Field layout for large rice field construction in the red river and Mekong river deltas, Vietnam

Rice production plays an irreplaceable role in Vietnam’s agriculture - the backbone of the economy where 70% of the population live in the countryside and nearly 50% of the national labor force working in the agricultural economy. However, at present, Vietnam’s rice sector is facing many difficulties and challenges, especially low productivity and high production cost due to land fragmentation.

This report analyzes the layout of farm road, irrigation canal, field size and agricultural machinery workability in the Red River Delta and the Mekong Delta, recomending the scheme for farm land consolidation that is suitable to present condition of farm land ownership, agricultural mechanization, irrigation canal and farm road arrangement as well to the future condition of land accumulation, rural labor shortage and higher power agricultural machinery.

Result of field survey on the size of 700 field plots, currently underwent land groupping, in the Red river delta reveales that, because of small farm size, more than 80% of the plots having width of 20-40 m and more than 90% of the plots having length of 50-100 m. Meanwhile, survey on 800 field plots in the Mekong river delta shows that more than 70% of the field having width of 20-50m and 65% of the field having length of of 150-300 m. An economic analyssis of efficiency of land preparation and harvesting machines, popularly used in the two deltas, shows that the machine effective working range is larger than 50 m.

To improve land and labor productivity, field plots are recommended to be large enough to meet machine effective working range as well as having direct assess to irrigation and farm road. At present, the sizes of paddy field should be 20-40 m by 50-100 m and 20-50 m by 150-300 m, respectively, for the Red River Delta and Mekong River Delta. In the future of land accumulation, the field can be enlarged, by simply removing short size bank of the present field, to become Nx(20-40) mx100 m for the Red River Delta and Nx(20-50)mx(150-300) m for Mekong River Delta

1. Introduction

2. Current Status of large rice fields construction in the Red River and Mekong River deltas

2.1. Farm land consolidation and construction of large scale rice fields in the Red River Delta

2.2. Construction of large scale rice fields in the Mekong Delta

2.3. Machine work and size of field plots

3. Recommendation for large rice field Planing

3.1. Field plan arrangement of field plot and block

3.2. Arrangement of on-farm roads and canals

4. Conculsions

REFERENCES

[1]. Doan Doan Tuan, Masayoshi Satoh, and Nguyen Thanh Nga (1996): Impact of Production Privatization on On-farm Water Management in the Red River Delta, North Vietnam.

[2]. Design standard TCVN 4118-95: Irrigation canal system, 1995

[3]. Tandard 22TCN 210-92: Design standard for rural roads, 1992.

[4]. Reports on the experimental results in the selection of a combined harvest machine, 2008-2018

[5]. Reports on the test results on the relationship between the length of the field plot and the economic efficiency of a tillage machine, Center for inspection of agricultural machines and equipment, 2010-2019

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► See detail:  Field layout for large rice field construction in the red river and Mekong river deltas, Vietnam

Doan Doan Tuan
Vietnam Academy for Water Resources Research
Email: doandoantuan@gmail.com
SATOH Masayoshi, ISHII Atsushi
University of Tsukuba, Japan

International conference water resources research on water resources security,
disaster prevention and climate change adaptation