Species seed body of field crop seed and preparation method thereof

The invention relates to a species seed body of a field crop seed. The species seed body comprises a seed, as well as a shell, a fertilizer, a filling material and rough straw paper, wherein the seed accounts for 0.01-4wt% of the species seed body, the shell accounts for 22-32wt% of the species seed body, the fertilizer accounts for 8-60wt% of the species seed body, the filling material accounts for 10-19wt% of the species seed body, and the balance is rough straw paper. The species seed body and the preparation method have the characteristics that the cultivation process of crops is simplified, the application positions of chemical fertilizers and pesticides are accurate and concentrated, fertilization is not needed during the whole growth period of crops, technology upgrading can be carried out, and the like, and the species seed body is particularly suitable for field crops.