Compound fertilizer or urea, diammonium are all acceptable

Yes

Some netizens say that this brand of diammonium is fake. In 2004, Cargill crops in the United States The Nutrition Department (i.e. Fertilizer Department) merged with the American IMC Company to form Mosaic Fertilizer (Mosaic, stock code MOS), and the Cargill trademark will no longer be used on fertilizers. The original Cargill diammonium was also renamed Mosaic diammonium accordingly.

It is also said that domestic fertilizers are trademarked by others.

It is recommended to purchase chemical fertilizers from regular manufacturers.

If you or your fellow villagers have used this kind of fertilizer, you can also use it. If you have not used it before, it is recommended to purchase fertilizer from a regular manufacturer

Yes