Urea has high nitrogen content, long fertility and convenient application, which is very popular among farmers. To fully play the role of urea, pay attention to the following three points in use:
First, it can't be applied on the surface: urea is applied to the surface, and it takes 4-5 days to transform at room temperature to be absorbed by the crop. Most of the nitrogen is volatilized during the ammoniation process, and the utilization rate is only about 30%. Therefore, fertilization cannot be applied on the surface.
The second is to avoid the use of fertilizer: when using urea as a seed fertilizer, a small amount of biuret is often produced during the conversion process. If the biuret content exceeds 2%, it will poison the seedlings and seeds.
Third, it can not be mixed with alkaline fertilizer: after the urea is applied, it must be converted into ammonia nitrogen to be used by the crop. Under alkaline conditions, most of the nitrogen in the ammonia nitrogen will become ammonia gas, so Urea cannot be mixed or applied simultaneously with alkaline fertilizers such as plant ash, calcium magnesium phosphate, and ammonium bicarbonate.
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Connecting Link
Product Name:Connecting Link
Key words:S connecting link,Power S connecting chain,S connecting link for galv
Application: Used for connecting
Technical parameters
Description: S Connecting link
Size:38x38x6,φ6,38x68x6,R13
Part No.: Q.Q.Q.8211006
Material elongation:Q345,Q235
Finished: Galvanized,HDG,Plain,Painting,Dacromet,Electrogalvanizing,Oiled,Phosphorization,etc
Place of origina:China
HS Code:730820
Trademark:ZBRF
Color:Customized
Part:Power,Galv
Transport Package:Plastic Bag or Gunny bag and Wooden Case
Port of shipment:Shanghai Port,Taicang Port
Certification:CE,SGS,A.S
Load≥1.5KN
Service load≤1KN
Safety factor:1.5
Connecting Link,S Connecting Link,Power S Connecting Chain,S Connecting Link For Galv
TAICANG ZHONGBO RAILWAY FASTENING CO., LTD. , https://www.railfastener.com