, randomly launched twenty times in an area corresponding to 1.1 hectare. The phytosociological parameters analyzed were frequency, relative frequency, density, relative density, abundance, relative abundance and importance value index (IRI). It was found 19 species of spontaneous plants distributed in 11 botanical families, being, Euphorbiaceae (4), Asteraceae (3), Amaranthaceae (2) and Poaceae (2) the most representative in numbers of species sampled. The most important species were Sorghum arundinaceum (IRI = 55.70), Commelina benghalensis (IRI = 47.78) and Synedrella nodiflora (IRI = 42.39). A high diversity of spontaneous plants was verified, emphasizing the need for phytosociological surveys for the definition of integrated control practices in face of the type of cultivation system adopted.

Published
2023
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2. Monitoramento de plantas de paricá em área em processo de restauração florestal

Author

Kessy Jhonnes Soares da Silva, Vitória de Cássia Viana Silva Lima, Daiane de Cinque Mariano, Ângelo Augusto Ebling, André Luis Macedo Vieira, and Ricardo Shigueru Okumura

Subjects
General Agricultural and Biological Sciences, General Environmental Science
Abstract

O objetivo do estudo foi avaliar o desenvolvimento vegetativo do paricá (Schizolobium parahyba var. amazonicum (Huber x Ducke) Barneby), em áreas de pastagens em processo de restauração no Mosaico de Unidades de Conservação de Carajás. O processo de restauração teve início no ano de 2015, no município de Canaã dos Carajás (PA). A área inclui um programa de conectividade de fragmentos florestais, sendo terrenos degradados, antes ocupados por pastagem, que estão sendo recuperados com floresta nativa. As avaliações do desenvolvimento das plantas de paricá foram constituídas pelas variáveis altura da planta, diâmetro à altura do peito, cubagem e projeção da copa. Os dados experimentais foram submetidos à análise de regressão e correlação de Pearson. A partir da cubagem rigorosa, realizada pelo método de Smalian, foi determinado um fator de forma médio igual a 0,55 e forte correlação positiva com os diâmetros e alturas (r = 0,83 e r = 0,86). Por meio dos dados de cubagem foi possível realizar o ajuste de um modelo matemático de dupla entrada (diâmetro à altura do peito e altura como variáveis independentes) para estimativa do fator de forma, em que as estatísticas de ajuste da regressão resultaram valores relativamente altos para o coeficiente de determinação (R² = 0,78) e baixos para o erro padrão da estimativa (Syx = 0,05). Aplicando o modelo logaritmizado de Schumacher-Hall para estimativa volumétrica foram obtidas boas estatísticas de ajuste, com elevado coeficiente de determinação (R² = 0,99), baixo erro padrão da estimativa (Syx = 0,07) e dispersão de resíduos sem tendenciosidades.

Published
2022
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3. Crescimento de espécies nativas tropicais de diferentes grupos ecológicos em área degradada na Amazônia brasileira

Author

Jainara Santos Jansen, Hermogenes Ronilson Silva de Sousa, Ricardo Shigueru Okumura, Daiane de Cinque Mariano, Kamila da Silva Teles Gonçalves, Cândido Ferreira de Oliveira Neto, Ângelo Augusto Ebling, and Kessy Jhonnes Soares da Silva

Subjects
Marketing, Pharmacology, Organizational Behavior and Human Resource Management, Strategy and Management, Drug Discovery, Pharmaceutical Science
Published
2020
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4. CHEMICAL AND ORGANIC FERTILIZATION IN DEVELOPMENT OF NATIVE SPECIES USED IN SLOPE RECOVERY

Author

Ricardo Shigueru Okumura, Ângelo Augusto Ebling, Daniel Vítor Mesquita da Costa, Andréa Siqueira Carvalho, Kessy Jhonnes Soares da Silva, Tiago de Souza Santiago, Tayla da Silva Sousa, and Daiane de Cinque Mariano

Subjects
Marketing, Pharmacology, Organizational Behavior and Human Resource Management, Human fertilization, Agronomy, Strategy and Management, Drug Discovery, Pharmaceutical Science, Introduced species, Biology
Published
2020
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5. EFFECTS OF MINERAL AND ORGANIC FERTILIZATION ON THE GROWTH OF SPONDIAS MOMBIN IN AN AREA OF ENVIRONMENTAL RECOVERY IN THE AMAZON REGION

Author

Kessy Jhonnes Soares da Silva, Daiane de Cinque Mariano, Ângelo Augusto Ebling, André Luis Macedo Vieira, and Ricardo Shigueru Okumura

Subjects
Marketing, Pharmacology, Organizational Behavior and Human Resource Management, Amazon rainforest, Strategy and Management, Pharmaceutical Science, Sowing, Biology, biology.organism_classification, Manure, Human fertilization, Animal science, Drug Discovery, Hectare, Spondias mombin
Abstract

