1, Hongfu brand diammonium phosphate has a water-soluble phosphorus content of over 95% and a low content of harmful elements such as lead, arsenic and cadmium. At the same time, it has the advantages of promoting early maturity, lodging resistance, drought resistance, strong stress resistance and remarkable yield increase effect.

2. Anhui Liuguo Chemical Industry Co., Ltd. is a state-owned enterprise with Tongling Chemical Industry Group Co., Ltd. as the main sponsor and Tongling Tong Yuan Investment Service Co., Ltd. as the approval of Anhui Provincial People's Government, No.44 [2000] and Anhui Provincial Economic Restructuring Commission, No.96, so Liuguo Diammonium is better.