1. Used as base fertilizer. After ammonium chloride is used as the basal fertilizer, it should be watered in time to leach the chloride ions in the fertilizer to the lower layer of the soil to reduce the adverse effects on the crop.

2. Used as top dressing. In practice, ammonium chloride is most suitable for top dressing of rice. It is better than ammonium sulfate, and the amount per acre is generally about 10 to 17.5 kilograms. However, when ammonium chloride is used as a top dressing, it is necessary to grasp the principle of a small number of times.

3. It should not be used as a seed fertilizer and a field fertilizer. Because ammonium chloride generates water-soluble chlorides in the soil, it affects seed germination and seedling growth.

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