UTTAR BANGA KRISHI VISWAVIDYALAYA PUNDIBARI, COOCHBEHAR, WEST BENGAL-736165

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UTTAR BANGA KRISHI VISWAVIDYALAYAPUNDIBARI,
COOCHBEHAR, WEST BENGAL-736165
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Our Location
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Districtwise Agri-features and Institutional
Presence of UBKV in North Bengal
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IMPORTANT FEATURES OF NORTH BENGAL

• Geographical Area 21541 sq km
• Population 1.87 crores
• Rural 86
• SC / ST population 40
• Small and Marginal Farmers 88
• Soil
• Light textured, deficient in macro and
  micronutrient
• Low soil pH, high water table
• High humidity (Max. 87-97 Min 43-65)
• Rainfall 1485 mm (Malda) to 3508mm (Jalpaiguri)
• Poor irrigation facility, 38 (Malda) to 16
  (Coochbehar) State average 42.8

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Area, Production and Productivity of Wheat in
West Bengal
Year Area (000ha.) Production (000 ton) Productivity (kg/ha.)
2001-02 426.0 1058.6 2485
2002-03 405.4 887.4 2189
2003-04 425.7 985.7 2315
2004-05 400.1 841.5 2103
2005-06 367.0 774.0 2109
2006-07 351.0 799.0 2281
2007-08 353.0 917.0 2602
2008-09 316.0 765.0 2490
2009-10 307.0 847.0 2680
Source Economic Review, Govt. of W.B
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• Major Cropping sequence
• - Old Alluvial Zone
• Winter rice - Fallow
• Winter rice - Summer rice
• Maize - winter rice - Potato / wheat / vegetable
  (emerging)
• - Terai Zone
• Winter rice - Fallow
• Jute / Maize winter rice Potato / vegetable

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Intervening Areas for Wheat Area expansion

• - Old Alluvial Zone
• Replacement of summer rice by wheat
• Expansion of wheat area through covering fallow
  and utilizing excess water from boro-paddy for
  supplementary use
• -Terai Zone
• Expansion of area through covering fallow
  utilizing residual soil moisture
• Application of supplementary irrigation at
  critical growth stage through decreasing potato
  area.

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Major constraints of wheat production in West
Bengal

• Late transplanting of paddy after jute coupled
  with long duration varieties like Swarna
• Late sowing of wheat
• - Loss / problem in harvesting due to occurrence
  of pre-monsoon rain
• - Suffering from terminal heat during panical /
  ripening stage
• - Non-availability of good late sown variety
• - Micronutrient deficiency such as boron cause
  spikelet sterility in wheat
• - Occurrence of foliar blight diseases like
  Zonate Eye Spot, Leaf Blight, Tan Spot, Spot
  Blotch

Foliar blight
Spikelet sterility
Preharvest sprouting
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Technologies Generated from CIMMYT Collaborated
Programmes
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SPOT BLOTCH RESISTANT GENOTYPE
BASED ON AUDPC 2
ENTRY No. CROSS NAMES AUDPC1 AUDPC2
6746 ELVIRA//INQALAB 912/KUKUNA 83.33 148.15
6702 TILHI/4/CROC_1/AE.SQUARROSA (213)//PGO/3/CMH81.38/2KAUZ 108.02 169.75
6739 PBW343/HUITES/4/YAR/AE. SQUARROSA (783)//MILAN/3/BAV92 101.85 197.53
6726 INQALAB 912/KUKUNA//2KRONSTAD F2004 129.63 216.05
6731 SERI.1B2/3/KAUZ2/BOW//KAUZ2/5/CNO79//PF70354/MUS/3/PASTOR/4/BAV92 157.41 216.05
6742 PBW3432/KUKUNA//PBW3432/KUKUNA/3/PBW343 166.67 231.48
6719 WHEAR/3/PBW343/PASTOR//ATTILA/3BCN 182.10 246.91
6729 CNDO/R143//ENTE/MEXI_2/3/AEGILOPS SQUARROSA TAUS)/4/WEAVER 154.32 262.35
6749 SERI.1B2/3/KAUZ2/BOW//KAUZ2/5/CNO79//PF70354/MUS/3/PASTOR/4/BAV92 185.19 287.04
6751 LOCAL CHECK 188.27 287.04
6710 CROC_1/AE.SQUARROSA (205)//KAUZ/3/SASIA/4/TROST 191.36 293.21
6738 WAXWING2/CIRCUS 182.10 293.21
6707 SERI.1B2/3/KAUZ2/BOW//KAUZ2/5/CNO79//PF70354/MUS/3/PASTOR/4/BAV92 185.19 299.38
6714 SERI.1B2/3/KAUZ2/BOW//KAUZ2/4/KRONSTAD F2004 216.05 302.47
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Selection of stress tolerant wheat

