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Establishment of leaf nutrient patterns for the nutritional diagnosis of Urochl...
Cavalcanti, André Cayô; Partelli, Fábio Luiz; Gontijo, Ivoney; Dias, Jairo Rafael Machado; Freitas, Marta Simone MendonçaTo diagnose and monitor the nutritional status of commercial crops, reference standards must be established based on chemical analyses of soils and leaf tissues. Therefore, the objective of this study was to establish sufficiency ranges, DRIS standards and leaf nutritional diagnoses for palisade grass pastures in the rainy and dry seasons. Of a total of 105 sampled pastures, the 20 highest-yielding areas were u...
Concentration and accumulation of micronutrients in robust coffee
Dubberstein, Danielly; Partelli, Fábio Luiz; Espíndula, Marcelo Curitiba; Dias, Jairo Rafael MachadoKnowledge on the dynamics of micronutrients in coffee tree assists nutritional diagnosis and fertilization management. Therefore, the objective of this study was to evaluate the concentration and accumulation of micronutrients in the leaves and fruits of Coffea canephora. The experiment was managed in crops propagated for 2.5 years in a split-plot-in-time scheme in which the main plots consisted of fertilized a...
Different volumes of tubes for clonal propagation of Coffea canephora from seed...
Espindula, Marcelo Curitiba; Balbino, Tony José; Jaraceski, Rutinéia; Teixeira, Alexsandro Lara; Dias, Jairo Rafael MachadoThe aim in the present study was to evaluate the growth of Coffea canephora cv. ‘Conilon BRS Ouro Preto’ seedlings in different tube volumes. The experiment was performed at Embrapa Rondônia plant nursery in Ouro Preto do Oeste, Rondônia, Brazil, from July to November 2013. The treatments consisted of five tube volumes (50, 100, 170, 280 and 400 cm3) plus one control composed by polyethylene bags (11 cm width x...
Boro forms and doses in the cultivation of carrot in the Western Amazon
Souza, Fábio Régis; Noronha, Phellipe Donald Alves; da Silva, Luciana Sônia; Lapa, Silvia Regina Rodrigues; Transpadini, Edilaine Istéfani FranklinMicronutrient deficiency may limit the productivity of vegetables. Therefore, the present study evaluated the agronomic performance of carrots as a function of application forms and Boron doses. The experimental design was a randomized complete block design with treatments arranged in a 7 x 3 factorial scheme consisting of 7 doses (0, 1, 2, 3, 4, 5 and 8 kg ha-1 ) of B as a borax (11 , 3% of B) and 3 forms of a...
Biometry and gas exchange in clonal cuttings coffee submitted to different subs...
Alves, Erilene Romeiro; Schmidt, Raquel; Moreira, Riziely; Dias, Jairo Rafael Machado; Maia, EmanuelAimed to evaluate the biometry and leaf gas exchange of Coffea canephora seedlings submitted to different substrates, in five evaluation periods. The experiment was carried out in Rolim de Moura, Rondônia. It was conducted in a split plot scheme in time, composed by the combination of three substrates (soil, organic compost and commercial substrate) with five assessment periods (25, 50, 75, 100, 125) days after...
Leaf norms and nutrition diagnosis of coffee conilon in floweting and graining ...
Partelli, Fábio Luiz; Gomes, Wander Ramos; Oliveira, Marcos Goes de; Dias, Jairo Rafael Machado; Espindula, Marcelo CuritibaThe cultivation technology of Coffea canephora advanced significantly, as well as the nutritional requirements of the plants. The objective of this study was to establish the sufficiency range and Leaf Norms (DRIS) of Conilon coffee crops in floweting and grain graining in Espírito Santo, as well as nutritional diagnosis assessment in the region by different methods. The crops selected for the establishment of ...
Influence of fertilization on coffee trees vegetative growth in west south Amazon
Dubberstein, Danielly; Partelli, Fabio Luiz; Dias, Jairo Rafael Machado; Espindula, Marcelo CuritibaThe standard of knowledge of coffee growth is fundamental to assist in the management of crop, due to the growth of seasonal occurrence throughout the year. The objective was to evaluate the vegetative branches growth of coffee located in South Western Amazon in fertilized and unfertilized plants. The trial was carried out in clonal tillage in a randomized block design with three replicates in time split plot. ...
Dry matter in fruits, leaves and plagiotropic branches of grown coffee trees in...
Dubberstein, Danielly; Partelli, Fabio Luiz; Schmidt, Raquel; Dias, Jairo Rafael Machado; Covre, André ManzoliDifferent factors may influence the accumulation of dry matter in the coffee, as the nutritional management and the phenological stage of the plant. This study aimed to assess the number of fruits and the dry matter content in fruits, leaves and reproductive branches of Coffea canephora, fertilized and unfertilized conditions in the Western Amazon. The experiment was conducted in clonal tillage with randomized ...
Normas DRIS preliminares para pupunheira cultivada em diferentes sistemas de ma...
Azevedo, José Marlo Araújo de; Wadt, Paulo Guilherme Salvador; Pérez, Daniel Vidal; Dias, Jairo Rafael MachadoA pupunheira, uma frutífera nativa da América Central e da Floresta Amazônica, vem sendo cultivada para produção de frutos e extração de palmito. Objetivou-se com o presente trabalho estabelecer os valores de referência, pelo DRIS, para palmitais de pupunheira cultivada em monocultivo e em sistemas agroflorestais (SAFs). Foram monitorados 81 palmitais em dois anos consecutivos, totalizando 162 amostras foliares...
DRIS para avalia????o nutricional de laranjeira pera no Amazonas
Dias, Jairo Rafael MachadoMade available in DSpace on 2015-04-20T12:22:41Z (GMT). No. of bitstreams: 1 Jairo Rafael Machado Dias.pdf: 849761 bytes, checksum: dca51d3fa3d74a4571094bea16a2073a (MD5) Previous issue date: 2013-03-15; The culture of the sweet orange is characterized by being an activity of great social and economic importance in the state of Amazonas, in Brazil as well, but lacks information related to nutritional standards ...