ARVI (Colocasia esculenta) PRODUCTION AND POST HARVEST
MANAGEMENT FOR VALUE ADDITION AND INCOME GENERATION
Dr Jai Singh (ARS)
M. Tech Ph D IIT KGP
Retd Director ICAR – CIPHET
Mob: 8958463808, E-Mail:
[email protected]
INTRODUCTION
Arabi /Arvi / Ghuinyan/ Taro (Colocasia esculenta ) is a plant cultivated for its sweet-
flavored tuber. The tuber, fresh leaves and stem are consumed in many ways by
thorough cooking. They can be eaten boiled, fried, baked, roasted, pounded into a
paste or prepared as flour, chips, porridge or pottage. The leaves and petioles are used
as green vegetables. It is grown in a wide range of soils having good organic matter.
Stony or rocky soils are avoided. Well-drained loamy soil with 5.5 to 7 pH range is most
ideal soil. it is grown in Uttar Pradesh, Bihar, Punjab, West Bengal, Assam, Orissa,
Andhra Pradesh, Tamil Nadu and Himachal Pradesh as a Kharif crop.Taro root known
as Arbi, Arvi(Hindi), Arukudya(Marathi) Chembu(Malayalam), Saru(Odisha),
Kizhangu(Kizhangu), ChemaDumpa/ChemaGadda (Telugu), Kesu/KesuvinaGadde
(Kannada).
The varieties grown in different parts of India are: Satamukhi, Panchamukhi, Kadma,
Muktakeshi, Jhankhri Kakakachu, Sree rashmi, Sree Pallavi, Safed Gauriya, , NDC 1,
NDC2, NDC3, etc.
Colocasia is propagated vegetatively by small cormels and harvested when leaves
begin to turn yellow and corms start to push out of the soil. Mini-sett technology has
also been developed for its multiplication. Mother corms are detached from healthy
plants at harvest. The selected mother corms are first cut into cylindrical pieces and
then cut horizontally into mini-setts of about 10 g weight. The mini-setts are then directly
planted in the field on mounds. Planting methods are: pit, mounds, ridge and furrow
depending on the soil type.
Sowing and Seed Rate:
Healthy, disease free and injury-free uniform sized tubers are selected and stored in a
cool place at least for 3 months before planting. About 750-1000 kg medium sized
corms are required to plant one hectare. The corms are sown 5 to 10 cm deep by
keeping 60 x 45cm or 45 x 30 cm distance from row – to – row and 45 cm from plant –
to – plant. Sowing can be done on flat field or on ridges / furrows/ pits. Optimum
spacing varies for different agroclimatic conditions. In Punjab 45x30 cm or 60x20 cm, in
Kerala 60x45 cm and in Uttar Pradesh 60x20 cm have been found to be optimum.
Manures and Fertilizers: