My onions rot and sprout in storage before I can sell at good price. How do I store them properly on farm?
5 Answers
Store onions cured and dry in a well ventilated, shaded structure that keeps them cool and airy to reduce rotting and sprouting. Cure the bulbs after harvest by drying the necks so the outer skin sets. Store only mature, dry, undamaged bulbs; remove any soft, thick necked or diseased ones that trigger rot. Use a ventilated storage structure with raised slatted floors and side openings for cross airflow, keep depth of the heap limited, and protect from rain and direct sun. Inspect regularly and remove spoiling bulbs. Good ventilation and dryness are the key to holding onions until prices improve. Some states subsidise ventilated onion storage structures, so check locally.
Curing properly before storage made the biggest difference for me. Onions stored with green necks rotted fast. Now I dry them well first and they keep much longer.
I built a ventilated chawl type storage with side gaps for airflow and raised floor. Losses dropped a lot and I can hold stock for better rates. Keep the heap shallow.
A caution on variety: some onion varieties simply do not store well no matter what you do. The kharif crop keeps poorly compared to the late kharif and rabi crop. If you plan to hold stock, grow a variety known locally for storage life.
On the storage structure, there is often a subsidy under horticulture schemes that covers part of the cost, but the amount and rules change, so confirm with your taluka horticulture office before building. It made my structure much more affordable.