A nitrogen-calcium synergistic granular fertilizer, containing 15% dual nitrogen sources (nitrate nitrogen + ammonium nitrogen) + 26% CaO. The slow-release granular design enhances resistance to leaching. It directly targets fruit cracking and blossom-end rot caused by calcium deficiency in crops. Suitable for mango and lychee fruit setting stages, and tomato and rice transplanting stages, increasing fruit setting rate by 25% while improving acidic soils.
