Rice production response and technological measures to adapt to salinity intrusion in the coastal Mekong delta

by Dang Kieu Nhan, Vu Anh Phap, Tran Huu Phuc and Nguyen Hieu Trung (2012)

Introduction

This report analyses the effect on yield and economic return of salinity-tolerant rice varieties and good farming practices, and suggests strategies for food production to adapt to salinity intrusion in the coastal Mekong delta. Official statistical data and primary data from recent projects in the Mekong delta were analyzed. Results showed that for areas with salinity level of up to 4‰, the growing of rice varieties tolerant to salinity and the application of appropriate agro-chemicals could help farmers maintaining their rice production and income. For salinity levels exceed 4‰, the conversion of rice culture to rice - shrimp rotational farming is an adaptation strategy to improve farmer's income and livelihoods. For national food security goals, rice production could be given to upper and mid-delta areas. Development of good farming technologies, improvement of agricultural extension and development of small-scale irrigation structures are investment priorities to further improve current farming systems and livelihoods of farmers in the coastal Mekong Delta.