New Role of Sulfuric Acid In Production of Multicomponent Fertilizers From Renewable Sources | Science Publications

American Journal of Agricultural and Biological Sciences

Izabela Michalak¹  Katarzyna Chojnacka¹  Henryk Gorecki¹  Agnieszka Zielińska¹  Marzanna Barańska¹  Helena Gorecka¹ 

关键词: sulfuric acid;    renewable sources;    slaughter wastes;    poultry feather;    animal bones;    wood ash;    NPK fertilizers;   

DOI  :  10.3844/ajabssp.2007.241.247

学科分类：农业科学（综合）

来源: Science Publications

【 摘 要 】

The paper discusses the possibility of using renewable sources: slaughter wastes and wood ashes in the production of NPK fertilizers. The content of macronutrients, micronutrients and toxic elements in these materials was reported. In the present work, poultry feathers were used as fertilizer source of nitrogen, animal bones as the source of phosphorus and wood ash as the source of potassium and micronutrients. Bioavailability of fertilization components was increased by mineralization with sulfuric acid, which transformed keratinous nitrogen of poultry feathers into ammonia nitrogen, hydroxyapatite phosphorus to bioavailable orthophosphate. Also, mineralization of organic content of the materials was achieved. The method of production and the composition of NPKS fertilizer, the content of which was adjusted to the requirements of oil seed rape was provided. The fertilization properties were checked in germination tests.

【 授权许可】

Unknown