10. Crops suitability base on location
River bank
or
Peat dome moderate elevation Low lying area Sea coast
Not recommended
Most Most
Suitable for crop Not recommended Suitable
for crop River
or
PEAT PEAT
sea
MINERAL SOIL
19. D2. LAND PREPARATION SYSTEM
A. DO
1. Land must be cleared of material
susceptible to fire
2. Compaction of top peat layer
B. DON’T
1. Do not plough the land
2. Do not burn the peat for any purpose
22. D4. Water management system
• D4a. Perimeter drain
• D4b. Field drain interval, depth
and width
• D4c. Water control structure
23. Outflow
Lower elevation
Water control points
SIMPLE LAYOUT OF DRAINAGE
Perimeter drain Perimeter drain
Filed drain
Filed drain
Perimeter drain
Perimeter drain
WATER
pond
Field drain
Field drain
2012/7/6
Intake
Perimeter drain
Upper elevation
24. Influence of soil water table by open drain
Drains spacing
rainfall rainfall
width width
Ground level
Drain depth
Drain depth
peat Soil water table between drain
peat
Soil water table
peat
Before complete drainage
After complete drainage
2012/7/6
26. D4b. Field drain
Drain Drain
width Field drain interval width
Distance depend on type of crops
50-75 cm 50-75 cm
50-75 cm
depth
Drain
Peat above soil water table
Peat below soil water table
