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URI permanente desta comunidadehttps://thoth.dti.ufv.br/handle/123456789/3352

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2018 - 20193

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Autor: search.filters.author.Franco Junior, Kleso SilvaAssunto: search.filters.subject.Solos e nutrição do cafeeiro

Resultados da Pesquisa

Agora exibindo 1 - 3 de 3
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    Evaluation of slow release fertilizer on the initial developmentand coffee production
    (Editora UFLA, 2019-10) Franco Junior, Kleso Silva; Carvalho, Julian Silva; Guimarães, Bernardino Cangussu; Barbosa, Camila Karen Reis; Brigante, Giselle Prado; Dias, Marcio de Souza; Aprelini, André; Silva, Nilton de Oliveira
    The objective in this work was to evaluate the efficiency of slow release fertilizer in seedling production, initial development and first coffee production. The research was carried out at Sitio Santa Felicidade, Campestre - MG, Brazil, in a randomized block design with two treatments and ten replicates, totaling 20 experimental plots. Coffee seedlings were produced using Ciclus Substrate (20% N, 22% P2O5 and 5% K2O) and conventional fertilizers 4 kg simple super phosphate (18% P2O5) and 0.25 kg Potassium Chloride (58% K2O). The variables evaluated were size, dry and fresh matter of the shoot and root system, and the seedlings were transplanted to the field and those from Ciclus Substrate received in the first year Ciclus NS (30% N) and in the second year. NK (19-00-19) and conventionally produced with conventional fertilizers (20-00-20 and 25-00-25 respectively), the variables evaluated were: shoot growth, length and number of plagiotropic branch internodes Slow release fertilizer ciclus Substrate has been found to be a viable technology for the production of arabica coffee seedlings, coffee planting NS provides good plant development and coffee producing NK provides good plant growth and higher productivity.
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    Influence of the use of coverage plants and the bioactivator in the physical-biological characteristics of soil cultivated with coffee
    (Editora UFLA, 2019-01) Franco Junior, Kleso Silva; Florentino, Ligiane Aparecida; Dias, Marcio de Souza; Franco, Thais Cristina
    One of the alternatives to increase productivity and without harming the environment is the use of green cover associated with soil bioactivators. However, there are still incipient studies reporting the association influence of these two techniques on soil quality. In this sense, the aim in this work was to evaluate the Penergetic ® bioactivator effect associated to different cover plants on the physical and biological characteristics of the soil cultivated with coffee tree. The experiment was carried out in a coffee field with Catuaí Vermelho cultivar IAC 144, in a randomized block design in a factorial scheme 4 x 2, consisting of control (without plant cover); oats (Avena strigosa) + forage turnip (Raphanus sativus); oats (Avena strigosa) + forage turnip (Raphanus sativus L) + lupine (Lupinus albus) + rye (Secale cereale) + vetch (Vicia sativa) (OFLRV); Brachiaria brizantha (Urochloa brizantha), associated or not with the Penergetic ® bioactivator use. The experiment was conducted for 6 months and after that period physical and biological soil characteristics were analyzed. The data were submitted to variance analysis and the means of treatment were grouped by the Scott-Knott test at 5% probability. The treatments containing cover plants had lower temperature and greater water retention. The bioactivator use reduced the nematodes population from the Meloidogyne genus and when associated to the cover plants showed increased the density of diazotrophic bacteria and solubilizers of phosphorus and potassium.
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    Effect of cover crops and bioactivators in coffee production and chemical properties of soil
    (Editora UFLA, 2018-10) Franco Junior, Kleso Silva; Terra, Ana Beatriz Carvalho; Teruel, Tiago Rezende; Mantovani, José Ricardo; Florentino, Ligiane Aparecida
    Coffee cultivation has great socio-economic relevance in Brazil for the employment and income generation and there is currently a constant search for sustainable management techniques. Among them, we can mention the use of cover crops and soil bioactivators. However, studies relating the use of these two techniques are still incipient. Based on this, the objective of this research was to evaluate the effect of the Penergetic® bioactivator associated with different cover crops on chemical properties of soil and coffee productivity. The experiment was carried out in a coffee field with Catuaí Vermelho cultivar IAC 144, in a randomized block design in a factorial scheme 4 (soil cover) x 2 (use or not of the Penergetic® bioactivator), consisting of control (without plant cover); oats (Avena strigosa) + forage turnip (Raphanus sativus ); oats (Avena strigosa) + forage turnip (Raphanus sativus ) + lupine (Lupinus albus) + rye (Secale cereale) + vetch (Vicia sativa); Brachiaria brizantha (Urochloa brizantha), associated or not with the use of the Penergetic® bioactivator. The experiment was conducted for 6 months and after that period, the chemical properties of soil, the nutrient contents of the coffee plants, the development of the branches and the coffee productivity were analyzed. Data were analyzed by the Scott Knott test at 5% probability. It was verified the interaction between cover crops and the use of the Penergetic® bioactivator, positively influencing soil chemical characteristics, coffee nutrition and productivity.