scholarly journals Assessing the Performance of Climate Smart Rice Production Systems in the Upper Part of the Vietnamese Mekong River Delta

2021 ◽  
Vol 18 (1) ◽  
pp. 15-29
Author(s):  
Kim Khoi Dang ◽  
◽  
Minh Thu Doan ◽  
Thi Ha Lien Le ◽  
Thi Tam Ninh Nguyen ◽  
...  

Climate smart agriculture (CSA) has gained considerable attention in Vietnam due to its potential to increase food security and farming system resilience while decreasing greenhouse gas emissions. In recent years, several CSA practices have been introduced in rice production, the most important sub-sector of Vietnam’s agriculture. However, few studies have been done in Vietnam to produce comprehensive assessments of CSA performance in the rice sector. This research proposes a comprehensive approach to assess CSA practices through a new set of evaluation indicators. A case study in An Giang province of the Vietnamese Mekong River Delta was implemented to evaluate the performance of five CSA models versus that of the triple rice crop system (i.e., benchmarking model). Results show that rice-shrimp and rice-lotus rotations are most profitable, low-risk, and applicable at a larger scale. Given that the current study analyzed and calculated only a small number of indicators and types of CSA practices, further research is necessary to test all indicators and diversified types of CSA models.

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Van-Hung Nguyen ◽  
Alexander M. Stuart ◽  
Thi-My-Phung Nguyen ◽  
Thi-Minh-Hieu Pham ◽  
Ngoc-Phuong-Thanh Nguyen ◽  
...  

AbstractOveruse of seed and chemical inputs is a major constraint for sustainable rice production in Vietnam. In this study, two seasons of field trials were conducted to compare different crop establishment practices for rice production in the Mekong River Delta using environmental and economic sustainability performance indicators. The indicators including energy efficiency, agronomic use efficiency, net income, and greenhouse gas emissions (GHGEs) were quantified based on four treatments including manual broadcast-seeding, blower seeding, drum seeding, and mechanized transplanting. Across the four treatments, yields ranged from 7.3–7.5 Mg ha−1 and 6.2–6.8 Mg ha−1 in the Winter-Spring (WS) and Summer-Autumn (SA) seasons, respectively. In comparison with direct seeding methods, mechanized transplanting decreased the seed rate by 40%. It also led to a 30–40% reduction in pesticide use during the main crop season (WS). Mechanized transplanting required higher inputs, including machine depreciation and fuel consumption, but its net energy balance, net income and GHGE were at a similar level as the other non-mechanized planting practices. Mechanized transplanting is a technology package that should be promoted to improve the economic and environmental sustainability of lowland rice cultivation in the Mekong River Delta of Vietnam.


Author(s):  
Nguyen T. Hien Thuan ◽  
Luong V. Viet ◽  
Nguyen T. Phuong ◽  
T. X. Le Lan ◽  
Nguyen D. Phu

PLoS ONE ◽  
2019 ◽  
Vol 14 (10) ◽  
pp. e0223884 ◽  
Author(s):  
Bui Tan Yen ◽  
Nguyen Huu Quyen ◽  
Trinh Hoang Duong ◽  
Duong Van Kham ◽  
T. S. Amjath-Babu ◽  
...  

Author(s):  
HOANG HA ANH

Mekong River Delta is one of the eight agricultural production regions ofVietnam and is also the largest rice producing region which contributes morethan 50% of the country’s rice production. However, the projected changes in climate are considered to cause adverse impacts on the rice production ofprovinces within the delta. This study assessed the vulnerability of rice farmingprovinces in Mekong River Delta to provide information for decision-makers todesign appropriate adaptation and mitigation plan for the delta. The result ofthe vulnerability index showed that Ca Mau and Tra Vinh are most vulnerableto climate change. The coastal provinces are more vulnerable than provinceslocated farther inland. The results for the simulation model of paddy yield underdifferent scenarios showed decreases in the paddy yield in Mekong River Delta.Specifically, the yield of Spring paddy decreases 6%, Autumn paddy decreases2%, Winter paddy decreases 4% and Autumn-winter paddy decreases 4% in2050. From these results, the climate change adaptation and mitigation policiesin this delta is suggested to be focused reducing the exposure to sea level rise;upgrading the irrigation system for paddy planting since the coastal provinceshave high rate of rain-fed paddy, vulnerability can also be reduced by enhancingthe adaptive capacity of provinces through subsidizing and providing farmerswith new paddy varieties which are more tolerant to salinity. Keywords - Climate change, quantitative vulnerability assessment, rice production,Mekong River Delta, Vietnam


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