作者: Moacir Tuzzin de Moraes , Vanderlei Rodrigues da Silva , Maurício Roberto Cherubin , Reimar Carlesso , Henrique Debiasi
DOI: 10.1590/S0100-06832014000400028
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摘要: The use of urban waste compost as nutrient source in agriculture has been a subject investigation Brazil and elsewhere, although the effects on soil physical chemical properties processes are still poorly known. aim this study was to evaluate effect application mineral fertilizer aggregate stability organic carbon total nitrogen content Rhodic Hapludox under no-tillage northwestern region Rio Grande do Sul, Brazil, 2009/2010 2010/2011 growing seasons. experiment arranged 2 × 6 (seasons fertilization) factorial randomized complete block design with four replications. factor time consisted two seasons (sunflower 2009/10 maize 2010/11) fertilization five rates (0, 25, 50, 75 100 m3 ha-1), fertilizer. Soil samples were collected from 0.0-0.10 m layer determine (mean weight geometric diameter), (SOC) (TN). Rates up ha-1 compost, after years sunflower, improved aggregation compared Hapludox. After second crop, SOC TN contents increased linearly levels compost.