OKRA

INTRODUCTION
REQUIREMENTS
  • Soil- Sandy loam to clayey loam. 
  • Temperature- 25°C–30°C
  • pH- 6.5 – 7.0
  • Rainfall- 750mm
  • Susceptibility- Plant Viruses
IRRIGATION
  •        A pre-soaking irrigation 3-4 days before sowing is beneficial. 
  •       Irrigation is done at weekly intervals.
  •       Keep the plants well watered throughout the summer months; 1 inch of water per week is ideal, but use more if you are in a  hot,arid region.
CULTIVATION
  •       Sow three seeds per hill at 30 cm apart and then thin to 2 plants per hill after 10 days.
  •      Seeds are sown at a spacing of 45 x 30 cm.
  •       Hybrid varieties should be planted at a spacing of 60 x 45 cm.
  •        The seeds germinate in about 4-5 days.
NUTRIENT DEFICIENCY
1. DEFICIENCY OF NITROGEN
´Yellowing that starts at the tip and moves along the center of older leaves.
´Stunted growth.
´Defoliation and die back and reduction in leaf size.

TREATMENT :                                                                                                                                                             

Use

NITROKING

2-3 ml per litre

of water

Use

SPALL90

0.5ml per litre

of water
2. DEFICIENCY OF PHOSPHORUS
´Reduced growth of plant,restricted root development.
´Irregular yellow areas appear first which may spread to the whole leaf producing mottled appearance.
´Leaves may turn red or violet.
     

TREATMENT :                                                                                                                                                             

Use

NITROKING

2-3 ml per litre

of water

Use

SPALL90

0.5ml per litre

of water
3. DEFICIENCY OF POTASSIUM
´Necrosis or scorching of tip and margins in older leaves.
´ Defoliation and dieback under severe deficiency.

TREATMENT :                                                                                                                                                             

Use

NITROKING

2-3 ml per litre

of water

Use

SPALL90

0.5ml per litre

of water
DEFICIENCY OF IRON
´Interveinal chlorosis primarily on young tissue, which may turn light green to yellowish and white.
´All veins including the smallest ones remain green giving a very fine mottling/ reticulation.
  

 TREATMENT :

Use Ferric EDTA

0.5-1 gm per litre

of water.

Use NITROKING

2-3 ml per litre

of water.

                   

Use SPALL90

0.5 ml per litre

of water.

                   
DEFICIENCY OF MAGNESIUM
´In older leaves, large yellow areas appear in between lateral veins and in either side of the midribs.
´Yellowing will gradually extend towards the leaf margin.
´Severe deficiency leads to dark, necrotic spots on leaf tip and heavy defoliation.

TREATMENT : 

Use NITROKING

2-3 ml per litre

of water

       

Use Grow

2 ml per litre

of water

       

Use SPALL90

0.5 ml per litre

of water

      
DEFICIENCY OF CALCIUM
´Inhibition of bud growth.
´young leaves abnormally green.
´Leaf tips may stick together; curling/cupping of young leaves.
´Stem structure weakened, premature shedding of fruit and buds.

TREATMENT :

Use NITROKING

2-3 ml per litre

of water

         

Use BLOOM

2 ml per litre

of water

          

Use SPALL90

0.5 ml per litre

of water

         
DEFICIENCY OF BORON
´Young leaves smaller, irregular in shape, leathery texture and without chlorosis.
´characteristic death of growing tip which turns black.
´Development of lateral branches resulting in fan shaped structure.

