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Table 3 Comparison of densities, macro and microelements in the six formulations: 1. Rygex, 2. Algavyt, 3. Ryzoset, 4 Manek, 5 Ecoryg and 6. Algavyt Zn/Mn

From: Physicochemical analyses of plant biostimulant formulations and characterisation of commercial products by instrumental techniques

Parameters

Rygex

Algavyt

Ryzoset

Manek

Ecoryg

Algavyt Zn/Mn

Density (g/L)

1170

1220

1050

1012

1270

1410

P total (% w/w)

0.017 ± 0.001

0.060 ± 0.002

0.040 ± 0.002

0.39 ± 0.01

0.040 ± 0.002

0.008 ± 0.001

K soluble (% w/w)

1.10 ± 0.1

4.5 ± 0.3

0.170 ± 0.015

3.1 ± 0.2

4.2 ± 0.3

0.42 ± 0.03

CaO soluble (% w/w)

0.20 ± 0.02

<0.2 ± 0.02

nd

nd

0.80 ± 0.06

nd

MgO soluble (% w/w)

0.07 ± 0.008

0.2 ± 0.02

0.057 ± 0.007

0.02 ± 0.002

0.2 ± 0.02

0.07 ± 0.01

S (% w/w)

0.03 ± 0.01

0.10 ± 0.01

0.18 ± 0.01

nd

0.20 ± 0.01

3.0 ± 0.1

Zn (% w/w)

0.003 ± 0.001

1.3 ± 0.1

1.9 ± 0.1

0.0007 ± 0.0002

0.0003 ± 0.0001

6.1 ± 0.3

Mn (% w/w)

0.0020 ± 0.0002

0.0015 ± 0.0002

0.0010 ± 0.0001

nd

0.0020 ± 0.0002

5.6 ± 0.3

Cu (mg/Kg w/w)

4.6 ± 0.2

1.0 ± 0.1

4.4 ± 0.2

3.9 ± 0.2

1.0 ± 0.1

0.9 ± 0.1

Fe (mg/Kg w/w)

100.0 ± 10.0

90.0 ± 5.0

2500.0 ± 200.0

20.0 ± 2.0

100.0 ± 10.0

40.0 ± 3.0

Na (mg/Kg w/w)

140 ± 18

270 ± 30

81 ± 15

79 ± 14

200 ± 28

180 ± 25

Cd (mg/Kg w/w)

0.22 ± 0.05

0.06 ± 0.02

0.010 ± 0.005

0.08 ± 0.02

0.31 ± 0.05

0.55 ± 0.09

  1. Extended error calculated at 95 % confidence level
  2. nd not detected