Ciência e Agrotecnologia: Recent submissions

  • Load-bearing capacity of a red-yellow latosol cultivated with coffee plants subjected to different weed managements
    Pais, Paula Sant’Anna Moreira; Dias Junior, Moacir de Souza; Dias, Adriana Cristina; Iori, Piero; Guimarães, Paulo Tácito Gontijo; Santos, Gislene Aparecida dos (Editora UFLA, 2013-03)
    It is essential to know the levels of pressure applied to the soil by different weed managements to adapt the management of coffee plantations in a sustainable manner. The objectives of this study were: a) to generate ...
  • Comparison of field and laboratory models of the load bearing capacity in coffee plantations
    Iori, Piero; Dias Junior, Moacir de Souza; Ajayi, Ayodele Ebenezer; Guimarães, Paulo Tácito Gontijo; Pais, Paula Sant'Anna Moreira; Andrade, Maria Luiza de Carvalho (Editora UFLA, 2013-03)
    Precompression stress is an important property for assessment of tropical soil structure sustainability and is often determined in laboratory tests. The objective of this study was to compare the load bearing capacity ...
  • Water retention and S index of an oxisol subjected to weed control methods in a coffee crop
    Siqueira, Raphael Henrique da Silva; Ferreira, Mozart Martins; Alcântara, Elifas Nunes de; Silva, Bruno Montoani; Silva, Raphael Comanducci (Editora UFLA, 2014-09)
    Weed control in different crops affects the chemical, physical, and biological properties of the soil and consequently its structural quality. The objective of this study was to evaluate, using water retention characteristics ...
  • Use of coffee use (Coffea arabica) pulp for the production of briquettes and pellets for heat generation
    Cubero-Abarca, Robert; Moya, Roger; Valaret, Jorre; Tomazello Filho, Mario (Editora UFLA, 2014-09)
    Coffee bean (Coffea arabica) processing generates high amount of residues that are sources of environmental pollution. Therefore, an appropriate solution is needed. The objective of this study was to determine the potential ...
  • Anatomic and physiological modifications in seedlings of Coffea arabica cultivar Siriema under drought conditions
    Melo, Emanuelle Ferreira; Fernandes-Brum, Christiane Noronha; Pereira, Fabrício José; Castro, Evaristo Mauro de; Chalfun-Júnior, Antonio (Editora UFLA, 2014-01)
    Due to the weather changes prognostic for the coming years, the understanding of water deficit and physiological responses of plants to drought becomes an important requirement in order to develop technologies such as ...
  • Activity of some isoenzymatic systems in stored coffee grains
    Saath, Reni; Broetto, Fernando; Biaggioni, Marco Antônio Martin; Borém, Flávio Meira; Rosa, Sttela Dellyzete Veiga Franco da; Taveira, José Henrique da Silva (Editora UFLA, 2014-01)
    Considering the worldwide consumption of coffee, it is natural that throughout the history many people have dedicated the research to markers that contribute somehow on gauging its quality. This research aimed to evaluate ...
  • Solubilization of potassium from alternative rocks by humic and citric acids and coffee husk
    Pessoa, Rodrigo Souza; Silva, Carlos Alberto; Moretti, Bruno Silva; Furtini Neto, Antônio Eduardo; Inda, Alberto Vasconcellos; Curi, Nilton (Editora UFLA, 2015-11)
    Brazil imports most of the potassium that it consumes in agriculture, however, such huge external dependence can be minimized with the use of alternative local K bearing rocks. This experiment was conducted with the objective ...
  • Gas exchange and carbohydrate partitioning in cooffee seedlings under waterlogging
    Silveira, Helbert Rezende de Oliveira; Souza, Kamila Rezende Dázio de; Alves, Jose Donizeti; Santos, Meline de Oliveira; Andrade, Cínthia Aparecida; Bomfim, Sandro Costa (Editora UFLA, 2015-03)
    Irrigation has enhanced coffee production in several regions of Brazil. However, with the increase in irrigated crop areas, problems related to the frequent and poorly planned usage of irrigation may arise. Since there are ...
  • Coffee yield and phosphate nutrition provided to plants by varius phosphorus sources and levels
    Dias, Kaio Gonçalves de Lima; Furtini Neto, Antônio Eduardo; Guimarães, Paulo Tácito Gontijo; Reis, Thiago Henrique Pereira; Oliveira, Cesar Henrique Caputo de (Editora UFLA, 2015-03)
    Phosphorus (P) is considered one of the nutrients that most limits crop yields, especially in soils with an advanced degree of weathering. To evaluate P dynamics and availability in soil resulting from various P doses and ...
  • Genetic diversity in arabica coffee grown in potassium-constrained environment
    Moura, Waldênia de Melo; Soares, Yaska Janaína Bastos; Amaral Júnior, Antônio Teixeira do; Lima, Paulo César de; Martinez, Hermínia Emília Prieto; Gravina, Geraldo de Amaral (Editora UFLA, 2015-01)
    Potassium is a source of non-renewable natural resource, and is used in large quantities in coffee fertilization through basically imported formulations in the form of potassium chloride. An alternative to make production ...
