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This study aimed to evaluate the extractable phosphorus Mehlich-1 in a distrophic Red-Yellow Latosol (Oxisol) which received alkaline sewage sludge (alkaline biosolid) along with 0, 0.436, 0.872 and 1.745 dag kg-1 of P from three different sources and cultivated with common bean (Phaseolus vulgaris cv. IPR Uirapuru) in greenhouse. It also aimed to quantify the phosphorus uptake by the plant, plant production and the relative agronomic effectiveness index. For the establishment of the treatment the recommended dose was 45.85 kg ha-1 of P from the treatments, except the control (0 dag kg-1 of P). This dose was calculated for 2.5 kg of this Oxisol from Contenda, Paraná State, Brazil, contained in recepients of 3 dm3 with 6 cultivated bean plants (cv. IPR Uirapuru). Phosphorus added in alkaline biosolid increased the extractable phosphorus (Mehlich-1) in soil and phosphorus accumulated in plants as well as the grain and total dry mass production of bean plants. The best level of phosphorus added to alkaline biosolid was 0.436 dag kg-1 of P from the partially acidulated phosphate rock Alvorada and single superphosphate. Propôs-se, com este trabalho, avaliar o fósforo extraível Mehlich-1 em um Latossolo Vermelho-Amarelo Distrófico típico, ácido, que recebeu lodo de esgoto alcalinizado (biossólido alcalinizado) adicionado com 0, 0,436, 0,872 e 1,745 dag kg-1 de P proveniente de três diferentes fontes e cultivado com feijoeiro (Phaseolus vulgaris cv. IPR Uirapuru) em casa de vegetação. Objetivou-se, também, quantificar o fósforo acumulado pelas plantas, a produção das plantas e o índice de eficiência agronômica relativa. Para o estabelecimento de tratamentos a dose recomendada foi de 45,85 kg ha-1 de P a partir dos tratamentos, exceto da testemunha (0 dag kg-1 de P). Esta dose de fósforo foi calculada para 2,5 kg deste Latossolo de Contenda, Paraná, contidos em vasos de 3 dm3 cultivados com 6 plantas de feijoeiro (cv. IPR Uirapuru). O fósforo adicionado em biossólido alcalinizado aumentou o fósforo extraível Mehlich-1 do solo, a acumulação de fósforo pelas plantas bem como a produção de grãos e a massa seca total das plantas de feijoeiro. O melhor nível de fósforo adicionado ao biossólido alcalinizado foi de 0,436 dag kg-1 de P proveniente de fosfato natural parcialmente acidulado Alvorada e superfosfato simples

Phosphorus behavior on an Oxisol fertilized by phosphate alkaline biosolid and cultivated with common bean