Through the interpretation of soil attributes it is possible to characterize the changes resulting from the adoption of different managements. The use of sustainable and conservationist production systems, such as the use of cover crops, has contributed to the improvement of the physical, chemical and biological attributes of the soil. This study aimed to analyze the effects of cover plants of the brachiaria (Urochloa ruziziensis), forage turnip (Raphanus sativus), crotalaria (Crotalaria juncea), millet (Pennisetum glaucum) versus mechanized operation with scarifier without soil cover on the attributes soil physicists with a history of five primary periodic soil preparation systems, used since 2014: P1-plowing harrow; P2-disc plow; P3-rotary hoe; P4-no-till; P4-scarifier. In the layers from 0.10 m to 0.20 m and from 0.20 m to 0.30 m, where soil compaction was found, the cover plants reduced on average 37.2% and 47.2% of the RMSP, respectively. In general, forage turnip was the species that stood out the most in improving soil density.
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