1. Long Term Effect:
Mixing with humic acid, the black urea will not easy to leaching and losing. The effect duration is much longer than normal white urea.
2. Slow Release and Improve Nitrogen Utilization:
Reduce the loss and fixation of nitrogen, Improve utilization of nitrogen.
Retains Nitrogen and nutrients in the root zones and releases them properly to plants when required.
3. Improve Soil Fertility And Buffering Properties:
Effectively prevent soil caking. Increase microbial activity and exchange capacity of the soil.
Particularly suitable for high rainfall areas, irrigated production systems or dry land production systems etc. Especially be suitable for field crops.
4. Reducing Farm Inputs& Increasing Production:
It can reduce fertilizer application rates by 15-35% and increase yield by 10%-30%.