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• W2915948275 abstract "A adubação em áreas de plantios florestais é necessária para suprir as necessidades nutricionais das plantas, no entanto, a quantidade de nutrientes deve ser equilibrada, porque pode afetar a qualidade da madeira produzida. Diante disso, foi realizado estudo com o objetivo de verificar a influência da adubação nos teores de cinzas, de carbono e de relação C/N em plantas de Tectona grandis Linn. F. Primeiramente, efetuou-se a calagem do solo e, após 15 dias, foram realizadas as adubações com N, P e K: N = 0, 40, 80 e 120 kg ha-1; P2O5 = 0, 50, 100 e 200 kg ha-1 e; K2O = 0, 50, 100 e 200 kg ha-1. Aos 180 dias, as plantas dos 20 tratamentos, que apresentaram os maiores crescimentos em altura e diâmetro, foram transplantadas para o campo. Anteriormente ao plantio, o solo foi calcareado e adubado conforme os tratamentos que proporcionaram o maior crescimento e, as mudas foram plantadas, totalizando 20 tratamentos e seis repetições. Após 12 meses, as plantas foram retiradas para determinação dos teores de cinzas, de carbono orgânico e de relação C/N. As cinzas foram submetidas às digestões para determinações das concentrações de nutrientes. A T. grandis, em estágio inicial de crescimento, apresentou características para utilização como carvão vegetal. Sendo que os elementos inorgânicos que predominaram, após 360 dias, foram N, P, K e B. Palavras-chave: Tectona grandis. Nutrição Florestal. Adubação Mineral. Compostos Inorgânicos. AbstractFertilization in areas of forest plantations is necessary to meet the plants’ nutritional needs, however, the amount of nutrients must be balanced because they can affect the quality of the wood produced. A study was carried out to verify the influence of fertilization on the ash, carbon and C/N ratio in Tectona grandis Linn F. plants. Firstly, the soil liming was performed and, after 15 days, the fertilizations were carried out with N, P and K: N = 0, 40, 80 and 120 kg ha-1; P2O5 = 0, 50, 100 and 200 kg ha-1 e; K2O = 0, 50, 100 and 200 kg ha-1. At 180 days the plants of the 20 treatments that presented the greatest growth in height and diameter were transplanted to the field. Prior to planting, the soil was limed and fertilized according to the treatments that provided the highest growth, and the seedlings were planted, totaling 20 treatments and six replications. After 12 months, the plants were removed for determination of ash, organic carbon and C/N ratio. The ashes were submitted to digestion for determinations of nutrient concentrations. T. grandis, in the initial stage of growth, presented characteristics for use as charcoal. The predominant inorganic elements after 360 days were N, P, K and B. Keywords: Tectona Grandis. Forest Nutrition. Mineral Fertilization. Inorganic Compounds." @default.
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• W2915948275 date "2018-12-30" @default.
• W2915948275 modified "2023-09-25" @default.
• W2915948275 title "Adubação nos Teores de Cinzas, Carbono e Relação C/N de Teca" @default.
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• W2915948275 doi "https://doi.org/10.17921/1415-5141.2018v22n2p124-130" @default.
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