IRRI eyes public-private sector support for wider DSR adoption
Philippine-based International Rice Research Institute (IRRI) is targeting more public-private support to address key challenges in the successful and wider adoption of Direct-Seeded Rice (DSR) systems in South and Southeast Asia.
“DSR is a more resource-efficient, climate-resilient, and sustainable alternative agricultural system to manual transplanting but gaps are still present,” said IRRI senior scientist and DSRC Coordinator Dr. Virender Kumar.
“Many agronomic DSR practices have become inefficient because of lack of mechanization, precision application, and proper education, hence the prevalent preference for manual systems,” he added.
IRRI said that DSR systems are more rapidly and easily planted, less labor intensive, consume less irrigation water, mature earlier, are more conducive to mechanization, and have fewer methane emissions.
Overall analysis of 77 published studies shows that various methods of direct seeding reduced the cost of production by US$9– to 125 hectares compared with conventional transplanting methods.
While DSR is widely practiced in many Asian countries such as Malaysia, Sri Lanka, Vietnam, Thailand, Cambodia, and the Philippines, Manual Puddled Transplanted Rice (PTR) system is still the predominant method or rice establishment in most parts of Asia.
Other setbacks to its wider adoption are DSR-associated risks including weed infestation and yield losses.