Atributos químicos do solo e produtividade de girassol e milho em função da aplicação de composto de lixo urbano
作者： Tiago Vinicios Strojaki , Vanderlei Rodrigues da Silva , André Somavilla , Clovis Orlando Da Ros , Moacir Tuzzin de Moraes
DOI: 10.1590/S1983-40632013000300002
关键词:
摘要: The use of composted urban waste as a source nutrients in agriculture is an economic alternative for discarding this material. However, due to the diversity materials that compose waste, long term studies on its effects soil chemical attributes and crop yield are necessary. This study aimed at evaluating potential compost (UWC) fertilizer sunflower maize crops, well Oxisol. A field experiment, with UWC doses 0 Mg ha -1 , 10 20 30 40 mineral fertilization according recommendation each crop, was carried out. results showed increase pH from 6 6.5, application. acidity decreased linearly 3.0 cmol c dm -3 2.4 contributing SMP index increase, what reflected cation exchange capacity. bases saturation increased 77% 85%, mainly calcium magnesium levels. resulted grain similar fertilization, being significantly higher . or above did not differ fertilization. presented replace crops.
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