Double transplanting
This technology was evolved
in eastern India especially in Bihar, West Bengal, Odisha, and then spread
gradually to the eastern UP. Double transplanting is an indigenous crop
cultivation system in rice where farmers transplant the seedlings twice during
the season. In the double transplanting method, farmers usually broadcast less
quantity of seeds (6-8 kg/ ha) in puddled fields during the middle
of May using available surface or groundwater. After 25 days, the seedlings are
transplanted in another small field where the seedlings are grown for 20 days. When
the seedlings reach the age of about 50-55 days, they are again transplanted in
the main fields. This method enhances the resilience of rice agro-ecosystems.
Rice crop grown using this technique can withstand extended dry spells and
prolonged water inundation in the low-lying fields. In comparison to puddled
transplanted rice, this method delivers about 10-25% higher grain yield.