摘要： 以美国佐治亚州广为分布的红壤和沙质灰土以及棉花和玉米为试验材料,进行Aspartame生产废液(BST,下同)与传统氮肥尿素、硫酸铵的温室盆栽和恒温土培对比试验.结果表明,BST是很好的氮肥资源,等同于或某种程度上优于尿素和硫酸铵.对土壤的理化性质、氨态氮、硝态氮含量以及对作物吸收Ca,Mg,K等养分和生长发育的影响与常规氮肥相似.但废液中有机态氮的水解以及向硝态氮的转化比尿素要快一些.尿素和BST比硫酸铵更适于在红壤和沙质灰土上施用.
关键词:
工业副产品,
氮肥资源,
土培,
评估
Abstract: Greenhouse and soil incubation experiments were carried out for contrast experiments of Aspartame by-products and Urea, sulphuric acid ammonia with the red soil and the gray soil, which are abundant in Georgia US, corn and cotton.The results show that the BST is a nice nitrogenous fertilizer resources and to some extents, equal and superior to traditional nit rogenous fertilizer urea and sulphuric acid ammonia.It is very similar to traditional N fertilizers used of ten to physical and chemical quality of soil, ammonium, nitrate and to the nutrients absorption of crop such as Ca, Mg and K etc as w ell as crop growing.But the hydrolysis of organic form nitrogen as well as change of ammonium into nitrate in the waste liquid is quicker than the urea.Urea and BST are more suitable for use than sulphuric acid ammonia on this two kinds of soils.
Key words:
Industry by-products,
Nitrogenous fertilizer resources,
Soilincubation,
Evaluation
中图分类号:
王海啸, MalcolmE.Sumner. Aspartame生产废液作为农业氮肥资源的评估研究[J]. 华北农学报, 2002, 17(4): 88-92. doi: 10.3321/j.issn:1000-7091.2002.04.019.
WANG Hai-xiao, Malcolm E.Sumner. Evaluation of Aspartame Byproducts As Potential Nitrogen Sources for Crops[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2002, 17(4): 88-92. doi: 10.3321/j.issn:1000-7091.2002.04.019.