Compost amendment enhances the biological properties of Andosols and improves phosphorus utilization from added rock phosphate

Autor: Toshinori Nagaoka, Kenji Kouno, Achala Wickramatilake
Rok vydání: 2010
Předmět:
Zdroj: Soil Science and Plant Nutrition. 56:607-616
ISSN: 1747-0765
0038-0768
Popis: The aim of the present study was to investigate the relationship between the uptake of phosphorus (P) from rock phosphate (RP) by plants and the enhancement of the biological properties of the soil by compost amendments. In experiments conducted in Wagner’s pots (200 cm2), the enrichment of Andosols with RP at 0, 100, or 200 mg P kg−1 soil was combined with the addition of one of four types of compost at a rate equivalent to 13.3 mg P kg−1 soil or with no compost treatment, and the amended soils were used to grow African millet (Eleusine coracana Gaertn, cv. Yukijirushi) for 60 days. The composts added to the soil were based on poultry manure (PM), cattle manure (CM), sewage sludge (SS), or P-adjusted sawdust (PSD). In an incubation experiment, RP was added at 0 or 150 mg P kg−1 of soil in combination with each of the four types of compost at the same rate of application as in the pot experiment, or with no compost. The uptake of P from RP (RP-P) by plants was highest with PM, followed by CM and ...
Databáze: OpenAIRE