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IRON OXIDES AND QUALITY OF ORGANIC MATTER IN SUGARCANE HARVESTING SYSTEMS

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Table 1. Characterization, mean, maximum and minimum values; and coefficient of variation properties of chemical, grain size and physical of the soils in the two zones under study
Figure 1. Diffractogram of iron oxide concentrated in the clay fraction of Latosols. (a) Mechanical harvesting; (b) Manual harvesting.
Table 2. Mean, maximum and minimum values, and coefficients of variation, of the chemical and mineralogical properties in the 0.00-0.25 m layer of the soils under the two harvesting systems
Figure 2. Variance in the body of properties explained by each principal component and contribution of soil chemistry, particle size distribution, soil physical and soil mineralogical properties to PC1.
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