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Fertilization and fertigation recommendation for growing eggplants

Haifa's fertilization program for growing eggplants with Haifa fertilizers, to achieve optimal plant nutrition & excellent yield

 

Variety: Black Oval.
Soil type: Sandy.
Plant density: 12,500 plants / Ha.
Expected yield: 51 T/Ha.
Growth period (days from seeding/planting to harvest): 200+ days.

 

 

 

Fertigation

 

Time interval (days after emergence or planting)

Nutrients requirement (Kg/Ha/Day)

N

P2O5

K2O

1 - 10

0.05

0.00

0.00

11 - 20

0.10

0.00

0.00

21 - 30

0.20

0.00

0.36

31 - 40

0.25

0.00

0.96

41 - 50

3.20

0.05

5.90

51 - 60

2.90

0.18

8.67

61 - 70

0.25

0.21

1.57

71 - 80

0.25

0.11

0.60

81 - 90

0.25

0.11

0.60

91 - 100

0.25

0.11

0.60

101 - 110

0.25

0.21

2.41

111 - 120

1.20

0.34

3.61

121 - 130

2.40

0.62

3.61

131 - 150

2.60

0.71

3.61

150 - 200

2.30

0.87

1.93

Total (Kg/Ha)

290 

75.58

457.75

 

 

Source: B. Bar-Yosef . Fertilization under drip irrigation.

Soil type:  Sandy, deep soil is preferable for this crop, due to its deep root system.
General plant density: 7,000- 13,000.

 

Variety: Black Queen.
Recommended Plant Density: 10,000 plants / Ha.

 

 

 

Base dressing

 

Manure

N

P2O5

K2O

m3 / ha

-----------------------kg/ ha---------------------

30-40

50

750

500

 

 

 

 

Top dressing / Fertigation

 

 

N

P2O5

K2O

Developmental Stage

-----------------------kg/ ha / day--------------------------

Until flowering

2.0

0.3

3.0

Until fruit-set

2.5

0.3

3.75

Until end of fruit-set

3.5

0.35

3.0

At harvest

4.0

0.2

1.5

 

 

 

 

Fertigation recommendations for tropical conditions (e.g. Thailand)

Suggested by Chatpracha Sonklien, Agronomist of Haifa Thailand.

 

Soil: Medium – Heavy.

 

 

Growth stage

Suggested fertilizers (Kg/ha/day)

Nutrients uptake (kg/ha/day)

46-0-0

12-61-0

Multi-K

N

P2O5

K2O

I

1.25

0.8

8

1.7

0.5

3.75

II

-

 

10

2.8

 

5

III

-

 

31.25

4

 

14.5

 

 

I = Initiation growth stage; II = Flowering – Fruit set; III = Development – harvesting.

 

 

 

Nutrition database for eggplant

 

 

concentration

 

Rockwool

Rockwool (reuse drainage)

Plant – dry matter (10-15%)

Parameter

Nutrient Solution

Root Environ.

Nutrient Solution

Root Environ.

Guiding Range

Deficient

Excessive
EC (mS/cm)

2.1

3.0

1.7

3.0

     
 

(mg/l)

(mg/l)

(%)

NH4

27.0

<9.0

18.0

<9.0

     
N-NH4

20.8

<6.9

13.8

<6.9

     
K in sap        

0.70-0.78

   
K

263.9

244.4

254.2

244.4

4.69-5.08

   
Ca

130.3

250.6

90.2

250.6

2.41-3.21

   
Mg

60.8

103.3

36.5

103.3

0.24-0.49

<0.24

 
N, total        

4.90

   
NO3

961.0

1271.0

728.5

1240.0

     
N-NO3

216.9

286.9

164.4

279.9

     
S, total        

0.32

   
SO4

144.2

288.3

108.1

288.3

     
P        

0.46-0.93

   
H2PO4

121.3

873.0

97.0

87.3

     
Cl              
Na              
         

mg/Kg (ppm)

Fe

0.838

0.838

0.838

0.838

83.8

   
Mn

0.549

0.385

0.549

0.385

54.9-164.8

   
Zn

0.327

0.458

0.327

0.458

45.8-65.4

 

>329.6

B

0.324

0.648

0.216

0.648

21.6 - 54.0

   
Cu

0.048

0.044

0.048

0.044

     
Mo

0.048

 

0.048

       

 

 

Important note: The a/m database was prepared to fit Dutch conditions (low transpiration and low EC of the water). Some modifications may be required to correspond to your local conditions.

 

sources:

  • N. Straver. Nutrient solutions for vegetables and flowers grown in water or substrates. 10th Ed. 1994.
  • C. de Kreij, Sonneveld C., Warmenhoven M.G. and Straver N.A. Guide values for nutrient element contents of vegetables and flowers under glass. 3rd Ed. 1992.

 

 

 

Base dressing recommendations (kg/hectare)

(In greenhouse)

 

 

N

P2O5

K2O

CaO

MgO

150

150

240

120

60

 

 

Source: recommendations of Agro-Nutrientes Especiales (ANE). (February,2000)

 

 

 

Base dressing recommendations (kg/hectare)

 

N

P2O5

K2O

CaO

MgO

140

160

210

120

30

 

 

Source: recommendations of Agro-Nutrientes Especiales (ANE). (February,2000)

 

For more information on plant nutrition and plant fertilizer visit our page: Plant Fertilizer & Plant Nutrition

For more information on NPK fertilizers, visit our Water Soluble NPK Fertilizers page, you can also read more about 

Need more information about growing eggplants ? You can always return to the eggplants fertilizer .