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- [13] EFFECTS OF TRACTOR PASSES ON THE PHYSICAL-PROPERTIES OF AN OXISOL IN THE BRAZILIAN AMAZON TROPICAL AGRICULTURE, 1985, 62 (02): : 137 - 141
- [17] Distribution of phosphorus fractions in a Brazilian Oxisol under different tillage systems SOIL & TILLAGE RESEARCH, 1997, 44 (1-2): : 23 - 34
- [18] EFFECTS OF 2 LAND CLEARING METHODS ON THE PHYSICAL-PROPERTIES OF AN OXISOL IN THE BRAZILIAN AMAZON TROPICAL AGRICULTURE, 1985, 62 (03): : 207 - 212