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AJWAN (VAMU)
Varieties
a) Ommo-Lam selection I Medium (80cm) erect with 25 branches,
early type (135 days): Reaction to pests and disease is same as other
varieties. Average yield 8 q /ha which is on par with local but early
by 20 days.
b) Ommo-Lam Selection II Medium tall (70cm), spreading
with prolific branching (45 branches) with duration of 160 days. Reaction
to pests and diseases is same as other varieties. Average yield 10q/ha,
which is 15% over local.
Seeds and sowing
- Ajwan is a Rabi season crop and it is grown for its grain. For grain
purpose, the best season is Rabi (October-February). Black cotton soils
with high retentivity of moisture are best under rainfed conditions.
Light garden soils are also suitable with irrigation source. This crop
can be cultivated in comparatively poorer soils and can with stand moisture
stress and drought when compared to other minor spices.
- Seed rate is 3-4 kg ha-1. Optimum time of sowing is middle
of August to October. The seed is sown very shallow with gorru and covered
with a brush harrow with a spacing of 60x15cm.
Fertilisers
- Apply 20 N, 40 P and 20 K kg ha-1 as a basal dose besides 5 tonnes
of farmyard manure.
Intercultivation
- Weeding regularly up to 2months and afterwards the crop will spread
and smother the weeds.
Pest Management
- Spray monocrotophos @ 1.6ml l-1 of water or chlorpyriphos
@ 2.5m l-1 or quinalphos @ 2.5ml l-1 of water
just before flowering against Spodoptera and Helicoverpa. Spray 0.5%
sulfex at the time of flower initiation and again after 15 days to control
the powdery mildew disease.
Harvesting
- Harvesting may be done just at the time of grain turning to straw
colour.
Threshing and cleaning
- After drying for 2-3 days, threshing is done by beating. The seed
is perfectly dried under sun shade conditions, cleaned and bagged for
marketing.
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