How long after applying compound fertilizer can you water? There's a right way to time watering
After applying compound fertilizer, it is recommended to water once every other day, which can prevent fertilizer burn on the plant roots. If the soil is too dry, it is recommended to water first and then fertilize. When fertilizing plants, pay attention to the choice of fertilizer; plants have different fertilizer needs at different stages. You should also control the fertilizer concentration well, and avoid applying too much or too strong a fertilizer. Once plants enter the dormant period, fertilization should be stopped.
In dry conditions, you can water first and then fertilize. It is not recommended to flood-irrigate immediately after fertilizing; doing the same thing a day later is likewise unfavorable for improving the utilization rate of the fertilizer nutrients.
The matter of fertilizer burn on seedlings is related to the characteristics of the fertilizer, the condition of the seedlings, and the position of fertilization. It is not a question of whether or not to water the fertilizer.
If you are using a potassium sulfate type fertilizer, especially a low-nitrogen, dechlorinated potassium sulfate type compound fertilizer. Some may themselves be strongly acidic; watering immediately may cause the free acid in the fertilizer to move rapidly and in large amounts to the vicinity of the root system and burn the seedlings. After application, letting the fertilizer and soil settle and react for a while may be beneficial for alleviating this kind of phenomenon.