| Research
Recommendations (Approved in AGRESCO)
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| On
the basis of research studies conducted at Akola,
during 1984 - 1985 to 1986-1987 it is recommended
that suru sugarcane should be planted in January for
maximum tonnage. However, its planting may delayed
up to 15th March, but after 15th March it should not
be planted On the basis of research studies conducted
at Akola, during 1984 - 1985 to 1986-1987 it is recommended
that suru sugarcane should be planted in January for
maximum tonnage. However, its planting may delayed
up to 15th March, but after 15th March it should not
be planted |
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| Experiments
conducted during 74-75 to 1977-78 on fertilizer requirement
of sugarcane variety viz, Co 1163 at Akola revealed
that for obtaining high yields of suru sugarcane 175
kg N /ha and 100 kg P2O5 /ha be applied to medium
soil. There was no significant response to potash
application.
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| Studies
conducted during 1975-76 to 1977-78 in respect of
split application of NPK to sugarcane variety Co 740
at Akola revealed that 1) Nitrogen may be applied
in four splits to sugarcane i.e. 1/10, 4/10, 4/10
and 1/10 or in three splits in the proportion of 2:2:1
or two splits in the proportion of 1:1. The time of
application of various splits are as under
Four splits Three splits Two splits
1 At planting 1 At planting 1 At planting
2 At 8 weeks 2 At 12 weeks 2 At earthing
3 At 14 weeks 3 At earthing
4 At earthing
Phosphate and potash may be applied at planting alone
or in two splits doses in the prop oration of 3:1
or 1:1 at the time of planting and earthing up respectively.
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| On
the basis of fertilizer management studies for pre
seasonal sugarcane conducted at Akola during 1983-84
and 1985-86 it is recommended that 175 kg N, 100 kg
P2O5 and 100 kg K2O /ha be applied for western part
of Vidarbha. Further the study revealed that split
doses of Nitrogen i.e. 25 kg at planting, 75 kg after
8 weeks, 25 kg after 14 weeks and 50 kg at earthing
and phosphorus and potassium in two equal split doses
i.e. 50 kg at planting and 50 kg at earthing up should
be applied.
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| Studies
conducted at Akola during 1986-87 to 1988-89 confirmed
the earlier recommendation of 175 kg N /ha for suru
planting ( Co 740, Co 62175) The same dose also holds
good in case of Co 7219 (Sanjivani) and CoM 7125 (Sampada)
for Eco-unit VI. It is recommended to apply this dose
in three splits i.e. 25 kg N at planting, 90 kg N at
8 - 10 weeks after planting and 60 kg N at earthing
up. |
| Studies
conducted at Navegaon bandh during 1986-87 to 1989-90
to assess the Nitrogen requirement of sugarcane varieties
Co 740 and Co 7219, indicated that the recommendation
of 175 kg N /ha for suru sugarcane of Western Vidarbha
also holds goods for Eastern Vidarbha zone. The Nitrogen
may be given in three splits i.e. 30 kg at planting,
90 kg at 10 weeks after planting and 55 kg at earthing
up. |
Three
years data on weed control in sugarcane (1979-80 to
1981-82) indicated that cultural method of weed control
did not differ significantly from chemical weed control
and trash mulching. The weedicides included were Diuron
1 kg /ha, Gramoxone 2.5 kg and Feroxine 2.5 kg /ha
after 30 – 35 days of 1st spraying of Atrazine
2.5 kg /ha. The cost of weed control by cultural methods
( 3 hand weeding) was the lowest. However, when labour
is in short supply use of Atrazine 2.5 kg /ha. or
Diuron 1 kg /ha on soil prior to weed emergence has
been recommended. |
Studies
conducted during 1979-80 to 1981-82 to determine the
scheduling of irrigation to sugarcane reveled that
when irrigation is scheduled at cumulative evaporation
of 125 mm (16 irrigations) instead of 75 mm (25 irrigation)
the harvestable cane tonnage decreased from 96 mt
to 80 mt /ha. Hence, 25 irrigations at 75 mm CPE have
been recommended. The study further revealed that
when irrigation water is limited trash mulching @
2.5 t/ha after the emergence of sugarcane with 16
irrigations scheduled at 125 mm CPE is recommended.
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On
the basis of inter cropping trials conducted at Akola
from 1982-83 to 1985-86 it is recommended to adopt for
higher monetary returns inter cropping of onion or summer
ground nut in suru sugarcane with a fertilizer dose
of 200 kg N, 125 kg P2O5 and 125 kg K2O /ha in Western
part of Vidarbha, Bhendi and Cowpea were found to be
adversely affecting sugarcane yield and hence should
not be taken as inter crop. |
| Chemical
control studies on whip smut in sugarcane transmitted
through setts conducted at Navegaon Bandh during 1986-87
to 1988-89 reveled that all the fungicidal treatments
as well as hot water treatment to cane setts were at
par in effective control of whip smut over control.
However, on the basis of CB ratio fungicidal treatment
of 0.1 % carbendazim solution for 10 minutes has been
recommended as it recorded the highest yield of sugarcane
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| It
is recommended that 350 kg N + 150 kg P2O5 +150 kg K2O
/ha should be given to seed crop of sugarcane in six
splits. |
| Release
of 35 earthworms / kg of substrate is recommended for
conversion of half decomposed sugarcane trash in to
vermicompost within a period of 60 days. |
| Application
of 75 % of recommended N through inorganics (131 kg
N ha-1) + 25 % of N through FYM (7.5 t ha-1 N) + Bio-fertilizers
( Azotobacter +PSB @ 10 kg ha-1 each) + Bio-pesticide
(Trichoderma @ 2.5 kg ha-1) for suru sugarcane and in
addition to above, trash mulching and green manuring
of Sunhemp (Rhizobium inoculated @ 25 g/ kg seed) each
in alternate rows for ratoon is recommended for increasing
yield, NMR and improving physico-chemical properties
of soil. |
| For
higher NMR, in paird row planting of pre-seasonal sugarcane
(90x180cm) intercropping of onion (15x15cm), raddish
(45x15cm)and cabbage(45x60cm) is recommended |
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