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 .