Element

Cont.

350 ppm Cu

Cont. + IAA

350 ppm Cu + IAA

Aluminum

8.70

7.40

12.40

11.30

Iron

13.60

10.40**

24.20

14.20**

Zinc

2.70

2.50

4.10

3.60

Boron

2.30

1.90

2.70

2.50

Manganese

1.70

2.02

2.30

2.50

Cadmium

0.01

0.01

0.01

0.01

Cobalt

0.02

0.02

0.02

0.02

Lead

0.2

0.01

0.2

0.1

Chromium

0.2

0.20

0.22

0.23

Copper

1.7

1.9

2.20

2.30