Vinícius Rigueiro Messa, Loreci Zanardini, Deonir Secco, Mayra Beatriz Semiano Castro, João Gabriel Ruppenthal, Emmanuele Albara Zago, Caroline Beal Montiel, D. Bassegio
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Influence of tillage practices and rainfall intensity on runoff and soil erosion under simulated rainfall
This study aimed to evaluate the impact of various soil preparation practices, rainfall intensities and slopes using a rainfall simulator. Three land preparation methods (mulching, terracing, and terracing + ditches), three rainfall intensities (18, 50, and 73 mm h−1), and three slopes (5, 10, and 15%) were examined to verify best practices of soil preparation. The exclusive use of straw (10 Mg ha-1) on the surface is insufficient to prevent runoff and consequently the loss of water and soil on steep terrain and subject to high-intensity rainfall. The combination of terracing + ditches proved to be effective in reducing runoff. This study has substantial implications for the control of soil erosion for the sustainable development of agriculture in subtropical conditions.
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