(1) The document reports on rice production in Laos, noting that the largest rice planting areas are in Savannakhet, Champasack, and Attapeu provinces. (2) It identifies specific rice varieties recommended for different problem areas, such as low temperature, flooding, and drought, as well as iron toxicity and salinity issues. (3) Salinity is described as one of the major soil problems limiting rice yields, especially in Sayyaboury, Vientiane, and Savannakhet provinces where much of the country's rice is produced.

1. Regional Conference on Role of Soil and Plant
Health Towards Achieving Sustainable
Development Goals in Asia-Pacific
Country: Lao PDR
Presented: Singty Voradeth
Organization: Rice Research Centre
National Agriculture and Forestry Research Institute
Ministry of Agriculture and Forestry
Country Report

2. 2
Overview
 General information
 Rice Planting area in ws 2016
 Rice Production in ws 2016
Specific variety recommendations for potential
problem areas/special target characters
The status of salinity problem
 Fe toxicity problem
 Salinity problem

3. 0
50,000
100,000
150,000
200,000
250,000
Phongsaly
Luangnamtha
Oudomxay
Bokeo
Luangprabang
Huaphanh
Xayabuly
VientianeCP
Xiengkuang
Vientiane
Borikhamxay
Khammuane
Savannakhet
Xaysombuon
Saravan
Sekong
Champasack
Attapeu
Planting area (ha)
Source: Agriculture census, MAF, 2016
Rice Planting area in ws 2016

4. Rice Production in wet season 2016

5. Specific variety recommendations for potential problem
areas/special target characters
Problem/target Best varieties (best is first listed)
Low temp TDK5, TDK6, TDK8, TDK11
Flood prone TDK1-Sub1, IR64-Sub1
Drought-prone TDK9, NTN1, TDK11, TDK12, PNG1, PNG3
Salinity Non
Fe +2 toxicity TDK10, TDK11, Muang-nga, TDK9, Doktiew, TSN1,
Low soil fertility TDK9, TDK11, TDK12, TSN1,
GM problem Muang-nga, Ta-khiat, Lay-keaw
Aroma G RD6, KaI Noi, Hom-nang-nuan
Aroma NG HTDK1, Homsavanh, VTE450-1, Homchampa

6. An evidence of iron toxicityAn evidence of iron toxicity
Iron toxicity

7. Distribution of Iron toxicity
on farmer' field
The effect of iron
toxicity is yield loss
because of reduced
growth, especially
height, and reduced
tilling.

8. Photo by Vientiane
Salinity problem
Main area for rice production
is from central to southern
parts of country. There are
many problem in rice
production such as insect
pests, diseases, soil problem:
low organic matter (<2%),
iron toxicity, Soil salinity ….

9. Salinity problem
Soil salinity problem is one of
the major limiting factors that
negatively affects the rice
yields as in other countries,
especially in Sayyaboury,
Vientiane province and
Savannakhet province where
is main production come
from.
0
50,000
100,000
150,000
200,000
250,000
Phongsaly
Luangnamtha
Oudomxay
Bokeo
Luangprabang
Huaphanh
Xayabuly
VientianeCP
Xiengkuang
Vientiane
Borikhamxay
Khammuane
Savannakhet
Xaysombuon
Saravan
Sekong
Champasack
Attapeu
Planting area (ha)