The nutrient composition of UF is a solid urea-formaldehyde polymer, and the total nitrogen content is usually in
38%-40%, the sustained release period is usually 90-180 days, depending on the raw material ratio of the product.
Characteristics of urea and formaldehyde sustained-release nitrogenous fertilizer UF:
1, safety: salinity index and biurea content is very low, no burning seedlings
2. Long-term effect: one of the most long-term nitrogen sources, lasting up to 180 days
3, multi-form optional: powder, irregular particles, round particles of various sizes
4, Stability: unique release form, mainly through the decomposition of microorganisms to release nutrients, so as to promote rapid root growth
5, Synergistic: can provide both nitrogen and abundant carbon, to help increase and maintain the number of beneficial microorganisms in the soil