537 resultados para Farelo de coco


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Considering there are few researches about the influence of seedlings fertilization on yield, this work was carried out in order to evaluate the effect of rates of nitrogen and potassium, applied by fertirrigation, in endive seedlings on yield. Two experiments were carried out, the first with four treatments, varying nitrogen rates, and the second with four potassium rates. In both, experimental design was randomized blocks, with four replications. In the first experiment, we utilized ammonium nitrate, weekly, at rates 0; 40; 80 and 120 mg of N L-1, while in the second experiment we utilized potassium chloride, weekly, at rates 0; 70; 140 and 210 mg of K2O L-1. The evaluated characteristics at seedling stage were shoot height, number of leaves, fresh and dry shoot weight. At harvesting, we evaluated plant height, diameter, number of leaves and fresh weight. Potassium rates did not influence all characteristics, at seedling and at harvesting stages. For all seedling characteristics, there was linear increasing depending on nitrogen rates. But, for plant fresh weight, diameter and number of leaves at harvesting, the effect was quadratic. The highest fresh weight and number of leaves at harvesting were obtained with 90 mg of N L-1.

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The outdoor cultivation (ditches) of Agaricus blazei was evaluated in the protected natural area (APA) of the mountainous region of Baturité on three types of casing soils (A, B and C). Casing soil A (horizon A) of the local soil was used (Alfisol). Casing B was obtained with a mixture of 30% of eucalyptus charcoal (1-2 cm of length) and 70% of horizon B of the local soil. Casing C was composed of 25% of vermiculite, 25% of coconut fiber and 50% of coarse sand. Temperature, relative humidity and pluviometric rates were monitored. The physical-chemical properties of the three casing soils were analyzed. The effect of the casing soil on the number and weight of the mushrooms, productivity, yield and biological efficiency of A. blazei were evaluated. The yield, productivity, biological efficiency and number of mushrooms were higher when using soil A. The highest productivity for soil A was attributed mainly to the physical characteristics, which were considered more appropriate for the cultivation, in addition to the high pluviometric rates and relative humidity. The productivity with soil A (9.62%) is comparable with the average productivity obtained in Brazil, meaning that the cultivation of A. blazei in this APA may have good perspectives for cultivation.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Zootecnia - FCAV

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Pós-graduação em Zootecnia - FMVZ

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Pós-graduação em Zootecnia - FCAV

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Pós-graduação em Zootecnia - FCAV

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Pós-graduação em Agronomia (Proteção de Plantas) - FCA

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)