TREATMENT : 

Use NITROKING

2-3 ml per litre

of water

        

 Use BLOOM

2 ml per litre

of water

        

Use SPALL90

0.5 ml per litre

of water

       
 
 
DISEASES

A. FUNGAL DISEASES:(i) CONTACT BASED
1. ANTHRACNOSE (Colletotrichum spp.)

  

TREATMENT :

Use PPFC

2-3 gm per litre

of water

   

Use SpAll90

0.5 ml per litre

of water

          

A. FUNGAL DISEASES:(i) CONTACT BASED
3.CERCOSPORA LEAF SPOT(Cercospora malayensis and Cercospora abelmoschi)

    

TREATMENT :

Use PPFC

2-3 gm per litre

of water

   

Use SpAll90

0.5 ml per litre

of water

          

A. FUNGAL DISEASES:(i) CONTACT BASED
4. POWDERY  MILDEW (Erysiphe cichoracearum)

    

TREATMENT :

Use PPFC

2-3 gm per litre

of water

   

Use SpAll90

0.5 ml per litre

of water

          

A. FUNGAL DISEASES:(i) CONTACT BASED
5. DOWNY MILDEW

TREATMENT :

Use PPFC

2-3 gm per litre

of water

   

Use SpAll90

0.5 ml per litre

of water

          

A. FUNGAL DISEASES:(ii) SYSTEMIC BASED
1. CHARCOAL ROT (Macrophomina phaseolina)
   

TREATMENT :

Use Fungohit

2-3ml per litre

of water

            

Use SpAll90

0.5 ml per litre

of water

            

A. FUNGAL DISEASES:(ii) SYSTEMIC BASED
2.FUSARIUM WILT (Fusarium oxysporum)

   

TREATMENT :

Use Fungohit

2-3ml per litre

of water

            

Use SpAll90

0.5 ml per litre

of water

            

B. VIRAL DISEASES
1. YELLOW VEIN MOSAIC VIRUS

TREATMENT :

Use Virohit

2-3 ml per litre

of water

         

Use virosol

2-3 ml per litre

of water

           

Use PPNP

1 ml per litre

of water

         

Use SpAll90

0.5 ml per litre

of water

           

B. VIRAL DISEASES
2. LEAF CURL VIRUS

   

TREATMENT :

Use Virohit

2-3 ml per litre

of water

         

Use virosol

2-3 ml per litre

of water

           

Use PPNP

1 ml per litre

of water

         

Use SpAll90

0.5 ml per litre

of water

           

C. PESTS:(i)CHEWING PESTS
1.SHOOT BORER (Earias vitella)
  

TREATMENT :

Use Pestohit

2-3 ml per litre

of water

           

Use PPNP

1 ml per litre

of water 

          

Use SpAll90

0.5 ml per litre

of water

            

C. PESTS:(i)CHEWING PESTS
2.BHENDI FRUIT BORER (Helicoverpa armigera)

  

TREATMENT :

Use Pestohit

2-3 ml per litre

of water

           

Use PPNP

1 ml per litre

of water 

          

Use SpAll90

0.5 ml per litre

of water

            

C. PESTS:(i)CHEWING PESTS
3.SHOOT WEEVIL (Alcidodes affaber)

  

TREATMENT :

Use Pestohit

2-3 ml per litre

of water

           

Use PPNP

1 ml per litre

of water 

          

Use SpAll90

0.5 ml per litre

of water

            

C. PESTS:(i)CHEWING PESTS
4.STEM WEEVIL (Pempherulus affinis)

TREATMENT :

Use Pestohit

2-3 ml per litre

of water

           

Use PPNP

1 ml per litre

of water 

          

Use SpAll90

0.5 ml per litre

of water

            

C. PESTS:(i)CHEWING PESTS
5. SEMILOOPER (Anomis flava)
  

TREATMENT :

Use Pestohit

2-3 ml per litre

of water

           

Use PPNP

1 ml per litre

of water 

          

Use SpAll90

0.5 ml per litre

of water

            

C. PESTS :(ii) SUCKING PESTS
1. APHID (Aphis gossypii)

  

TREATMENT :

 Use Orgomite

2-3 ml per litre

of water

           

Use PPNP

1 ml per litre

of water

          

Use SpAll90

0.5 ml per litre

of water

            

C.PESTS : (ii) SUCKINGPESTS
2. JASSID (Amrasca devastans)

  

TREATMENT :

 Use Orgomite

2-3 ml per litre

of water

           

Use PPNP

1 ml per litre

of water

          

Use SpAll90

0.5 ml per litre

of water