| Popis: |
Poultry litter is a useful agricultural by-product but its potential for environmental pollution requires clarification. A poultry litter from north Georgia containing 1196, 944, and 631 mg/kg Cu, Mn, and Zn respectively was used to study the bioavailability or these metals in a short-term greenhouse pot experiment. Metal uptake from poultry litter applications equivalent to 0, 15, 30, and 60 Mg/ha were compared on pure quartz sand and Cecil (clayey, kaolinitic, thermic Typic Kanhapludult) and Lakeland (thermic, coated Typic Quartzipsamment) soils at soil pH regimes of ≅ 5 and 7. Sudax [Sorghum bicolor (L.) Moench)] was used as test crop for metal uptake from 1 kg of soil during a 21-d growth period (.) |
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