Tesis
Influência da adubação mineral na qualidade de mudas e da madeira de teca e paricá
Fecha
2015-03-10Registro en:
VIEIRA, Cristiane Ramos. Influência da adubação mineral na qualidade de mudas e da madeira de teca e paricá. 2015. 123 f. Tese (Doutorado em Agricultura Tropical) - Universidade Federal de Mato Grosso, Faculdade de Agronomia, Medicina Veterinária e Zootecnia, Cuiabá, 2015.
Autor
Weber, Oscarlina Lúcia dos Santos
Scaramuzza, José Fernando
http://lattes.cnpq.br/7329755820136392
http://lattes.cnpq.br/6385657569274801
Weber, Oscarlina Lúcia dos Santos
141.427.751-20
http://lattes.cnpq.br/6385657569274801
Scaramuzza, Walcylene Lacerda Matos Pereira
279.029.352-04
http://lattes.cnpq.br/1445438952387874
141.427.751-20
410.422.396-49
Behling, Maurel
651.558.401-63
http://lattes.cnpq.br/3275063450975819
Brondani, Gilvano Ebling
001.861.780-85
http://lattes.cnpq.br/4095993222888432
Scaramuzza, José Fernando
410.422.396-49
http://lattes.cnpq.br/7329755820136392
Araujo, Charles de
702.759.209-68
http://lattes.cnpq.br/7434728453143274
Institución
Resumen
The incorrect fertilization management limits the seedlings growth in
the nursery and on the field, prejudicing the obtaining of forest products. For this, two
experiments was installed with the aim to analyze the growth of Tectona grandis and
Schizolobium amazonicum [Schizolobium parahyba var. amazonicum] at different
levels of NPK in order to characterize their quality in the nursery and in the field, and
indicate the effects of fertilization on wood quality on the 1º year after the planting.
Fot this, it was used Cambisol of loamy sand, limestoned considering base saturation
of 50%. After, the fertilizer was realized in factorial 4x4x4: N = 0, 40, 80 and 120 kg
ha-1 with urea PA; P2O5 = 0, 50, 100 and 200 kg ha-1
, with super simple; K2O = 0, 50,
100 and 200 kg ha-1 KCl PA. The seedlings were grown and when they reach 15 cm
were transplanted to plastic bags containing soil limestoned and fertilized. For growth
analysis, measurements were taken of height, diameter, biomass, macro and
micronutrients at 180 days. The data were analyzed in a factorial design. After 180
days, the seedlings, submitted to treatments that provided the greatest growth, were
transplanted to the field on planting hole previously limestoned and fertilized, staying
for 12 months. Then, the plants were analyzed for the levels of ash and carbon. In
the case of T. grandis, fertilization with 80 kg ha-1 N, 50 kg ha-1
of P2O5 and 100 kg
ha-1
of K2O was the one that provided the highest growth in the nursery and in the
field; the best combinations with NPK were 80 kg ha-1 N, 0 kg ha-1
of P2O5 and 50 kg
ha-1
of K2O and 120 kg ha-1 N, 100 kg ha-1 P2O5 and 50 kg ha-1 K2O. These
fertilizations for T. grandis showed greater growth in height, diameter and biomass
and appropriate values for the ash content, total carbon and the C/N relation. About
S. amazonicum, the fertilization more favored the seedlings growth was 120 kg ha-1
N, 100 kg ha-1
of P2O5 and 50 kg ha-1
of K2O in the nursery. And in the field, 0 kg ha-1
N, 200 kg ha-1
of P2O5 and 50 kg ha-1
of K2O, providing the greater growth in height,
diameter and biomass and appropriate values for the ash content, total carbon and
the C/N relation. The NPK fertilizer influenced the growth of T. grandis and S.
amazonicum in the nursery and in the field, and the levels of ash content and carbon.
In both cases, these results suggest the use of young wood these species for use as
charcoal.