DAP fertilizer is an excellent source of phosphate (P) and nitrogen (N) nutrition for plants. It is highly soluble and dissolves quickly in soil to release phosphate and ammonium available to plants.
As ammonium is released from dissolving DAP granules, it is harmful to seedlings and plant roots at close range. This potential damage is more common when the soil pH is greater than 7. To avoid seedling damage, DAP fertilizer should be taken away from plants.
15-30 days depend on quantity after receive L/C , prepayment,or others.