1. Superphosphate cannot be mixed with alkaline fertilizers such as grass ash, lime nitrogen, and lime. Because calcium superphosphate contains free acid, which is acidic, and the alkaline fertilizer contains more calcium, if the two are mixed, it will cause acid-base reactions, reduce the fertilizer efficiency, and it will cause calcium to fix phosphorus, leading to "two loses." . 2. Alkaline fertilizer such as calcium magnesium phosphate fertilizer cannot be mixed with ammonium ammonia fertilizer. Because alkaline fertilizers and ammonium ammonia fertilizers such as ammonium sulfate, ammonium bicarbonate, ammonium chloride, etc., will lead to and increase the volatilization loss of ammonia, reducing fertilizer efficiency. 3. Farmyard manure such as manure and urine can not be mixed with calcium, magnesium phosphate, grass ash, lime and other alkaline fertilizers. Because the main component of human and animal urine is nitrogen, if it is mixed with a strong alkaline fertilizer, it will neutralize and fail. 4. Fertilizer can not be mixed with rhizobia fertilizer and other bacterial fertilizers. Because chemical fertilizers have strong corrosiveness, volatility, and water absorption, if they are used in combination with bacterial fertilizers, they will kill or inhibit viable bacteria and make the fertilizer useless. 5. Ammonia cannot be mixed with human excreta, grass ash, potash, ammonium phosphate, potassium chloride, urea, and ammonium bicarbonate. Ammonium bicarbonate must not be mixed with plant ash, human waste, and potash nitrogen. Ammonium sulfate cannot be mixed with ash and ammonium bicarbonate. Ammonium nitrate cannot be mixed with grass ash, ammonia, etc. If the fertilizer mentioned above is mixed and applied, it will cause acid-base neutralization reaction and reduce the fertilizer effect. 6. Phosphate rock, bone powder and other insoluble phosphate fertilizer can not be mixed with alkaline fertilizer such as grass ash, lime ammonia, lime. Otherwise it will neutralize the organic acids in the soil, making it harder to dissolve insoluble phosphate fertilizers, and crops cannot absorb and use them.
The Spherical Bearing is used in bridge.It belongs to one of the road and Bridge Bearing.It has the following advantages:1)The bearing transfers force through the spherical surface,so no contraction of force will accur,and the reacting force on concrete is relatively even. 2)coefficient of the PTFE plate,not subject to the turning angle of the bearing,so it is especially suitable for large turning angles.The design turning angle may be 0.05rad or more.3)The turning of the bearing is consistent in all directions so it is suitable for wide and curve bridges.4)No rubber is used in the bearing so there is no problem of rubber aging affecting the bearing rotation,and it is especially suitable for cold areas.J.S.Brown also supply QZ spherical bearing.Due to high quality and reasonable price,we have exported to many countries.
Spherical Bearing Spherical Bearing,Double Row Spherical Bearing,Flexible Spherical Bearing,Roller Spherical Bearing J.S.Brown New Material Technology Co., Ltd. , https://www.profile-steel.com
