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Iron Chelate For Root Uptake

eF

B

uC

nM

nZ

The benefits

■ Perfect iron availability for root uptake ■ Best chelate under high pH conditions up to pH 10 ■ 100% water soluble micro granules ■ Highly efficient ortho-ortho complex in

– Basafer® Plus: 83% ortho-ortho (5% out of 6% Fe) – Basafer®: 58% ortho-ortho (3,5% out of 6% Fe)

■ Two Basafer® options in different pack sizes for commercial consideration (Basafer® Plus is recommended in technically advanced farms)

Metal Ion Chelating agent Chelated metal

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

% F

e ch

elat

ed /

Fe

tota

l

pH in soil solution4 6 8 10 12 14

Basafer®Fe-EDDHA

Fe-EDTA

Difference of Fe-chelates as function of the pH

EDDHA Fe-chelates are highly stable in the soil (EDTA to be used for foliar application)

The effect

■ Iron is found in abundance in most soils but is frequently not plant-available.

■ Particularly under unfavourable pH conditions and/or the presence of bicarbonates, iron is tightly bound within the soil or water.

Fe (III) – ortho–ortho EDDHA

Fe

NH NH CH

CH

O

O O

O

CH

CH2

CO

CO

* *

Fe (III) – ortho–para EDDHA

Fe

NH NH CH

CH2

O O

O

CH

CH2

OH

CO

* *

CO

H2O

Fe Fe Fe Fe Fe

Fe Fe Fe Fe

Fe Fe Fe

FeSolid phase

Fe

Chelated and Soil solution

Rhizosphere

Aerial part of plant

Chelating agent

Fe

FeFe

Fe

Fe Fe

FeFe

FeFe

Fe

Fe

Fe

FeFe

Fe Fe Fe Fe Fe

Fe Fe Fe Fe

Fe Fe FeFe

Fe

Fe

Fe

Solid phase Soil dissolutionRhizosphere

Aerial part of plant

Fe

Iron shuttle effect:

No Basafer® Basafer®

Soil bound iron is abundant, but unavailable EDDHA chelate to carry soil bound iron into the plant

ortho-ortho complex with constantly 6 connections within the struc-ture is highly stable

■ Example: Fe++ +2OH- → Fe(OH)3 (insoluble). ■ To keep iron water-soluble a chelate (Greek: claw) complex is

required; salts like sulphates are often inefficient. ■ Complex organic molecules such as iron EDDHA chelates

develop two different complexes with different soil stability.

How to apply

■ Basafer® / Basafer® Plus can be used both as a protectant and curatively against iron deficiency symptoms (e.g. chlorosis at young leaves).

■ The product can be applied to the soil surface or used by fertigation systems like drip irrigation. ■ Iron deficiency can be induced by alkaline soil conditions (pH > 7).

Iron chlorosis in citrus

Basafer® / Basafer® Plus application per crop cycle*

Planting until maturity

grams / plant**

% Concentration First years of production

grams / plant**

% Concentration Mature treesgrams / plant**

% Concentration

Citrus 10 to 30 0.3 10 to 60 0.4 75 to 100 0.5

Table grapes 5 to 10 0.2 5 to 10 0.25 15 to 20 0.3

Apple, pear 15 to 25 0.15 20 to 40 0.2 20 to 40 0.25

Stone fruits 10 to 30 0.15 20 to 40 0.2 30 to 60 0.25

Peach 10 to 60 0.15 40 to 60 0.15 60 to 100 0.2

Avocado 5 to 10 0.15 5 to 10 0.15 15 to 20 0.2

Strawberry 200 to 400 0.15 to 0.3 200 to 400 0.15 to 0.3 200 to 400 0.15 to 0.3

Soft fruits 75 to 150 0.25 to 0.4 100 to 200 0.25 to 0.4 150 to 300 0.25 to 0.4

* product is recommended for soil application or fertigation (due to the intense colour the product is not recommended for foliar spray)** preventive application require low volumes of Basafer; Fe deficient and high pH soils require higher quantities

Trial results

Peaches, Spain: Influence on iron chlorosis at “Early Maycrest”

Mandarins, SpainMandarine var. arrufatina (Clementina), Finca Mont-Ros (Agro-Estelles) Naquera.-Valencia

10

8

6

4

2

0Iron

chl

oros

is (1

= w

itho

ut; 9

= d

ead

tree

s)

without competitor Basafer® Plus Fe-fertilizer

fertilization: 100 g/tree

Control Competitor

Basafer® Plus

5

4

3

2

1

0

Yie

ld (k

g/tr

ee)

control Basafer® Plus competitor

1

0.8

0.6

0.4

0.2

0

-0.2

-0.4

Gre

en S

core

(c0

to 5

)

control Basafer® Plus competitor

Green Score Difference between 1st and last evaluation

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Product Composition Characteristics Packing Use

Basafer® Plus 6.0% total Iron (Fe) 5.0% Iron (Fe) chelated by ortho-ortho EDDHA

Chelated iron fertilizer (EDDHA) with 6% Fe. For the preventive and curative treatment of iron deficiency (chlorosis) in agricultural and horticultural crops.

1 kg (10 x 1 kg) 5 kg (3 x 5 kg) 20 kg 1 kg: 640 kg per pallet 6.4 mt per 20” FCC 12.8 mt per 40” FCC

For detailed recommen-dations please contact your local COMPO EXPERT dealer / agent.

Basafer® 6.0% total Iron (Fe) 3.5% Iron (Fe) chelated by ortho-ortho EDDHA

1 kg (10 x 1 kg) 5 kg (3 x 5 kg) 20 kg 1 kg: 640 kg per pallet 6.4 mt per 20” FCC 12.8 mt per 40” FCC

Control Basafer® Plus Competitor

Primroses, Germany

without competitor Basafer® Plus Fe-fertilizer

Untreated Basafer® Plus (20 g/plant)

Vine Grapes, Ringsheim, Germany

www.compo-expert.com

COMPO EXPERT GmbHKrögerweg 1048155 MünsterPhone: +49 251 297981-000Fax: +49 251 297981-111E-mail: info@compo-expert.com