“Just chop into pieces prior to adding to the compost. Crushed eggshells are also valuable compost material as they inject calcium.”

Putting banana peel in compost piles will help add calcium, magnesium, sulphur, phosphates, potassium and sodium, all of which are important to the healthy growth of both flowering and fruiting plants. 

Bananas in compost also help add healthy organic material, which helps the compost retain water and make soil lighter when added to gardens.

Beyond this, banana peels will break down quickly in compost, which allows them to add these important nutrients to the compost much more quickly than some other compost materials.

Source: https://news.google.com/__i/rss/rd/articles/CBMiWmh0dHBzOi8vd3d3LmV4cHJlc3MuY28udWsvbGlmZS1zdHlsZS9nYXJkZW4vMTcxNzIxNC9mb29kLWxlZnRvdmVycy10by1uZXZlci1hZGQtdG8tY29tcG9zdNIBXmh0dHBzOi8vd3d3LmV4cHJlc3MuY28udWsvbGlmZS1zdHlsZS9nYXJkZW4vMTcxNzIxNC9mb29kLWxlZnRvdmVycy10by1uZXZlci1hZGQtdG8tY29tcG9zdC9hbXA?oc=5