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Pioneering the Future

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Growing asparagus: how to supply the asparagus with all its required nutrients

Haifa's fertilization program and fertilizers help the asparagus growers in Mexico and Peru achieve great results

 

Soil type: Sandy.
Plant density: 15,000 plants/ha (low density promotes spear thickness).
Expected yield: 5 t/Ha  on 1st crop cycle + 7 t/Ha on 2nd crop cycle.
Irrigation: Dripping.

Fertigation recommendations per crop cycle

 

N

P2O5

K2O

Mg

---------------------------------------------------Kg / ha-----------------------------------------

160

80

180

20

 

Fertilization of asparagus in Mexico, by drip irrigation

The fertigation solution is composed as follows:
120 liter of water
6 liter of phosphoric acid, or 6 Kg Haifa MAP (12-61-0)
20 Kg of ammonium nitrate
10 Kg of Multi-K (potassium nitrate, 13-0-46)
20 Kg of magnesium sulphate
80 liter of water

 

Add the following amounts of the A/M solution to the irrigation water:

 

 

Season

Liters of the a/m fertilizer solution per day per Ha

January - March

10

April - August

15

September - October

10

 

Macro elements removed by 1 ton marketable product

 

N

P

K

Ca

Mg

S

---------------------------------------------------Kg / ha-----------------------------------------

20-25

2.5-3.5

20-25

 

   

 

 

Source: Kinoch: VOLHOUBARE LANDBOU, RSA. Processed by Frans Lourens, Haifa, RSA May, 1999.

 

Plant analysis guide

Nutrient Sufficiency ranges (source: A & L, Agronomy Handbook, Ankerman & Large Eds.)

 

 

Asparagus

N

S

P

K

Mg

Ca

Na

B

Zn

Mn

Fe

Cu

Al

Mo

------------------------ % -------------------------

--------------- p.p.m ---------------
From

2.40

0.25

0.30

1.50

0.15

0.40

0.01

25

20

10

50

10

20

 
To

3.80

0.50

0.75

2.40

0.50

1.00

0.10

75

60

180

300

50

200

 

 

Plant part to sample

 

Time of Sampling Midgrowth of fern
Plant part 4’’ tip section of new fern branch

 

Plant tissue sampling procedures

 

Stage of growth Plant part
At maturity Fern from 18-30 inches up