Agronomic efficiency of potassium fertilization in lettuce fertilized with alternative nutrient sources Eficiência agronômica da adubação potássica na alface adubada com fontes alt... by Douglas Ramos Guelfi-Silva, Giuliano Marchi, Carlos Roberto Spehar, Luiz Roberto Guimarães Guilherme, Valdemar Faquin

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Productive characteristics, nutrition and agronomic efficiency of polymer-coated MAP in lettuce crops by Wantuir Filipe Teixeira Chagas, Eduardo Bucsan Emrich, Douglas Ramos Guelfi, André Luiz Carvalho Caputo, Valdemar Faquin

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Acúmulo de macronutrientes na soja influenciado pelo cultivo prévio do capim-marandu, correção e compactação do solo Macronutrient accumulation in the soybean influenced by prior c... by Marcos André Silva Souza, Valdemar Faquin, Douglas Ramos Guelfi, Geraldo César de Oliveira, Carla Elisa Alves Bastos

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Nitrogen loss by volatilization of nitrogen fertilizers applied to coffee orchard by Anderson William Dominghetti, Douglas Ramos Guelfi, Rubens José Guimarães, André Luiz Carvalho Caputo, Carlos Roberto Spehar, Valdemar Faquin

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Cultivo do tomateiro em substratos orgânicos sob aplicação foliar de silicato de potássio em ambiente protegido Cultivation of tomato in organic substrates under leaf spraying of p... by Eduardo Bucsan Emrich, Rovilson José de Souza, Antonio Anicete de Lima, Felipe Campos Figueiredo, Douglas Ramos Guelfi Silva

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Doses e fontes de nitrogênio na recuperação das características estruturais e produtivas do capim-marandu Rates and sources of nitrogen in the recovery of the structural and produc... by Douglas Ramos Guelfi Silva, Kátia Aparecida de Pinho Costa, Valdemar Faquin, Itamar Pereira de Oliveira, Thiago Fernandes Bernardes

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Phosphite as phosphorus source to grain yield of common bean plants grown in soils under low or adequate phosphate availability Fosfito como fonte de fósforo para produção de grãos... by Fabricio William Ávila, Valdemar Faquin, Douglas Ramos Guelfi Silva, Carla Elisa Alves Bastos, Nilma Portela Oliveira, Danilo Araújo Soares

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Ammonia and carbon dioxide emissions by stabilized conventional nitrogen fertilizers and controlled release in corn crop by Taylor Lima de Souza, Douglas Ramos Guelfi, André Leite Silva, André Baldansi Andrade, Wantuir Filipe Teixeira Chagas, Eduardo Lopes Cancellier

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Ammonia volatilization from blends with stabilized and controlled-released urea in the coffee system by Wantuir Filipe Teixeira Chagas, Douglas Ramos Guelfi, André Luiz Carvalho Caputo, Taylor Lima de Souza, André Baldansi Andrade, Valdemar Faquin

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Previous cultivation of palisade grass and soil correctives: influence on growth and yield of soybean cultivated under various soil compaction levels Cultivo prévio de braquiarão e... by Marcos André Silva Souza, Douglas Ramos Guelfi Silva, Fabrício William Ávila, Valdemar Faquin, Geraldo César de Oliveira, Carla Elisa Alves Bastos

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EFFECT OF ALTERNATIVE MULTINUTRIENT SOURCES ON SOIL CHEMICAL PROPERTIES by Vanessa Martins, Douglas Ramos Guelfi Silva, Giuliano Marchi, Maurício Cunha Almeida Leite, Éder de Souza Martins, Ana Stella Freire Gonçalves, Luiz Roberto Guimarães Guilherme

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Eficiência nutricional e aproveitamento do nitrogênio pelo capim-marandu de pastagem em estágio moderado de degradação sob doses e fontes de nitrogênio Nutritional efficiency and n... by Douglas Ramos Guelfi Silva, Kátia Aparecida de Pinho Costa, Valdemar Faquin, Itamar Pereira de Oliveira, Milena Rízzia Ferreira de Souza, Marcos André Silva Souza

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Manganese fertilization for sweet cassava production under organic management system by Giuliano Marchi, Josefino de Freitas Fialho, Thomaz Adolpho Rein, João de Deus Gomes dos Santos Junior, Eduardo Alano Vieira, José Carlos Sousa-Silva, Juaci Vitória Malaquias, Douglas Ramos Guelfi Silva

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