Two kinds of fertilizers, ground fertilizer and stone spear controlled release fertilizer, can be bought on a certain software. According to relevant information, two kinds of fertilizers, Diyi Fertilizer and Shimao Controlled Release Fertilizer, can be searched on some shopping platforms such as a treasure, a cat and a certain east, and buyers can buy them according to their own needs. Shi Mao, founded in 2007, is a leading manufacturer of polyurethane controlled-release fertilizers, and a national high-tech enterprise specializing in the research, development, production and sales of new fertilizers such as controlled-release fertilizers, high-concentration liquid fertilizers, functional fertilizers and basic slow-release trace element fertilizers.