  • Ammonia volatilization from blends with stabilized and controlled-released urea in the coffee system
    Chagas, Wantuir Filipe Teixeira; Guelfi, Douglas Ramos; Caputo, André Luiz Carvalho; Souza, Taylor Lima de; Andrade, André Baldansi; Faquin, Valdemar (Editora UFLA, 2016-09)
    Application of stabilized and controlled-release urea blends can reduce the losses of N-NH3 as compared to conventional urea. The aim of this study was to quantify ammonia volatilization from conventional nitrogen fertilizers ...
  • Cryopreservation of coffee zygotic embryos: dehydration and osmotic rehydration
    Pinto, Maísa de Siqueira; Paiva, Renato; Silva, Diogo Pedrosa Corrêa da; Santos, Paulo Augusto Almeida; Freitas, Rodrigo Therezan de; Silva, Luciano Coutinho (Editora UFLA, 2016-07)
    Conservation of plant genetic resources is important to prevent genetic erosion. Seed banks are the most common method of ex situ conservation; however, coffee seeds can not be stored by conventional methods. Cryopreservation ...
  • Temperature and light intensity interaction on Cercospora coffeicola sporulation and conidia germination
    Silva, Marília Goulart da; Pozza, Edson Ampélio; Lima, Caio Vitor Rodrigues Vaz de; Fernandes, Tales Jesus (Editora UFLA, 2016-03)
    Difficulty in obtaining abundant sporulation in culture of many species of Cercospora may be the limiting factor for studies of biology, systematics, and inoculation of the genus. Therefore, it is necessary to understand ...
  • Nitrogen loss by volatilization of nitrogen fertilizers applied to coffee orchard
    Dominghetti, Anderson William; Guelfi, Douglas Ramos; Guimarães, Rubens José; Caputo, André Luiz Carvalho; Spehar, Carlos Roberto; Faquin, Valdemar (Editora UFLA, 2016-03)
    Ammonia volatilization (N-NH3) is one of the main pathways of Nitrogen loss reducing nitrogen use efficiency in coffee orchard. This work aimed at quantifying ammonia volatilization (N-NH3) losses from N-sources to be used ...
  • Tolerance of Coffea arabica L. seeds to sub zero temperatures
    Coelho, Stefania Vilas Boas; Rosa, Sttela Dellyzete Veiga Franco da; Clemente, Aline da Consolação Sampaio; Pereira, Cristiane Carvalho; Figueiredo, Madeleine Alves de; Reis, Leandro Vilela (Editora UFLA, 2017-05)
    Preservation of the quality of coffee seeds is hindered by their intermediate behavior in storage. However, long-term storage at sub zero temperatures may be achieved by adjusting the water content of the seeds. The aim ...
  • Eucalyptus wood and coffee parchment for particleboard production: physical and mechanical properties
    Scatolino, Mário Vanoli; Costa, Andrey de Oliveira; Guimarães Júnior, José Benedito; Protásio, Thiago de Paula; Mendes, Rafael Farinassi; Mendes, Lourival Marin (Editora UFLA, 2017-03)
    The wood panel industry is constantly growing, being necessary the innovation in technologies and raw materials to improve the quality of the final product. Considering the shortage and pressure to decrease the dependence ...
  • Spacial distribution of fertigated coffee root system
    Vicente, Marcelo Rossi; Mantovani, Everardo Chartuni; Fernandes, André Luís Teixeira; Neves, Júlio César Lima; Figueredo, Edmilson Marques; Delazari, Fábio Teixeira (Editora UFLA, 2017-01)
    The development of coffee plant root system changes when subjected to drip irrigation and fertigation. This work aimed to evaluate the effects of different levels of fertigation on the development of coffee root system by ...
  • Chemical composition and antioxidant capacity of coffee pulp
    Ameca, Graciela Munguía; Cerrilla, María Esther Ortega; Córdoba, Pedro Zetina; Cruz, Antonio Díaz; Hernández, Marcos Soto; Haro, José Herrera (Editora UFLA, 2018-05)
    Coffee pulp is produced in large quantities, and its disposal can pollute the environment. However, the nutritional value and antioxidant content of coffee pulp make it a good option for animal feed. Therefore, the objective ...
  • Monoammonium phosphate coated with polymers and magnesium for coffee plants
    Guelfi, Douglas Ramos; Chagas, Wantuir Filipe Teixeira; Lacerda, Jordana Reis; Chagas, Rafael Mattioli Rezende; Souza, Taylor Lima de; Andrade, André Baldansi (Editora UFLA, 2018-05)
    The coating of phosphate fertilizer granules with polymers and magnesium (Mg) is a technology that can improve phosphorus (P) use efficiency and mitigate problems of low Mg supply in coffee crops. The objective of this ...
  • Economic analisys of a coffee-banana system of a family-based agriculture at the atlantic forest zone, Brazil
    Alves, Elaine Ponciano; Silva, Márcio Lopes da; Oliveira Neto, Sílvio Nolasco de; Barrella, Tatiana Pires; Santos, Ricardo Henrique Silva (Editora UFLA, 2015-05)
    Agroforestry systems can reduce the risks of investing in just one crop. However, there are uncertainties like other agricultural and forestry activities. Therefore, there is the need for economic studies under conditions ...

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