How to Top-Dress Welsh Onions Well? A Detailed Explanation of the Key Points of Top-Dressing Methods
How to top-dress Welsh onions well? Please guide and introduce top-dressing for Welsh onions: Welsh onions need staged top-dressing on the basis of a sufficient base fertilizer application. When the plants grow faster after the Start of Autumn, apply a "leaf-promoting fertilizer," applying 1500-2000 kg of decomposed farmyard manure and 20-25 kg of superphosphate per mu to promote leaf growth. After the White Dew solar term, the plants enter the...
How to top-dress Welsh onions well? Please guide and introduce
Top-dressing for Welsh onions: Welsh onions need staged top-dressing on the basis of a sufficient base fertilizer application. When the plants grow faster after the Start of Autumn, apply a "leaf-promoting fertilizer," applying 1500-2000 kg of decomposed farmyard manure and 20-25 kg of superphosphate per mu to promote leaf growth. After the White Dew solar term, the plants enter the peak growth period of the white stalk, which is the key period for forming Welsh onion yield. In combination with watering, apply a "plant-promoting fertilizer" 2 times, each time applying 15-20 kg of urea and 10-15 kg of potassium sulfate per mu. Apply the top-dressing by broadcasting it between the rows, then water after a shallow intertillage.
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