Product features:
1. High nitrogen content, urea nitrogen content between 44% and 46%, is the highest nitrogen content of solid nitrogen fertilizer.
2. Easy to dissolve in water, stable physical and chemical properties before application into the soil, relatively small moisture absorption, is a relatively stable commercial shape of rapid nitrogen fertilizer.
3. Urea is a neutral fertilizer, widely suitable for a variety of soil and a variety of crops, long-term application, will not make the soil bad, when nitrogen is absorbed, the remaining carbonic acid can still promote the other elements that are not easy to dissolve, become an effective component.
4. Compared with ammonium nitrogen fertilizer, the fertilizer efficiency is relatively slow, so urea should be applied in advance for topdressing.
5. Large granular urea is different from small and medium granular urea, which is more stable in nature, higher in strength and high in fertilizer utilization. It can be mixed with phosphate fertilizer and potassium fertilizer, suitable for soil testing formula in various regions, and can also be coated with various coating (such as sulfur coating, resin coating) for slow release fertilizer.
Scope of application:
Urea is suitable for all crops and all soils, can be used as base fertilizer and topdressing, dry paddy fields can be applied. How to use:
Large-particle fertilizer is longer, and farmers should apply it 3 to 5 days earlier than ordinary urea when using it. When large-particle urea is used as base fertilizer, it is applied before ploughing in dry land. When ploughing, urea is deeply buried in the soil, and the effect is better when used together with farm fertilizer. The paddy field can be applied with urea and farm fertilizer before arable land, and then tilled the ground, and then irrigated after 2 to 3 days, such as the paddy field has water, after applying urea, can not release water to prevent the fertilizer efficiency. When large granular urea is used as topdressing, it is best to apply it in strips or holes, and try not to scatter it. If it is not possible to apply in strips or holes, it is best to spread before and after light rain and when the soil is wet. The amount of green fertilizer should not be too much, and the amount of tillering fertilizer and ear fertilizer should be enough. Topdressing outside the root also has a certain effect on increasing production. Large particle urea should be used for foliate fertilization, and its concentration is generally 0.5-2%.