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Revista de la ciencia del suelo y nutrición vegetal

versión On-line ISSN 0718-2791

Resumen

RODRIGUES N, Thiago Assis  et al. Productivity of corn and beans in intercropping systems fertilized with different sewage sludge . R.C. Suelo Nutr. Veg. [online]. 2006, vol.6, n.1, pp.52-63. ISSN 0718-2791.  http://dx.doi.org/10.4067/S0718-27912006000100006.

The sewage sludge, as physical, chemical and biological conditioning of soil properties, has become important organic fertilizer. The aim of this work was to evaluate the effect of the organic fertilization with different sewage sludge on soil fertility and productivity of corn and beans in intercropping systems. The experimental design was a complete randomized blocks with three replicates. The treatments were: soil without fertilization, liming and chemical fertilization, sewage sludge, sewage sludge sanitized with nim, sewage sludge sanitized with lime, sewage sludge and ipomoea composting, sewage sludge and ipomoea composting with rock phosphate, sewage sludge with rock phosphate incorporated at soil, sewage sludge sanitized with nim and rock phosphate incorporated at soil, sewage sludge sanitized with lime and rock phosphate incorporated at soil, sewage sludge and ipomoea composting with rock phosphate incorporated at soil. The data had been submitted to the analysis of variance and test of Scott-Knott at 5% of probability. The application of sewage sludge with lime increased the alkalinity of the soil and, also, the nutrients available for the plants. However, the changes observed in the chemical characteristics of the soil with the application of the biosolid had not influenced the productivity of the cultures of corn and beans in intercropping system.

Palabras clave : Organic fertilizers; Biosolid; Urban residues recycling.

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