The change of the weed biodiversity in wheat field under a long-term located fertilization

The change of the weed biodiversity in wheat field under a long-term located fertilization was studied.The results show that under different fertilization treatments,the species and relative abundance of weeds are changed,the diversity indices of Shannon's H,Shannon's E and Margalef's D_MG are different.It is due to the different amounts of available soil nutrients which maybe have different impacts on the growth of different weeds.