An ideal application method that avoids separate application is to apply organic fertilizer first, and then apply urea, superphosphate, and potassium chloride to a reasonable formulation.
The second bogey and ammonium bicarbonate mixed urea applied to the soil, to be converted into ammonia can be absorbed by the crop, and its conversion rate under alkaline conditions is much slower than in acidic conditions. After ammonium bicarbonate was applied to the soil, the reaction was alkaline and the pH was 8.2-8.4. The combination of ammonium bicarbonate and urea will greatly slow down the conversion of urea to ammonia, which can easily lead to the loss of pyrolysin and loss of volatiles. Therefore, urea and ammonium bicarbonate should not be mixed or applied simultaneously.
The third bogey spreads urea on the ground and spreads it to the surface. It takes 4 to 5 days of conversion to be absorbed by crops at room temperature. Most of the nitrogen is volatilized during the ammoxidation process. The utilization rate is only about 30% if alkali is used. Soils with high levels of soil and organic matter will lose more nitrogen. Therefore, nitrogen cannot be applied on the surface.
Four bogey application of urea immediately after irrigation urea is an amine nitrogen fertilizer, must be converted into ammonia nitrogen after application can be absorbed by the crop. In the conversion process, due to different conditions such as soil quality, moisture, and temperature, the time is usually short and it usually takes 2 to 10 days to complete. If urea is applied immediately after irrigation or dry land is applied before heavy rain, urea will be lost immediately.
Author: Guo Ying
Impeller normally applied in the centrifugal pumps.
Impeller is a rotating component equipped in the Pump Housing, help to transfer to energy from the motor that drives the pump to the fluid being pumped by accelerating the fluid outwards from the center of rotation.
QFAP supply various kinds of impellers to all over the world, main of our customers are from Europe, North America, Japan and Southeast of Asia.
Materials: grey Iron, ductile iron, steel castings, aluminum die castings, etc.
Surface treatment: painting, zinc plating, passivation, nickel plating, anodizing, polishing, etc.
Heat treatment: according to customer`s requirement.
QFAP have specialized in producing high precision Agriculture Parts more than 10years, Because of the long term cooperation, we could supply our customers not only the products but also our recommendation on the designs to saving costs.
Impeller
Boat Impeller,Fan Impeller,Oil Pump Impeller,Blower Impeller
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