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Transition Metal Rates in Latosol Twice Treated With Sewage Sludge

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Academic year: 2019

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Table 1 - Averages of chemical characteristics of sewage sludge used in the experiment, associated to soil fertility  (†)
Table 3 - Chemical characteristics of soil used in experiments.  Soil  (0-20 cm) pH CaCl 2 P S N  C  Ca  Mg  K H + +Al 3+  (†) CEC (‡) SB C:N V% ←mg dm -3 → ← g kg -1 → ←     cmol c  kg -1      → dDRL 5.0  1.8 6.6 0.6  7.6  3.58  0.88 0.08 3.42 7.
Figure 1 - Cation Exchange Capacity (CEC) of the soil during agricultural years 2000-2001 and 2001- 2001-2002, Harvests 1 (a) - conventional or Summer harvest, 2 (b) - Winter harvest; 3 (c) -  conventional or Summer harvest and 4 (d) - Winter harvest, due
Table 4 - Mean rates of Fe and Mn, extracted by DTPA-TEA, obtained from analytic result averages of 5 samples  from soil collected during periods 0, 30, 60, 90 and 120 days of biosolid incorporation, by increasing doses of  sewage sludge
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