1. DAP is applied with water. After the application of diammonium phosphate with water, it is easy to cause the loss of nitrogen volatilization. Phosphorus only stays on the surface and is not easily sent to the root of the crop.
　　 2 , the surface of the ammonium bicarbonate shallow application, the soil is not tight, resulting in low fertilizer utilization.
　　 3 , urea topsoil is rushed to water after spraying, even using large water flooding to cause urea loss.
　　 4 , superphosphate directly seeded. Superphosphate contains 3.5%-5% free acid, which is highly corrosive. If it is directly mixed with superphosphate, it can easily corrode the seeds and reduce the germination rate and emergence rate of seeds.
Ball Valve Fittings- Greaser, Injector, Check, Vent, Drain, Plug, Tap
RSF VALVE's Ball Valve Parts include finish-machining forged steel ball valve bodies, closures (cover, bonnet), trunnion , shaft, support plate , ball valve seat ring, gland , adapter, and fittings (drain, vent, plug, tapon, greaser, injector, Check Valve). Main material includes ASTM A105, ASTM LF2, AISI/SAE4130/4140, ASTM A 182 F 316(L), F304(L),17-4PH(UNS S 17400), F44, F51,F53,F55,410,F6A, A694 F60 etc. As well as forging worshop, heattreatment workshop, we have our own welding workshop which enable us to provide cladding of valve bore to our customer, our WPS and PQR have been certified by TUV.
Ball Valve Fittings- Greaser, Injector, Check, Vent, Drain, Plug, Tap
SUZHOU RSF VALVE CO.,LTD , https://www.rsf-valve.com