Quantificação de macronutrientes no solo e em folhas de cana-de-açúcar em função de doses de resíduo da mineração de bauxita
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Data
2010-01-01
Autores
de Nobile, Fabio O. [UNESP]
Galbiatti, Joao Antonio [UNESP]
Muraishi, Reginaldo [UNESP]
Ribeiro, Adriano G. [UNESP]
Freddi, Ona da S. [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Soc Brasil Engenharia Agricola
Resumo
The experiment was carried out in green house with the objective of evaluating the effect of the bauxite mining residue in the rates of macronutrients in sugarcane and soil. Containers of 10 L were used. They received the following rates of bauxite residue: 0; 28; 56; 84; 112 and 140 t ha(-1). The used culture was the sugarcane (SP92 4221). The incorporation of the bauxite residue in the soil provided an increase in the levels of the soil macronutrients, and only for sulphur levels above 83 t ha(-1), it was possible to provide reductions of this nutrient. For rates of determined macronutrients in the leaf, levels above 70, 5; 125; 101; 56 t ha (-1) diminished the rates of nitrogen, phosphorum, potassium and sulphur, respectively. However, for calcium and magnesium the use of the residue provided the reduction of leaf rates. The level of the bauxite residue which had the largest production of dry mass was 64 t ha(-1).
Descrição
Palavras-chave
Sacharum oficinarum, soil conditioners, Residues
Como citar
Engenharia Agricola. Jaboticabal: Soc Brasil Engenharia Agricola, v. 30, n. 1, p. 168-178, 2010.