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मौसम पूर्वानुमान आधारित साप्ताहिक सलाह

Weather Forecast Based Weekly Advisory

(Assumption: Fruit Pruning date - 15/09/2018)

I.        Weather Data for the Prevailing Week

Thursday (14/02/2019) Thursday (21/02/2019)

Location

Temperature

(C)

 

Possibility of Rain

 

Cloud Cover

Wind Speed

(Km/hr)

R H%

 

Min

Max

Min

Max

Nashik

13-17

31-35

No Rain

Clear

00-18

15-25

41-71

Pune

15-19

33-36

No Rain

Clear

01-19

13-20

47-69

Solapur

18-24

35-37

No Rain

Clear

02-16

15-24

42-72

Sangli

16-21

34-36

No Rain

Clear

02-18

13-25

45-71

Bijapur

18-23

34-36

No Rain

Clear

04-15

11-20

41-54

Hyderabad

18-22

33-35

Hyderabad, Zahirabad, Medchal

Drizzling- Tue

Partly cloudy to Clear

03-11

24-40

76-86

 

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:  150 days

      b) Expected growth stage of the crop: -  - Post-veraison stage after October pruning

 

III.     Water management (Dr. A.K. Upadhyay)

Expected pan evaporation: 5.0 to 7.5  mm

Amount of irrigation advised:

  1. From Berry development stage onwards till maturity, apply irrigation through drip @ 8,500 to 10,200 L/ acre/ day for Nasik and Pune region and 10,200 12,750 L/acre/day for Sangli, Solapur, Bijapur and Hyderabad region. 

  2. Remember that if the soil is at field capacity (wapsa) then donot irrigate.

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

  4. Practice mulching to keep the bunds moistened. This will reduce the salinity build up in the root zone due to evaporation of the moisture from the surface of the bund.

IV.     Soil and Nutrient requirement (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.

  3. Apply Magnesium sulpahte @10kg/acre in two splits

 

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.

 

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

 

  1. This week weather is clear and temperature is above 10 degree centigrade that means if the POP are good the sugar development will be faster in grapes in all the grape growing areas.

  2. If less sugar is the case then go for application potassium shoenite @ 2g per litre.

 

 

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

Days after pruning

Risk of diseases

Downy mildew

Powdery mildew

Anthracnose

Others (specify)

150 Low Moderate Nil Nil

 

For powdery mildew management, application of sulphur 80WP@2g/L and Ampelomyces quisqualis @6-8g/L (where there is low temperature) will be beneficial. In Solapur and Sangali regions where temperature may be higher, instead of Ampelomyces, application of Trichoderma or Bacillus may be preferred

 

 

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

Days after pruning

Risk of pests

Mealybug

Mite

Thrips/leafhopper

Caterpillar

150

High

High

Low

Nil

 

   

     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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