Crops cannot be filled immediately after applying urea
Our pipe elbow is made from a variety of materials, such as alloy steel, stainless steel, etc, and the materials used depend on the function of the piping unit. It is a bent at an angle to allow straight pipes to be joint at an angle, there by realizing a change of direction. Of all pipe fittings, pipe elbow is the most widely used one, which is used in a variety of applications in industries such as electrical power, marine, heating, papermaking, metalurgy, petrochemical, chemical, oil and gas, and more.
Range : 1/2"NB TO 48"NB IN SCH: 20, 30, 40s, 80s, 10, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS available with NACE MR 01-75
Alloy Steel Pipe Fitting,Alloy Steel Fitting,Sr Elbow,Alloy Steel Seamless Elbow Fittings Shijiazhuang Bang dong Pipeline Technology Co,Ltd. , https://www.bd-pipefitting.com
As we all know, urea is a white granular crystal that is slightly hygroscopic and can be completely dissolved in water. It is a neutral fertilizer. After the application of urea, no residue remains in the soil and is called a non-component fertilizer. However, it has a prominent feature that the guanamine-containing nitrogen cannot be directly absorbed by the crop and must be converted into ammonium nitrogen by the action of microorganisms in the soil before it can be utilized. If the water is applied immediately after urea application, it will be dissolved by water. Because the adsorption between the soil colloid and urea is very weak, the fluidity of urea in the soil is very large, especially the flooding of large water, which will cause the urea to drip into the deep layer. Reduce fertilizer efficiency. Therefore, it is not advisable to fill the water immediately after applying urea. It is even more unscientific to say that the fertilizer is applied to the fertilizer before the rain.
So how do you apply urea scientifically? First of all, we must understand the weather conditions, mainly the temperature. At a temperature of 10 ° C, urea requires 7-10 days for conversion, 4-5 days at 20 ° C, and 2 days for conversion to ammonia required for crops at 30 ° C for 2 days. With this in mind, it is possible to determine the irrigation time after topdressing based on the temperature conditions. Secondly, it is necessary to understand the soil conditions. The fertile soil transforms faster than the thin soil, and the clay soil is faster than the sandy soil. After applying urea to viscous and fertile soil, it can be pre-filled with thinner and sandy soil. Once again, it should be combined with organic fertilizers, because there are many microorganisms in organic fertilizer, which can provide better conditions for urea conversion and accelerate the transformation process. Finally, the method of deep application and covering soil should be adopted, so as to avoid the direct volatilization of the exposed, and increase the chance of contact with the microorganisms in the soil, which is beneficial to the adsorption of the urea in the soil by the colloid of the soil colloid, or the ammonium bicarbonate. Provide useful nutrients to crops.
Source: Heilongjiang Science and Technology News
Form :
» Elbows in Long & Short Radius in 45 deg, 90 deg, 180 deg.
» Equal, Unequal Tee & Barred Tee.
» Eccentric Reducer & Concentric Reducer
» Caps & Crosses.
» Long & Short Stub End.
» Swage Nipple & Barrel Nipple.
Standard : ASTM / ASME A/SA 234
Grade : WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 23, WP 91
Value Added Services:
» Hot Dipped Galvanizing
» Sand Blasting