华南农业大学学报2016，Vol.37Issue(4)：25-31,7.DOI:10.7671/j.issn.1001-411X.2016.04.005
改性酱渣废油制备包膜氮肥及对玉米生长的影响
Preparation of coated nitrogen fertilizer from modified soy sauce residue oil and its influence on maize growth
摘要
Abstract
[Objective] This study aimed to achieve recycling of soy sauce residue oil, reduce its environ-mental pollution, and expand the resources of slow-release fertilizer material. [Method]Coated nitrogen fertilizer was prepared by epoxy modification of soy sauce residue oil. The structure of the coated film was analyzed by infrared spectroscopy, high-power microscope and scanning electron microscope. The fertiliz-er efficiency was examined in corn pot experiment.[Result]After epoxy modification of the soy sauce res-idue oil, its structure changed which promoted forming of film with dense net structure. In corn pot ex-periment, there were no significant differences in leaf number and chlorophyll content between the test group using coated nitrogen fertilizer ( T1 ) and the control group with normal fertilization ( CK2 ) . The fi-nal leaf area, stem girth and plant height of T1 were significantly different from those of the control group with no fertilization ( CK0 ) and the control group with only phosphorus and potassium but no nitrogen fer-tilization ( CK1 ) , and increased by 9. 5%, 4. 3% and 7. 3% at 60 days respectively compared with CK2. The corn plant fresh weight of T1 was significantly different from those of the other three groups. While the corn plant dry weight of T1 was not significantly different from that of CK2 , it significantly in-creased by 14. 2% and 5. 2% respectively compared to CK0 and CK1 . [Conclusion]Coated nitrogen fer-tilizer could promote maize growth, and is considered slow-releasing in soil.关键词
酱渣废油/改性/包膜氮肥/玉米生长/肥效Key words
soy sauce residue oil/modification/coated nitrogen fertilizer/corn growth/fertilizer efficiency分类
农业科技引用本文复制引用
景旭东,毛小云,阎杰,林海琳,梁关生,廖宗文..改性酱渣废油制备包膜氮肥及对玉米生长的影响[J].华南农业大学学报,2016,37(4):25-31,7.基金项目
广东省对外科技合作项目(2014A050503065) （2014A050503065）
广州市产学研协同创新重大专项(201508030039) （201508030039）
广东省科技计划项目(2015B020215012) （2015B020215012）
