Teores de micronutrientes nas folhas de milho fertilizadas com lodo de curtume
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Data
2007-06
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Resumo
This investigation aimed to study the accumulation of micronutrients in the leaves of corn plants
fertilized with tanning mud. Therefor an experiment in pot culture was conducted in a greenhouse of the Empresa Brasileira
de Pesquisa Agropecuária (Embrapa-Arroz e Feijão) located at 16°27’ latitude S, 49°17’ longitude W Gr. And 823 m above
sea level, in the county of Santo Antônio de Goiás, GO. The experimental design was completely randomized in four
replications and the following treatments: Control, tanning mud at 113.1 ml pot -1 (36 m 3 ha -1 ) = Mud-36; tanning mud at
226.2 ml pot -1 (72 m 3 ha -1 ) = Mud-72; tanning mud at 452.4 ml pot -1 (144 m 3 ha -1 ) = Mud-144; tanning mud at 904.8 ml pot -1
(288 m 3 ha -1 ) = Mud-288; mineral fertilizer at 1.256 g pot -1 of NPK 04-30-16 plus Zn (400 kg ha -1 ) = Chemical; and Mud-
144 plus Chemical. The chemical soil analysis was accomplished in two layers, 0-20 cm and 20-40 cm. Further were
analyzes the contents of copper, iron, manganese and zinc in the green matter. There was no significant difference in copper
content among treatments. The treatment Chemical showed significantly higher content in iron than all others. Mud-72 was
significantly superior to all other treatments in manganese content. The highest content of zinc was found in treatment Mud-
144 plus Chemical, superior to all others. The yield of green matter tended to grow with increasing levels of tanning mud but
the highest yield was found in treatment Mud-144 plus Chemical.
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Resíduo industrial, Zea mays, Nutrição de plantas, Industrial refuse, Zea mays, Plant nutrition
Citação
BORGES, Jácomo Divino; BARROS, Rosana Gonçalves; SOUZA, Eli Regina Barboza de; OLIVEIRA JUNIOR, Juarez Patrício de; LEANDRO, Wilson Mozena; OLIVEIRA, Itamar Pereira de; CARNEIRO, Maurízia de Fátima; NAVES, Ronaldo Veloso; SONNENBERG, Peter Ernst. Teores de micronutrientes nas folhas de milho fertilizadas com lodo de curtume. Bioscience Journal, Uberlândia, v. 23, n. 2, p. 1-6, abr./jun. 2007.