Urea has a high nitrogen content, long fertility and easy application, and it is well received by farmers. To make full use of the role of urea, attention should be paid to the following matters in use: Cannot be applied on the surface: Urea is applied on the surface, and it must be converted by crops after 4-5 days at room temperature. Most of the nitrogen is in the ammoniation process. Volatilized, the utilization rate is only about 30%. Therefore, fertilization cannot be applied on the surface. Don't do seed fertilizer: When using urea as a seed fertilizer, it often produces a small amount of biuret during the transformation process. Biuret levels above 2% can poison seedlings and seeds. Can not be mixed with alkaline fertilizer: After urea is applied, it must be converted into ammonia nitrogen before it can be used by crops. Under alkaline conditions, most of the nitrogen in ammonia nitrogen will become ammonia volatilization, so urea cannot With grass ash, calcium magnesium phosphate fertilizer, ammonium bicarbonate and other alkaline fertilizers mixed application or simultaneous application.
Every kind of toy for every kind of dog.
We have plastic toy and rubber toy. The best toy for your pets may be an activity you share together, a cuddly companion.
While some dogs love to chew, some love to chase . Of course, we also have one toy for cats, it is Tower of Tracks.
Balls spin and roll to excite kitty`s desire to play.
So, be sure to get the toy that best fits your dog's style.Pet Toys,Funny Pet Toys,Pet Pet Toys,Rubber Pet Toys
Yangzhou Huating Brush Co., Ltd. , http://www.huatingbrush.com