AMUKKARAM- MEDICINAL PLANT
How to cultivate
Withania somnifera is cultivated in sandy loam or light red
soils having a PH of 7.5 to 8.0 with good drainage. It is a late rainy season
crop. It requires relatively dry seasons, and the roots are fully developed
when 1-2 late winter rains are received. The areas receiving 65-75 cm rainfall
are best suited for its cultivation.
Withania somnifera is mainly grown on residual fertility and
hence no manure or fertilizers are recommended.
Direct sowing: Seeds can be sown directly in the field by
broadcasting since it is largely grown as a rainfed crop, sowing is determined
by the monsoon. After receiving pre monsoon rainfall, soil is brought to fine
tilth and the crop is sown during the second week of July. A seed rate of 10-12
kg per hectare is sufficient when the crop is raised by this method.
Transplanting: About 5 kg of seeds is required to provide
seedlings for an area of one hectare. The seeds are sown in the nursery just
before the onset of the rainy season. The seeds are lightly covered with soil
and germinate in about 6-7 days after sowing. When the seedlings are about 6
weeks old they are transplanted in the field in 60 cms wide furrows 60 cm
apart.In the directly sown crop, the plants are thinned at 25-30 days
after sowing to maintain a plant propulation of 20,000-25,000/ha. Hand weeding
at 25-30 days interval helps to control the weeds effectively.Harvesting starts from January and continues till March (150-170
days after sowing). The maturity of the crop is judged by the drying of leaves
and red berries. The entire plant is uprooted for roots which are separated
from the aerial parts by cutting the stem 1 - 2 cm above the crown.The roots are cut into small pieces of 7 - 10 cm to facilitate
drying. The berries plucked from dried plants are threshed to obtain the seeds
for the next crop. An average yield of about 400 - 500 kg of roots and 50 kg of
seeds are obtained from one hectare.
Prof. John Kurakar
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