Can Liquid Nitrogen Fertilizer Replace Urea? A Clear Comparison of Fertilizer Efficiency
Liquid nitrogen fertilizer is liquid ammonia obtained by pressurizing or cooling gaseous ammonia, and it is widely used as agricultural fertilizer, so can liquid nitrogen fertilizer replace urea?
1. Can liquid nitrogen fertilizer replace urea?
Liquid nitrogen fertilizer can replace urea, and it can quickly supplement nitrogen. At the same time, foliar spraying replaces broadcasting, saving time and labor and taking effect quickly. Generally, crops can fully absorb it 24-48 hours after spraying, it can reach all crop tissues within 6-8 hours, and its lasting period is 50-60 days. It can effectively promote crop growth and increase yield!
2. Which is better, liquid nitrogen fertilizer or urea?
Liquid nitrogen fertilizer usually refers to ammonia water. As agricultural fertilizer, ammonia water has many shortcomings, so in rural areas, very few farmers use ammonia water, and in relatively remote areas, no one uses ammonia water liquid fertilizer at all. Ammonia water has a low nitrogen content and volatilizes easily. The volatile vapor is very harmful to crops. When it is diluted with water and released for use, it is very easy to be lost, and transportation is relatively difficult and highly challenging. It is not as convenient to use as solid fertilizer.
Urea is an amide nitrogen fertilizer, a solid fertilizer, easily soluble in water, non-volatile, and relatively safe for crops when used. Urea has a higher nitrogen content than ammonia water. In soil, the ability of soil to adsorb urea is stronger than that of ammonia water, and the amount lost is less than that of ammonia water. Urea must undergo a biochemical process stage in the soil for a period of time, converting urea into ammonium nitrogen, before it can be absorbed and used by plant roots. This conversion process changes with soil temperature; the higher the temperature, the shorter the conversion time.
In short, liquid nitrogen fertilizer and urea are two fertilizers in different forms, each with its own advantages and shortcomings. Overall, when compared by use effect and chemical properties, urea is superior to liquid nitrogen fertilizer.