One of the most common reasons for low onion yields is improper use of fertilizers.
Anastasia Kovrizhnykh, an expert of the online publication Belnovosti, agronomist and landscape designer, tells us what you shouldn’t feed onions with.
What fertilizers are harmful to onions
Firstly, you cannot overfeed onions with fertilizers with a high nitrogen content.
Excess nitrogen causes a deficiency of phosphorus, potassium, zinc, magnesium, boron and other microelements.
By mid-to-late July, the application of nitrogen fertilizers should be stopped.
Onions also do not like fertilizers containing chlorine (potassium chloride, etc.) and soil acidifying fertilizers.
Expert: Anastasia Kovrizhnykh
