NOTA
Efeitos de fontes e doses de fósforo sobre área foliar e produção de grãos de soja1
Effects of source and levels of phosphorus on the leaf area and production of soybeans
Sandra S. Sevá Nogueira; Ondino C. Bataglia2; Hipólito A. A. Mascarenhas2
SUMMARY
An experiment to study the second year, residual effect of different sources of phosphorus on the production of soybeans (Glycine max (L.) Merrill) in Dark Red Latosol sandy phase was installed in 1976. The sources were: Araxa (a natural phosphate), Hyperphosphate, Thermophosphate and Triple phosphate. The levels used were 100, 200 and 400 kgha of P205 respectively. The experiment was a factorial 4x3 with three replications. At the ninety day period the area of individual leaves of two plants per treatment was measured. The measurement showed that there was no difference in the LAI among sources but in the seed production hyperphosphate was superior to termophosphate. Independent of sources the leaf area and seed production was greater at the 400 kg/ha level than at 100 or 200 kg/ha of P205 applied
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Recebido para publicação em 15 de dezembro de 1976
Datas de Publicação
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Publicação nesta coleção
17 Dez 2007 -
Data do Fascículo
1977