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मौसम पूर्वानुमान आधारित साप्ताहिक सलाह

Weather Forecast Based Weekly Advisory

 (Assumption: Fruit Pruning date - 15/10/2017)

 

I.        Weather Data for the Prevailing Week

Thursday (08/02/2018) -- Thursday (15/02/2018)

 

Location

Temperature

(°C)

 

    Possibility of Rain

 

Cloud Cover

Wind Speed

(Km/hr)

       R H%

           

Min

Max

Min

Max

Nasik

17-20

31- 33

Nashik, Ojhar, Palkhed, Dindori, Vani, Pimpalgaon Kalwan, Devla, Baswant,  Satana,  Shirdi, Loni  Niphad Drizzling – Wed,Thu

Partly Cloudy

00-12

18-25

45-51

Pune

17-20

26-34

Pune, Phursungi Narayangaon, Junnar

Loni Kalbhor, Patas, Supa, Baramati

Uruli Kanchan, Yavat – Drizzling – Wed, Thu

Partly Cloudy

00-16

18-43

38-73

Solapur

17-21

29-34

Solapur, Nanaj, Kati Vairag, Osmanabad, Tuljapur Latur, Ausa, Kasegaon,  Pandharpur, Atpadi Pangri, Barshi –No Rain

Partly Cloudy

03-21

15-42

45-63

Sangli

16-21

29-33

Sangli, Miraj, Shirguppi, Kagvad, Palsi, ,  Vite Arag Shetfal Kavatha Mahankal, Palus, Valva, Tasgaon Khanapur- No Rain

Partly Cloudy

00-21

13-33

 35-70

Bijapur

17-21

28-33

Bijapur Tikota, Telsang Chadchan  - No Rain

Partly Cloudy

03-24

14-32

39-62

Hyderabad

14-17

31-32

Hyderabad, Medchal, Zahirabad - No Rain

Partly Cloudy

02-18

23-39

57- 83

 Note: Above weather information is summary of weather forecasting given in following websites

http://www.imd.gov.in/, http://wxmaps.org/pix/prec6.html, http://www.fallingrain.com/world/IN/, http://www.wunderground.com/, http://www.bbcweather.com-weather/1269750, etc.

II.      a) Days after pruning: 116 days

      b) Expected growth stage of the crop: - Veraison stage

 

III.    Nutrition and irrigation management (Dr. A.K. Upadhyay)

Expected pan evaporation:  4.5  to 7 mm

Amount of irrigation advised

 

1.     From Berry development stage onwards till maturity, apply irrigation through drip @ 7,600- 8,500 L/acre/ day in Nasik, Pune and Hyderabad region and 11,900 L/ acre/ day in Sangli, Solapur and Bijapur regions. 

2.     Remember that if the soil is at field capacity (wapsa) then do not irrigate.

3.     Drizzling is predicted. Should not create much issue. Still check for humidity build up. If so restrict irrigation to the minimum and avoid flooding.

4.     Flooding the vineyard is not advised as it will lead to wastage of water.  Concentrate irrigation water application in the root zone only.

5.     In case berry cracking is observed withhold irrigation water application for few days.  Remove the cracked berries and check whether the soil is at field capacity (wapsa) or not. If below field capacity (wapsa) start irrigation water application.

Soil and Nutrient management (Dr. A.K. Upadhyay)

 

 

Berry Development stage:

1.     Apply Sulphate of potash or 0-0-50 @ 25 kg/ acre in 3-4 splits for next two weeks.  Total potassium application (SOP) should be approx. 60 kg/acre during this stage. 

2.     In calcareous soil, apply zinc sulphate @ 10 kg/acre along with Ferrous sulphate @ 10kg/ acre after 8-10 mm berry size and before Veraison initiation.

 

Ripening to Harvest stage:

1.     Apply Sulphate of potash or 0-0-50 @ 25 kg/ acre in 3-4 splits for next two weeks.  Total potassium application (SOP) should be approx. 60 kg/acre during this stage.  Follow this up with Magnesium sulphate @ 10 kg/acre in two splits.  Spray Magnesium sulphate in calcareous soil.

IV. Requirement of growth regulators (Dr. S.D. Ramteke)

Nil.

 

V. Canopy management (Dr. R.G. Somkuwar)

 

Old vineyard

           

During the coming week, the minimum temperature will be increasing at faster rate. This will lead to increase in demand of irrigation water at the time of berry development. Sudden change in temperature will create the balance between available resource and the actual requirement of the vine. Hence, the symptoms of mummification and rachis drying will be more prominent in the vineyard with more bunch load.

            The irrigation based on the PAN reading will help to control the problem. The application of calcium and magnesium through soil upto the period of 25-30 days before veraision will help have to avoid rachis drying.

 

VI. Disease management (Dr. S.D. Sawant and Dr. Sujoy Saha)

 

Days after pruning

Risk of diseases

Downy mildew

Powdery mildew

Anthracnose

Others (specify)

116 Nil Low Nil Nil

 

Light rains and cloudy conditions might prevail in Sholapur, Latur. Prior to bagging, powdery mildew infected berries can be removed manually followed by an application of sulphur@ 2-3g/L. Care should be taken that there are no spots on the berry due to sulphur application. Application of BCA i.e. soil drench and foliar spray of Trichoderma sp and/or Bacillus sp and foliar spray of Ampelomyces quisqualis may be continued. However if bagging is done in a “cap” like manner sulphur and BCA may be applied later.

 

Exporters are requested to adhere to the chemicals as given in Annexure 5 of NRL, ICAR-NRCG 

 

VII.    Insect and Mite management. (Dr. D.S. Yadav)

 

 

·       Vineyards may have higher mealybug infestation. Buprofezin 25 SC @ 1.25 ml/L water (PHI 45 days) is effective for management of mealybugs.

·       Mite population may start building up in the vineyards, therefore, careful monitoring is essential. Sulphur 80WDG @ 2.0 g/L water is effective against mites.

 

Crop advisory relevant to different places is prepared by experts, considering forecasted weather, crop growth stages in majority of vineyards and ground information on incidence of different conditions in different grape growing areas received from regular interaction with progressive grape growers. No claims are made on its correctness.

Usefulness of this information may be communicated to us at director.nrcg@icar.gov.in.

 

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