Raising of Seed Nuts in Nursery
|Preparation of nursery||
Nursery sites should be well drained with light textured soil and
with adequate but not too much shade. In open areas, provide shade
during summer. Prepare beds of 1.5 m width and of convenient length
with 75 cm space between beds. In areas where drainage is poor,
prepare raised beds.
|Planting of seed nuts||
Plant the seed nuts in the beds in trenches 25-30 cm deep and cover
with soil so that top portion of husk alone is visible. The nuts may
be planted either horizontally with the widest of the segments at
the top or vertically with stalk-end up. Vertical planting is
preferable on account of convenience in transporting and lesser risk
of seedling injury.
Before planting, examine seed nuts and discard those without nut water and rotten kernels. Sow the nuts in the nursery after commencement of southwest monsoon during May-June.
|Spacing to be followed||
Plant the seed nuts at a spacing of 30 cm (between rows) x 30 cm
(between nuts) with four or five rows per bed.
|Poly bag nursery||
Germinated seeds are transplanted in
poly bags of size 60 x 40 cm with 8-10 holes at the bottom. The
potting mixture is prepared in the 2:1:1 ratio of top soil, sand and
compost mixture. The advantage of poly bag seedlings is that there
is no transplanting shock and the seedlings are with better vigour.
But the disadvantage is that the expenditure on transportation and
seedling cost would be more.
|Care and management of nursery||Provide protective fencing to the nursery if it is located in open area. If the soil is sandy, provide mulching immediately after the cessation of monsoon rain. Irrigate the nursery once in two days during summer months. Keep the nursery beds free of weeds by periodic weeding. If termite is noticed, remove soil in the affected area up to a depth of about 15 cm and dust soil and nuts with carbaryl or chlorpyrifos. Repeat if attack persists. Periodically spray the plants with 1% Bordeaux mixture or any other copper fungicide to prevent fungal infection.|
|Kerala Agricultural University. 2011. Package of Practices Recommendations: Crops. 14th edition. Kerala Agricultural University, Thrissur- 360 p.|