• Selection of terminal heat tolerant varieties for
  late (15th December) and very late (30th
  December) sown conditions
• Late Sown- Francolin (4.05 t/ha), and NW 2036
  (3.40 t/ha)
• Very Late Sown- Francolin (3.24 t/ha), and NW
  2036 (2.84 t/ha)

Selection of genotypes for tolerance to Boron
Defficiency UBW 5 (BD(JAM)208-IJE-OJE-OJE..),
UBW 6 (CMSS 93Y02712T-40Y.), UBW 7
(TNMU/3/ALD/COC/URES)
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ZERO-TILLAGE WHEAT (Conservation Agriculture
Approach)

• Use varieties suitable for late sowing
• To utilize residual soil moisture
• Area expansion of wheat for high ecological land
  use.
• To combat weed problem
• Minimize disease occurrence

• Varietal Performance
• HD 2733, DBW 39 (Timely Sown)
• NW 2036, Francolin (Late Sown)

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VARIETAL SELECTION FOR ZERO TILLAGE CONDITIONS
Sl. No. Variety Yield (t/h) Yield (t/h) Foliar blight Foliar blight
Sl. No. Variety ZT CT ZT CT
1 Francolin 5.20 5.25 55 75
2 Ruby 3.36 4.58 54 75
3 Agrim 2.90 2.39 75 77
4 HD 2827 3.80 3.97 55 55
5 Sarpat 3.91 3.14 54 75
6 DBW 17 3.80 3.40 54 75
7 DBW 39 5.30 5.17 54 55
8 DBW 38 3.85 4.65 75 75
9 Munal 4.20 3.95 55 75
10 Ko 307 4.72 4.50 74 75
11 Raj 4120 3.60 3.76 75 75
12 HD 2687 3.84 3.50 55 54
13 HD 2985 3.59 3.70 75 75
14 HD 2733 5.20 5.35 55 55
15 PBW 621 4.10 4.23 54 55
16 Sonalika 3.78 3.85 77 79
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Weed- A major problem for NEPZ
Polygonum pensylvanicum
Polygonum persicaria
Polygonum hydropiper
Weed pressure in wheat at Coochbehar
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• Zero tillage had considerably reduced weed
  pressure, however, it caused shifting of weed
  flora from
• Polygonum and
• Stellaria media
• to
• Hydrocotyl ranunculoides, Solanum niagrum,
• New species of Polygonum (?)
• Ageratum conyzoides
• Stellaria acquatica

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DISEASE SCENARIO
Zonate Eye Spot
Spot Blotch
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Development of system approach adopting
conservation measure - Zero tillage sowing for
all the crops - Introduction of medium duration
paddy varieties ( 130 days) - Direct seeded rice
based on weather forecasting - Unpuddled
transplanted rice through manually /
transportation - Inclusion of legume in crop
rotation / mix cropping during prekharif / rabi
season - Bio-priming of seeds / application of
bio-fertilizers - Crop residue management
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Problems and Opportunities

• Increase area under cultivation by converting
  fallow land into cropped area
• Soil
• crop residue management
• green manuring through surface mulching
• reduced or zero tillage
• efficient utilization of nutrients (using
  bio-fertilizers)
• Soil Health Assessment
• Microbial Activity
• Carbon pool assessment
• Physico-chemical attributes
• Disease
• Study of disease dynamics
• Biological management of residue
• Weeds
• Weed dynamics and shifting
• Weed management
• Varietal Development
• Suited to ZT condition,
• Boron deficiency tolerant

1.Soil constraints i) Widespread deficiency of
micronutrients (Zn and B) ii) Low soil organic
matter iii) Acidic pH iv) Sandy to sandy loam
texture v) Fragmented land 2.Use of low
productive varieties 3.Imbalance in nutrient
management 4.Disease incidence at epidemic
level 5.Aggressive growth of weeds