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Haifa's fertilization & fertigation recommendation for growing onions with Haifa fertilizers, to achieve optimal plant nutrition and excellent yield
Growing medium: Open field. Soil type: Light. Plant population: 200,000-400,000 Plants/Ha. Expected yield: 40-60 T/Ha (85% moisture).
N
P2O5
K2O
---------------- Kg/Ha -----------------
100-200
200-300
Nutrient demand
Recommended fertilizers
MgO
Multi-K
SSP
Magnisal
-------------- Kg/Ha --------------
37
120
90
16
200
650
100
Due to shallow root system the fertilizers should be banded 8-10 cm below the seed row.
Weeks after transplanting
Nutrient requirements
Ca
AN
CN
2-6
14
0.9
40
4.5
8-12
6.5
23
50
High nutrient availability is required during the bulbification.
AN = Ammonium nitrate (34% Nitrogen) Multi-K = Potassium nitrate (13-0-46) SSP = Single Superphosphate (19% P2O5) Magnisal = Magnesium nitrate ( 10.8-0-0-+15.7MgO)
Growing medium: Open field. Soil type: Light to medium. Plant population: 800,000-1,000,000 Plants/Ha. Expected yield: 65-70 MT/Ha (85% moisture).
170-200
400-500
85
270
300
600
1400
230
Multi-K - Potassium nitrate (13% N and 46% K2O). SSP - Single Superphosphate (19% P2O5).
Ammonium Nitrate
Calcium nitrate
Developmental stage
(Kg/Ha)
30
70
150
0
60
20
Note: It is recommended not to apply nitrogen after the bulb is 2/3 of its expected final size.
Multi-K - Potassium nitrate (13% N and 46% K2O). Calcium nitrate (15.5% N and 20% Ca).
Need more information about growing onions? You can always return to the onion fertilizer & onion crop guide table of contents