Question

while storing the crop what risk occurs​

Answer 1

Decaying of crops
Hope it helps

Answer 2

Answer:

The main causes of problems during storage are:

The main adversaries of successful onion and potato storage are the diseases that come from the field. The problem with this is that they often don't manifest during the harvest but multiply rapidly in the storage facility, along with all of their disastrous consequences. (read more)

Physical damage during harvest and transport to the storage facility. Damage to the bulb or tuber are like wounds that quickly become infected.

A prematurely harvested onion will sprout during storage.

If you do not apply sprout inhibitor to potatoes, they will sprout during storage.