ABSTRACT The adoption of conservation agriculture (CA) practices are essential for soil and water conservation. In CA, farmers must adopt no-tillage (NT) with crop rotation to maintain a permanent soil cover. In Brazil, mainly in the South region, for CA to be more efficient, practices such as contour farming and agricultural terraces should also be adopted. Thus, the objective of this study is to determine the extent to which NT has been adopted with crop rotation and others soil and water conservation practices. Data from the Agricultural Census in Paraná State, southern Brazil, were used. For the data analysis, the relationship between the level of adoption of NT and the use of crop rotation, contour farming and agricultural terraces was analyzed. A factor and cluster analysis were performed to distinguish regions in terms of soil and water conservation practices. The results show good overall soil and water conservation practices, although heterogeneity has been observed in the adoption practices between regions. Adoption of NT is high in almost all the studied regions. The conservation practice most widely used with NT is contour farming, whereas the least used is agricultural terraces. Conservation practices for runoff control are being neglected by farmers.

中文翻译：

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巴西南部采用的保护性农业做法

摘要 采用保护性农业 (CA) 实践对于水土保持至关重要。在加利福尼亚州，农民必须采用免耕（NT）和轮作方式来保持永久的土壤覆盖。在巴西，主要是在南部地区，为了提高 CA 的效率，还应采用等高线耕作和农业梯田等做法。因此，本研究的目的是确定 NT 在轮作和其他水土保持实践中的应用程度。使用了巴西南部巴拉那州农业普查的数据。对于数据分析，分析了 NT 的采用水平与轮作、等高农业和农业梯田的使用之间的关系。进行了因子和聚类分析，以根据水土保持实践区分区域。结果显示了良好的整体水土保持实践，尽管在区域之间的采用实践中观察到了异质性。几乎所有研究区域中 NT 的采用率都很高。NT 最广泛使用的保护措施是等高线耕作，而最少使用的是农业梯田。农民忽视了径流控制的保护措施。而最少使用的是农业梯田。农民忽视了径流控制的保护措施。而最少使用的是农业梯田。农民忽视了径流控制的保护措施。