Spondias mombin L. (Tapereba) is a species used in degraded area recovery programs in rainforests for the maintenance of the ecosystem. The objective of this study was to evaluate the differences in the height, waist diameter, and mortality of Tapereba submitted to different doses of mineral and organic fertilizers in a recovery area in the southeastern region of Para State, Brazil. The experimental area was divided into 4 blocks of 1 hectare each, composed of 25 planting rows with 25 plants in each row, totaling 625 plants∙ha -1 . The treatments applied were: T1 - only hydrogel; T2 - cattle manure + hydrogel; T3 - cattle manure + 150 g NPK (04:14:08); T4 - 1 L cattle manure + 450 g single superphosphate (SSP) + 120 g NPK (04:14:08); T5 - 1 L cattle manure + 300 g SSP + 50 g NPK (04:14:08) + 120 g NPK (04:14:08). The measurements were conducted 12, 240, and 330 days after planting. The following parameters were measured: ground-level diameter (GLD), plant height (PH), and mortality rate. We noted statistical differences in GLD and PH between treatments at different evaluation periods. The GLD and PH of T5 were 14.68 mm and cm 79.58, respectively. During the experimental period, Tapereba had a mortality rate of 44.78%, the average annual increase in GLD and PH was 9.41 mm and 18.91 cm, respectively. At 330 days after planting, the T5 treatment elicited the highest average plant height for the seedlings in the forest restoration project.

Published
2020
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7. Empreendedorismo e Inovação na Engenharia Florestal 2

Author

Kessy Jhonnes Soares da Silva, Mario Luiz Teixeira de Moraes, Adéliton da Fonseca de Oliveira, Samuel de Barros Silva, Alexandre Marque da Silva, Ivan da Costa Ilhéu Fontan, Everton Monteiro da Costa, Yonny Martinez Lopez, Gleysla Gonçalves de Carvalho Fernandes, André Luis Macedo Vierira, Kamila da Silva Teles Gonnçalves, Lara Comar Riva, Erasmo Luis Tonett, Vânia Aparecida de Sá, Ricardo Shigueru Okumura, Erika Rayra Lima Nonato, Marcelo Bonazza, Antonio Amador de Sousa, Nayra Beatriz de Souza Rodrigues, Daiane de Cinque Mariano, Victor Augusto Lopes Maranhão, Isadora Azevedo Perpétuo, Gilberto Andresen Saraiva Lima Chaves, Marcelo Pereira Dutra Júnior, João Sammy Nery de Souza, Danielly Macedo Vieira, Isleia de Oliveira Silva, Bruno Oliveira Lafetá, Stheffany Carolina da Silva Lóz, Gabriel Costa Galdino, Vinicius Schappo Hillesheim, Anne Carolyne Silva Vieira, Mayara Dalla Lana, Clícia Martins Benvinda Nóbrega, Ana Paula Brito de Sousa, Thaís Souza Marques, Francieli Alves Caldeira Saul, Fabricio Gomes Gonçalves, Daniele Fernanda Zulina, Luís Henrique Ferrari, Thiago Pereira Chaves, Juliana Araujo Leite, Mariana da Silva Leal, André Luis Macedo Vieira, Raquel Elvira Cola, Helen Michels Dacoregio, Rita de Cassia Henriques Delfino, Luana do Carmi Oliveira Ferreira, Denize Monteiro dos Anjos, Mellina Nicácio da Luz, Rayara Barros Silva, Geovanio Alves da Silva, Luilla Lemes Alves, Eder Ferreira Arriel, Mayara Aparecida de Moraes, Júnior Hiroyuki Ishihara, juliana fonseca, Hermogenes Ronilson Silva de Sousa, Amanda Nadielle Barros Isoton, Ismael de Jesus Matos Viégas, Vanessa Patrícia Berté Kafer, Pedro Gutemberg de Alcântara Segundinho, Franciny Lieny Souza, Mayara Suellem dos Santos Marinho, Renata Guilherme Cândido da Silva, Juarez Benigno Paes, Jean Alberto Sampietro, Raizza Eveline Escórcio Pinheiro, Maurício Leodino de Barros, Regivan Antonio de Saul, José Cambuim, Valeska Regina Silva Martins, Lucas Galdino da Silva, Ângelo Augusto Ebling, Cristiane Matos da Silva, Maiara Ribeiro Cornacini, Felipe Silva de Medeiros, Gil Sander Próspero Gama, Vitória de Cássia Viana Silva Lima, Andreza Rafaella Carneiro da Silva dos Santos, Natali de Oliveira Pitz, Daniele Fernanda Zulian, Luiza Layana Oliveira Rodrigues Menezes, Carlos Frederico Lins e Silva Brandão, Emily Soares Gomes da Silva, Marcela Aparecida de Moraes, Daiane Alves de Vargas, Alexandre Marques da Silva, Ícaro Tourino Alves, Luciane Missae Sato, Cândido Ferreira de Oliveira Neto, Tamires Mousslech Andrade Penido, Álisson Rangel Albuquerque, Andréa de Vasconcelos Freitas Pinto, Marcos Alves Nicácio, and Sérvio Túlio Pereira Justino

Published
2020
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