experiments conducted by ricemapp tamotsu seiji, jica expert
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Experiments conducted by RICEMAPP
Tamotsu SEIJI,
JICA expert
Experiments and other field activities in 2012
• Different timing of Nitrogen fertilizer application• Effect of rice bran application for weed control• Different ratoon-ability in different plant types
and planting spacing• Demonstration of Non-tillage rice cultivation• Demonstration of HYMERIC • ( Germination habit of Basmati 370 )
• Recommendation of top-dressing : 45 – 50 days after sowing. • Top-dressing aiming to maintain “young panicle formation
stage”.• Safer timing of top-dressing: Heading stage
Different timing of Nitrogen fertilizer application
45-50 days
Different timing of Nitrogen fertilizer application
• Data collection is still on going.
• But, no significant difference on yield.
• Since farmers in MIS practicing dense planting, combination of fertilizer and spacing will be tried in next season.
Effect of rice bran on weed control
• Rice bran application (1t/ha) at 5 days after transplanting is effective to control growth of weeds.
• T1 control
• T2 500kg/ha
• T3 1t/ha
• T4 2t/ha
Effect of rice bran on weed control
• Weeds grown were taken and dried weight were checked.
• T2 – T4 had less amount of weeds than T1. But no significant difference.
• Farmers in MIS do not irrigate their fields after T/P.
Non-tillage Rice Cultivation
• To reduce field preparation cost• For smooth operation of transplanting• Previous hills/ratoons were killed by herbicide • BS 370 20 X 20cm• Yield : 3t/ha
HYMERIC
• To reduce labor cost for transplanting• Seedlings are raised in carbonized husks for
5days• NERICA varieties• Higher establishment rate
Germination of BS370
• During experimental works, BS 370 showed lower germination rate.
Time
Moi
stur
e co
nten
t
G
A phase
B phase
C phase
30%
Water absorption Preparation of Germination
Vegetative Growth
Germination of BS370
• 10g of seeds for 4 varieties were prepared.• Moisture content were checked and dried weight
of seeds were calculated. • Seeds were soaked into water.• Each sample was drained and weighed every 3
hours for 30 hours.
Thank You!
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