Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2008 by Universidad Católica de Valparaíso -- Chile
Vol. 11 No. 1, Issue of January 15, 2008
 


Table 5. Essential soil characteristics for Option 4: combination of different levels of nutrients, tillage and watering. (Results represent mean ± standard deviation of three replicates).


WAR
Cell

0

2

6

0

2

6

0

2

6

0

2

6

0

2

6

% Moisture by mass

Total hydrocarbon content (mg/kg)

% Organic Carbon

% Total Nitrogen

THB count (x 105 cfu/ml)

A

11 ± 1

11 ± 2

16 ± 2

15 070.2 ± 150

5290.0 ± 120

3332.4 ± 108

0.37 ± 0.05

0.30 ± 0.06

0.18 ± 0.02

0.23 ± 0.01

0.07 ± 0.006

0.04 ± 0.002

7.0 ± 0.08

14.5 ± 0.15

32.4 ± 0.18

B

14 ± 2

15 ± 1

18 ± 1

16 513.0 ± 50

4855.2 ± 110

2335.1 ± 105

0.42 ± 0.04

0.34 ± 0.02

0.21 ± 0.02

0.19 ± 0.02

0.09 ± 0.007

0.04 ± 0.003

6.8 ± 0.10

10.3 ± 0.18

20.8 ± 0.16

C

10 ± 1

13 ± 1

18 ± 2

18 388.1 ± 200

1277.0 ± 45

846.7 ± 64

0.45 ± 0.03

0.31 ± 0.06

0.20 ± 0.03

0.25 ± 0.03

0.09 ± 0.006

0.06 ± 0.003

4.5 ± 0.06

9.3 ± 0.25

15.4 ± 0.20

D

13 ± 2

19 ± 2

21 ± 1

16 110.0 ± 100

590.3 ± 60

343.5 ± 42

0.38 ± 0.05

0.29 ± 0.02

0.21 ± 0.01

0.21 ± 0.02

0.09 ± 0.007

0.07 ± 0.004

8.8 ± 0.25

17.2 ± 0.10

27.2 ± 0.15

E

12 ± 2

18 ± 1

23 ± 2

16 623.7 ± 50

294.1 ± 80

734.8 ± 65

0.50 ± 0.04

0.30 ± 0.04

0.20 ± 0.01

0.31 ± 0.01

0.10 ± 0.005

0.07 ± 0.002

6.2 ± 0.15

12.3 ± 0.06

21.6 ± 0.15

Cell: (A) 50 g of NPK + 0.5 litre of water + once-weekly tillage; (B) 75 g of NPK + 0.75 litre of water + thrice-weekly tillage; (C) 100 g of NPK + 1.0 litre of water + five times-weekly tillage; (D) 150 g of NPK + 1.5 litres of water + once-daily tillage; (E) 200 g of NPK + 2.0 litres of water + twice-daily tillage.
WAR: Week(s) after remediation.
THB: Total heterotrophic bacteria.
cfu/ml: Colony forming unit per millilitre.


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