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Table 2 Chemical and physical characteristics of different formulations: dry matter (DM), carbon, total N, ash, lipid, carbohydrate, pH, electrical conductivity (EC) and carbon:nitrogen ratio (C:N)

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

Formulation

DM (% w/w)

Carbon (% w/w)

Total N (% w/w)

Ash (% w/w)

Lipid (% w/w)

Carbohydrate (% w/w)

pH

EC (dS/m)

C:N ratio

Rygex

39.7 ± 0.2

19.1 ± 0.2

5.2 ± 0.1

1.5 ± 0.2

<0.1

5.7 ± 0.2

7.5 ± 0.1

9.4 ± 0.1

3.7

Algavyt

46.8 ± 0.2

20.2 ± 0.2

9.1 ± 0.1

6.4 ± 0.2

<0.1

35.3 ± 0.2

11.1 ± 0.1

16.0 ± 0.4

2.2

Ryzoset

20.1 ± 0.2

8.8 ± 0.2

0.7 ± 0.1

2.4 ± 0.2

<0.1

13.3 ± 0.2

3.1 ± 0.1

5.2 ± 0.1

12.6

Manek

62.2 ± 0.2

39.3 ± 0.2

0.2 ± 0.1

3.6 ± 0.2

56.1 ± 0.2

1.2 ± 0.2

8.5 ± 0.1

0.4 ± 0.1

196.5

Ecoryg

50.9 ± 0.2

22.7 ± 0.2

3.0 ± 0.1

5.5 ± 0.2

<0.1

26.7 ± 0.2

5.2 ± 0.1

19.8 ± 0.5

7.6

Algavyt Zn/Mn

40.4 ± 0.2

12.5 ± 0.2

5.1 ± 0.1

15.4 ± 0.2

<0.1

18.1 ± 0.2

6.2 ± 0.1

20.3 ± 0.5

2.5

  1. The first six parameters are expressed on a dry weight basis. Extended error calculated at 95 % confidence level