Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/29348
Título: Effect of liming on micronutrient availability to soybean grown in soil under different lengths of time under no tillage
Título(s) alternativo(s): Efeito da calagem na disponibilidade de micronutrientes para soja, cultivada em solo sob diferentes tempos de cultivo em plantio direto
Palavras-chave: Soja - Cultivo
Soja - Plantio direto
Solos - Disponibilidade de micronutrientes
Calagem
Soybean - Cultivation
Soybean - Direct planting
Soils - Micronutrient availability
Liming
Data do documento: Jan-2017
Editor: Editora da Universidade Estadual de Maringá
Citação: MOREIRA, S. G. et al. Effect of liming on micronutrient availability to soybean grown in soil under different lengths of time under no tillage. Acta Scientiarum. Agronomy, Maringá, v. 39, n. 1, p. 89-97, jan./mar. 2017.
Resumo: The effect of liming on the availability of micronutrients to soybean cultivated during different numbers of years under no tillage (NT) was investigated. The treatments consisted of the number of years under NT (three, six, and nine years) and five rates of lime (0, 33, 67 and 100% of the amount calculated to raise soil base saturation to 70%) broadcast on soil surface plus the rate of 100% broadcast with incorporation in the 0-0.20 m layer of a clayey Red Oxisol. Soil and leaf samples were collected at two vegetative stages of the crop (vegetative V4 and blossoming R2). The soil was sampled at depths of 0-0.05, 0.05-0.10, 0.10-0.20, and 0.20-0.30 m. Surface liming had little effect on extractable soil micronutrient and nutrient concentrations in soybean leaves. In the area with three years under NT, all liming rates decreased the extractable soil Zn up to a depth of 0.20 m. Lime incorporation decreased the extractable soil Mn in the surface layer. There were no differences in the extractable soil micronutrients and nutrient concentrations in soybean leaves as a function of the number of years under NT. These data suggest that broadcasting lime at current rates on soils under NT does not necessarily lead to micronutrient deficiencies.
URI: http://repositorio.ufla.br/jspui/handle/1/29348
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