Research Article
Biosolids Application on Banana Production: Soil Chemical Properties and Plant Nutrition
Table 3
Chemical analysis of biosolids used in the experiment (average results).
| Variable | Unity | Value |
| Phosphorus (P) | g kg−1* | 15.4 | Potassium (K) | g kg−1* | 0.9 | Sodium (Na) | g kg−1* | 0.6 | Arsenium (As) | mg kg−1* | <0.1 | Cadmium (Cd) | mg kg−1* | 10.3 | Lead (Pb) | mg kg−1* | 83.6 | Copper (Cu) | mg kg−1* | 139.6 | Chromium (Cr) | mg kg−1* | 43.8 | Mercury (Hg) | mg kg−1* | <0.1 | Molybdenum (Mo) | mg kg−1* | <0.1 | Nickel (Ni) | mg kg−1* | 22.2 | Selenium (Se) | mg kg−1* | <0.1 | Zinc (Zn) | mg kg−1* | 573.4 | Boron (B) | mg kg−1* | 22.9 | Carbon (organic) | g kg−1* | 222.7 | pH | | 9.9 | Humidity | % | 71.2 | Volatile solids | %* | 52.5 | Total N (Kjeldahl) | g kg−1* | 32.0 | NH4-N | mg kg−1** | 558 | NO3-N + NO2-N- | mg kg−1** | 13.6 | Sulfur | g kg−1* | 7.7 | Manganese | mg kg−1* | 778 | Iron | g kg−1* | 106 | Magnesium | g kg−1* | 5.9 | Aluminum | g kg−1* | 7.0 | Calcium | g kg−1* | 174 | Available N*** | g kg−1** | 2.96 |
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*Total concentrations in a dry matter basis; **original residue element concentrations; ***available N calculated according to Bovi et al. [5].
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