Phosphorus status and its sorption-associated soil properties in a paddy soil as affected by organic amendments

摘要

Yet the transformation and contribution of amorphous aluminum and iron which are usually indicated as oxalate-extractable forms (Al-ox and Fe-ox) to phosphorus (P) sorption in paddy soils, under long-term organic amendments combined with alternating flooding and draining, were not fully understood. The aim of this study was to investigate the effects of organic amendments on P status and P sorption-associated attributes including Al-ox and Fe-ox in a paddy soil.