Nutrients

Trichocompost

Tea waste compost

Azolla compost

Phosphogypsum

pH (1:5 H₂O)

8.6

6.9

7.5

3.5

Organic C (%)

24

27

44

-

Total N (%)

1.1

1.6

4.8

-

C/N

21

17

9

-

P₂O₅ (%)

0.87

0.75

0.50

0.83

K₂O %)

1.2

1.1

3.5

S (%)

1.1

9.7

1.7

36

Mn (%)

0.86

0.9

0.16

0.97

Fe (ppm)

98

270

2600

350

Ca (%)

0.35

0.23

0.7

30