The proportion of nitrogen in biuret is 46.2%, the chemical formula is H2N-CO-NH2. Urea is used as a fertilizer for grain, industrial, vegetable, and fodder crops. When used as a foliar dressing, even in increased concentration, urea absorbs well, and does not cause any burns. Since this substance has the highest percentage of nitrogen, it is considered the most cost-effective and most feasible to use.
Biuret is toxic to any plant, as it inhibits its growth. The introduction of a large amount of this substance into the soil negatively affects the crops. The concentration of biuret in urea should not exceed 1%, otherwise it will affect plants as a broad spectrum herbicide.
At a concentration of 3%, biuret is toxic to plants, therefore, its application immediately before sowing inhibits plant development. In soil, biuret is completely decomposed in 10-15 days. It is recommended to maintain this interval between the introduction of urea into the soil and sowing. With a biuret concentration of 0.8% and below, it does not have a negative effect on plant seedlings, regardless of the time of fertilization (it's possible immediately before sowing).
Different plants tolerate biuret differently. Spring wheat experiences its toxic effect at 5% concentration, and reacts negatively already at 3% concentration. Corn is extremely sensitive to biuret. When it is contained in urea at an amount of 5.3%, the stems are damaged, corn leaves curl, and yellow chlorotic spots appear between the veins, and the leaf edges crack.
In European countries, urea is used with a biuret concentration of no more than 0.8%. While the average biuret concentration in fertilizers produced by Ukrainian companies is 1.4%. PE "Zakhid" offers its customers urea produced by the "Garabogazkarbamid" plant (Turkmenistan), which contains only 0.7% of biuret. Thus, this fertilizer can be used without worrying about harming the crop.
Price - 11800 UAH per ton FCA.
For more information, please contact the managers:
Sergey - 0953957385
Urea is the second-most concentrated nitrogen-containing fertilizer after anhydrous ammonia. In the process of fertilizer production, the substance known as biuret is formed out of urea.
Starting from June 2020, a new packaging machine has been put into operation for bulk goods such as fertilizers and other types of chemical products.
In June 2018, the urea plant in Garabogaz, Turkmenistan, was put into operation with an annual production capacity of 1,155,000 tons of products. Upon completion, the $1.35 billion plant became the largest urea plant in Turkmenistan.