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| 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 |
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) |
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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. |
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