Urea contains a substance called biuret. If the content of biuret in the soil is too high, it will affect the germination of crop seeds and inhibit the growth of young shoots and radicles. Therefore, urea is not suitable for seed fertilizer. Can be used as a base fertilizer. Urea should be paid attention to its decomposition in the soil. It is generally about 7 days. It should be used as a top dressing, such as foliar application. Generally, it is safer to be below 3g/L. When applying urea, you should pay attention to the bag with the bag. If there is still unused urea in the bag, immediately tighten the bag to prevent it from forming into water.
Author: Liguo Jing Source: Hubei Science and Technology News
Author: Liguo Jing Source: Hubei Science and Technology News
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