Sulfur coated urea (SCU) is made of large granule urea, which is first sulfur-coated and then sealed with paraffin. The fertilizer after the coating is not easy to leash, while the sulfur used in the coating is gradually oxidized into sulfuric acid under the action of soil microorganisms for the absorption and utilization of crops. After the coating is disintegrated, nitrogen nutrients are gradually released to be absorbed and utilized by plants.
SCU content data:
Total Nitrogen (N): 34.00%min
Urea Nitrogen: 34.00%min
Sulfur (S): 15.00%min
Buiret: 1.5%max
Moisture: 1.0%max
Size (1.00-4.75mm or 3.35-5.60mm)： 90% Min
Standard:according to destination port policy
|
Release Rate |
|
|
Initial release rate |
15% |
|
Accumulated nutrient release rate-56 days |
72% |
|
Accumulated nutrient release rate-60 days |
74% |
|
Accumulated nutrient release rate-70 days |
75% |
|
Accumulated nutrient release rate-90 days |
80% |
Advantage:
● Small solubility, easy to absorb, sufficient nutrients, high fertilizer utilization rate
● Various release modes, good fertilizer effect, nitrogen and sulfur mutual promotion, increase production and income
● low salt index, not easy to produce the phenomenon of burning seedlings
● Less quantity and times of fertilization, save time, labor and effort, and reduce comprehensive cost
APPLICATION:
1.Crops in neutral or slightly alkaline soils -- garden plant crops, other crops.
2.Absorption of sulfur nutrition better crops -- green onion, cabbage, peanuts, forage grass, etc.
3.Crops with longer growing period -- sugar cane, trees, etc.
4.Growth period is very long time just a lot of nitrogen absorption crops -- tea, afforestation.
5.The best harvest is green crops -- cucumbers, green peppers, etc.
6.Unique smell of crops -- garlic, onion, ginger, leek and so on.
7.Soil by neutral change to acid when easy to be attacked by bacteria crops -- potato and so on
8.Crops to be fertilized less frequently -- field crops such as rice, wheat, corn, soybean, cotton, etc.
Fertilization method:
It can be used alone or in combination with phosphorus, potash, compound, special fertilizer and organic fertilizer as base fertilizer.
It can be used for long cycle crops as top dressing, such as sugarcane, banana trees, etc., which is earlier than ordinary top dressing time and can reduce the number of top dressing.
Storage:
Sulfur coated urea should keep in cool and dry place, far away from heat & sunlight.
Protect the materials from the sun or rain during transportation.
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