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

CLC Number: 

• S143.1