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Foliar fertilization of rice using Multi-rice

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Our recommendation for using Multi-rice fertilizer, either sprayed by airplane or by tractor operated sprayer

Treatment timing

Three treatments are recommended, timed as follows:
Physiological stageSpraying by Airplane
 Total rate12Kg/Ha Multi-Rice
I. Tillering Spray volume100 liter/Ha
 Solution concentration (w/v)12 %
30-35 days after sowing (for short season varieties - 90-100 days, spray at about 15 days intervals)
 Physiological stage
II. 1 week before flowering.
45-50 days after sowing
  

Tractor operated sprayer

Total rate12 Kg/Ha Multi-Rice
Spray volume400 liter/Ha
Solution concentration (w/v)3 %

Spraying by Airplane

Same as above

Tractor operated sprayer

Same as above

Physiological stage

Spraying by Airplane

III. 1 week after flowering.
60-65 days after sowing

Same as above

Tractor operated sprayer

Notes:

Adjuvant/surfactant are always recommended (As generally practiced for foliar sprays).


Compatibility. Multi-K is highly compatible with a wide range of pesticides and growth regulators, commonly used in field-crops. It is also compatible with other plant nutrients used for correction of deficiencies (Mg, Zn, etc.). Nevertheless, it is advisable to confirm compatibility by mixing a sample of the spray materials at the recommended concentration, before adding to the mix tank.


Safety Measures. Spray should be applied when the plants are fully turgid, and should be avoided during hot and dry weather. Best results are obtained when spraying in the late evening or early morning. It is recommended that this mixture will be sprayed on a small test plot, a few days prior to the comprehensive commercial treatment, so as to assess whether any adverse effects may occur.

Macro elements removed by 1 ton grain

N

P

K

Ca

Mg

S

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

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.)

Rice

N

S

P

K

Mg

Ca

Na

B

Zn

Mn

Fe

Cu

Al

Mo

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

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

2.20

0.20

0.30

1.80

0.20

0.25

0.01

8

20

30

35

6

20

 

* Plant tissue sampling procedures:

Stage of growthPlant Part

Rice – Mineral analysis values

 

Leaf blades

Nutrient

Average value

Critical level

 

(%)

N

3.20

1.20

S

0.25

0.13

P

0.33

0.15

K

1.65

0.85

Mg

0.13

0.07

Ca

0.29

0.14

Na

0.03

 

 

(ppm)

Fe

120

70

Al

60

 

Mn

145

50

B

5

 

Cu

6

2

Zn

19

15