Use urea to prevent misunderstanding

Misunderstanding 1, urea and ammonium bicarbonate mix. As urea is applied to the soil, it must be converted into ammonia before it can be absorbed by crops, and its conversion rate is much slower under alkaline regulations than under acidic conditions. If farmers apply mixed ammonium bicarbonate and urea, the rate of conversion of urea to ammonia will be greatly slowed down and urea will be lost.

Misunderstanding two, surface measures. Most of the nitrogen is easily volatilized during the ammoxidation process. If applied in alkaline soils and organic soils, the loss of nitrogen is faster and more.

Misunderstanding 3, urea as a fertilizer. Urea produces a small amount of biuret in the production process, and biuret content of more than 2% can cause poisoning to seeds and seedlings.

Misunderstanding four, immediately after the application of urea irrigation or drainage. If urea is applied immediately after irrigation or drainage, urea will dissolve in water and be lost.

Misunderstanding 5: Mixed application of urea and alkaline fertilizers. After urea is applied, it must be converted into ammonia nitrogen before it can be utilized. Under the alkaline conditions, ammonia nitrogen will evaporate into ammonia gas.

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