PRACTICES FOR PAULOWNIA
Prior to planting
Paulownia, it must be ensured that the selected site is well drained, without any water
logging (Paulownia cannot survive water logging for more than 2 to 3 days) The identified
site should be thoroughly cleared of weeds.
Dig pit of size
3x3x3ft. During digging of the pit, care should be thoroughly cleaned of weeds.
The pit mixture should
compose of well - decomposed organic manure (FYM or compost), de oiled neem cake and Top
soil (kept aside during digging of the pit.) The pit mixture is prepared by thoroughly
mixing equal parts of organic manure and topsoil, along with 250 grams of de-oiled
neem-cake. The pit-mixture thus prepared, should be used for filling the pit.
PIT FILLING & SPACING
The pits must be
filled, as much as possible, only with the prepared pit-mixture. If the topsoil is
insufficent, coarse river sand may be used as an inert substitute, which also increases
porosity and aeration.
A peg may be placed in
the centre of the pit for identification during planting.
The pits must be filled
at least 2weeks before planting, to allow for the pit-mixture to settle.
The recommended spacing
for the plant is a square or triangular grid type with dimension of 10 X 10 ft.
FERTILIZER APPLICATION &
Fertilizer should be
applied in 8 split doses.
First year N:P:K (17:17:17) & Micro Nutrients 200gms./ plant / month, except dormancy
(Oct - Jan) period. Every month this has to be split and applied through pocket manuring.
Make hole 1 ft. away from the plants and the depth of the pit should be 1 ft. Apply the
fertilizer in the hole and fill it with the soil.
Application / Month
After 5th the same type
of pocket manuring can be continued upto three years.
Micro nutrient application 1 gm / lt. Of water, foliar application once in 15 days for 1
Leaves of young
Paulownia plantation are susceptible to fungal diseases causing leaf spot and leaf blight.
Foliar sprays of fungicide mixes (Blitox, Bavistin and Indofil M-45 @ 2gms. Each per litre
of water) should be applied regularly as a prophylactic measure to prevent leaf fungal
Root and basal portion
of young Paulownia plantation are also susceptible to fungal diseases causing root rot and
basal rot. Soil drenching with fungicide mixes (Blitox, Bavistin and Indofil M-45 @ 2gms.
Each per litre of water) should be applied after planting as a prophylactic measure to
prevent root fungal diseases. Recent, superior anti-fungal products like Ridomil and
Confidor have also aid in preventing root diseases.
Normally the leaves of
young Paulownia plantation are attacked most often by sucking insects during the dry
summer month and by caterpillars and other defoliators during the humid rainy months.
are most susceptible to pathogen and insect attacks during the establishment phase and
hence, utmost care during this phase is critical to the success of the plantation.
plantation, pruning of side shoots must be undertaken to ensure a minimum, straight
"butt-length" stem growth of 4.5metres by the end of the first growing season
(i.e one year). All the side shoots growing below 4.5 metres should be carefully pruned at
least 5 cms away from the main stem, without injuring the tender bark.
It is important that
Paulownia trees attain a minimum height of at least 4 metres and a basal girth diameter of
5 cms in the first growing season before they become dormant in the winter months. If the
desired height and girth is not achieved before dormancy, the trees must be
"coppiced". (coppiced is done by cutting down the tree over 4 cms. Above the
ground level during the dormancy period) After coppicing, new shoots will emerge from each
cut-off trunk in about 2 weeks. One healthy shoot is allowed to grow and the rest are
nipped. The ideal time for coppicing is late winter.
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