Q.Onions
What fertilizer or blend of fertilizers is needed to grow large onions. My soil is sandy with a fair amount of organic material (grass clippings and leaves) worked in.
Downtoearthdigs
Answered on September 14, 2018
Your onions do not need heavy fertilization. It is best to do half strength all-purpose fertilizer. Onions grow bigger by having more leaves. The more leaves they produced, the bigger the onions will be. If you feel you need a little boost, then go with a higher nitrogen fertilizer.
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