2021 to 09Th May ‘2021
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AGROMETEOROLOGICAL ADVISORY BULLETIN FOR THE STATE OF WEST BENGAL AND A&N ISLANDS For the period from 05th May ‘2021 to 09th May ‘2021 Azadi Ka #AmritMahotsav Issued on TUESDAY, 04th May ‘2021 Issued by Regional Meteorological Centre, Alipore, Kolkata-27 in collaboration with State Agricultural Universities and state Agricultural Department. Agroclimatic zones of the state Sl. Agroclimatic Zone Districts Agromet Field Unit (AMFU) No. Location 1 Northern Hill Zone Darjeeling Kalimpong 2 Terai-Teesta Alluvial Jalpaiguri,Alipurduar, Pundibari Zone Coochbehar and Uttar Dinajpur. 3 Gangetic Alluvial Murshidabad,Nadia, North 24 Zone Parganas,Howrah, Hooghly Kalyani and Burdwan 4 Vindhyan Alluvial Dakhin Dinajpur, Malda Majhian Zone 5 Costal Saline Zone South 24 Parganas and Purba Kakdeep Midnapore 6 Undulating Red and Purulia, Bankura , Paschim Kharagpur Laterite Zone Midnapore , Jhargram and Birbhum Met sub-divisions of the state For Meteorological purposes, the state has been divided into two sub-divisions ( IMD Classification): Gangetic West Bengal consists of Dakhin Dinajpur, Malda, Murshidabad , Nadia, South 24 Parganas, North 24 Parganas, Bankura, Purulia, Birbhum, Paschim Midnapore, Jhargram , Purba Midnapore, Kolkata , Burdwan. Sub-Himalayan West Bengal consists of Darjeeling,Coochbehar,Alipurduar , Jalpaiguri,Dakhin Dinajpur, Uttar Dinajpur. Northern Hill Zone AMFU -KALIMPONG Part I: Weather Districtwise significant Past Weather in different District level Weather Forecast for different agroclimatic zones agroclimatic zones for the period 30/04/21 to 03/05/21 for the period 05/05/21 to 09/05/21 Northern Hill Zone Northern Hill Zone DARJEELING DARJEELING Days Rainfall Max. Min. Relative Possibility of moderate rainfall during 05th of (mm) Temp Temp Humidity May to 09th of May have been predicted. In o o Rainfall ( C) ( C) coming five days total rainfall 74.00 mm is Friday 0.0 15-22 12-14 70-95 expected. Saturday 6.9 Possibilities of cloudy/over cast sky on 05th Sunday 8.6 Cloud of May, mainly cloudy sky during 06th to Monday 0.0 Cover 08th of May and partly clear sky on 09th of Weekly rainfall & temperature forecast: May are expected. According to Extended Range Forecast (ERF) generated by Max. Maximum temperature is expected to be IMD, for West Bengal & Sikkim subdivision from 05th of May Temp. around 15.0°C to 17.0°C. to 15th of May, 2021; the weekly rainfall forecast is 6.76 mm, Min. Minimum temperature is expected to be Normal is 9.33 mm & % DEP is -27.57. The weekly maximum Temp. around 11.0°C to 12.0°C. temperature forecast is 31.74°C, normal is 31.13°C & anomaly Maximum relative humidity is expected to Max. RH is 0.62°C. The minimum temperature forecast is 20.93°C, be 75-87 %. normal is 20.74°C & anomaly is 0.19°C. Region is likely to Minimum relative humidity is expected to be receive below normal rainfall, normal maximum temperature Min. RH around 43-70 %. and normal minimum temperature during subsequent one-week th th Winds will mainly blow from Easterly i.e during 05 of May to 15 of May, 2021. direction on 05th of May, from South Easterly direction on 06th of May and from Wind South Easterly direction during 07th to 09th of May with expected speed of 8.5-10.2 km hr-1. KALIMPONG KALIMPONG Days Rainfall Max. Min. Relative Possibility of moderate rainfall during (mm) Temp Temp Humidity 05th of May to 09th of May have been o o Rainfall ( C) ( C) predicted. In coming five days total Friday 0.0 26-27 13-14 65-95 rainfall 63.00 mm is expected. Saturday 5.6 Possibilities of cloudy/over cast sky on Sunday 8.4 th th Cloud 05 & 06 of May and mainly cloudy Monday 0.0 th th Weekly rainfall & temperature forecast: Cover sky during 07 to 09 of May are expected. According to Extended Range Forecast (ERF) generated by Max. Maximum temperature is expected to be th IMD, for West Bengal & Sikkim subdivision from 05 of May Temp. around 21.0°C to 24.0°C. to 15th of May, 2021; the weekly rainfall forecast is 6.76 mm, Min. Minimum temperature is expected to be Normal is 9.33 mm & % DEP is -27.57. The weekly maximum Temp. around 13.0°C to 14.0°C. temperature forecast is 31.74°C, normal is 31.13°C & anomaly Maximum relative humidity is expected is 0.62°C. The minimum temperature forecast is 20.93°C, Max. RH normal is 20.74°C & anomaly is 0.19°C. Region is likely to to be 75-89 %. Minimum relative humidity is expected receive below normal rainfall, normal maximum temperature Min. RH and normal minimum temperature during subsequent one-week to be around 36-61 %. i.e during 05th of May to 15th of May, 2021. Winds will mainly blow from South Easterly direction during 05th, 06th, 08th Wind & 09th of May and from Southerly direction on 07th of May with expected speed of 5.5-7.4 km hr-1. Part II: Agroclimatic Zonewise Agricultural/Agro meteorological Advisories Northern Hill Zone MAJOR STAGE PEST & ADVISORY CROPS DISEASES General As per NOAA/VIRS/BLENDED NDVI composite ending on week no.17 (23.04.2021 to 29.04.2021) over agricultural region of Darjeeling & Kalimpong district, the agricultural vigor is moderate and as per the SPI for the period 01st April to 28th April, 2021 the region was mildly dry. In upcoming five days total rainfall of 74.0 mm is predicted for the regions of Darjeeling district and 63.0 mm for Kalimpong district regions.Irrigation, fertilizer application and spraying of agricultural chemicals should be withheld during rainfall. Use MEGHDOOT app for Weather & Agro Advisory Bulletin. (Android: https://play.google.com/store/apps/details?id=com.aas.meghdoot). Clean the field to ensure proper pollination without disturbing Large Flowering bumble beehives. Roughing of off type, diseased plants and Cardamom handpicking and destruction of leaf caterpillar in mass along with leaves. Vegetative Mandarin and Avoid water stagnation in orchards, maintain proper drainage -- Orange fruiting channels. stage Maintained proper drainage channels in the fields. Regular scouting and monitoring of the field should be done to keep an Fall eye on the incidence of disease or pests, especially Fall Army Worm (FAW). Maize After Army sowing Worm The FAW feeds on the leaves of the maize crop, feeding causes ragged-edges, round to oblong holes on leaves. To manage this pest spray EMAMECTIN Benzoate 5 SG @ 0.4 gram or SPINOSAD 45 EC @ 0.3 ml after mixing in 1 liter of water. Hot water treatment of rhizome (510C) for 10 minutes should be done to control the seed-borne inoculums of rhizome rot & wilt Rhizome rot disease complex before sowing of rhizomes. Plant spacing should Ginger Sowing & Wilt be 25 cm X 30 cm. FYM should be applied @ 10 t/ha. NPK should disease be applied @ 60:90:90 kg/ha. Planting should be done in a complex raised bed (1ft.) to avoid water stagnation and maintained a proper drainage system. Transplanting should be started in raised bed minimum up to the Round Chilli height of 1feet. (Dalley Transplanting Maintain proper drainage channel to prevent water stagnation at Khorsani) the time of rain. If the chickens are only being fed with maize/rice & kitchen wastes, add protein supplements, i.e. soybean, azolla etc. Animal From the pre-laying period and throughout the egg-laying period Husbandry provide Vitamin D supplements once a month and Calcium (Chicken) solutions with water. (Calcium soln should be given three days after Vit-D supplements). Terai-Teesta Alluvial Zone Amfu Pundibari Part I: Weather Districtwise significant Past Weather in different District level Weather Forecast for different agroclimatic zones agroclimatic zones for the period 30/04/21 to 03/05/21 for the period 05/05/21 to 09/05/21 Terai-Teesta Alluvial Zone COOCHBEHAR COOCHBEHAR Days Rainfall Maxi Mini Relative • Mainly cloudy to Cloudy sky from 5th to (mm) Temp Temp Humidity 9th May is expected. (oC) (oC) (%) th th • Moderate rainfall from 5 to 9 May is Friday 0.0 34- 20- 60-96 expected. Saturday 0.3 35 22 • The average wind speed of 12-16 km/hr th th Sunday 23.4 from 5 to 9 May is expected. Monday 0.0 • The maximum temperature is expected to be around 26°C-29°C and minimum temperature is expected to be 20°C - 21°C. • The maximum and minimum relative humidity is expected to be 88-92 % and 48-79 % respectively. NORTH DINAJPUR NORTH DINAJPUR Days Rainfall Maxi Mini Relative • Mainly cloudy to Cloudy sky from 5th to (mm) Temp Temp Humidity 9th May is expected. (oC) (oC) (%) th th • Moderate rainfall from 5 to 9 May is Friday 0.0 32-35 15-21 30-81 expected. Saturday 0.0 • The average wind speed of 14-21 km/hr th th Sunday 0.0 from 5 to 9 May is expected. Monday 0.0 • The maximum temperature is expected to be around 31°C-32°C and minimum temperature is expected to be 23°C - 24°C. • The maximum and minimum relative humidity is expected to be 77-89 % and 34-53 % respectively. ALIPURDUAR ALIPURDUAR Days Rainfall Maxi Mini Relative • Mainly cloudy to Cloudy sky from 5th to (mm) Temp Temp Humidity 9th May is expected. (oC) (oC) (%) th th • Moderate rainfall from 5 to 9 May is Friday 0.0 30- 20-21 40-95 expected. Saturday 0.0 36 • The average wind speed of 8-9 km/hr th th Sunday 11.2 from 5 to 9 May is expected.