Enhanced Soil Solarization against Fusarium oxysporum f. sp. lycopersici in the Uplands
Table 5
Effect of solarization with regular polyethylene (PE), double regular polyethylene (DPE), and virtually impermeable films (VIF) on chemical properties of soil.
Chemical propreties
2008
2009
Treatments
Treatments
CK
PE
DPE
VIF
LSD
CK
PE
DPE
VIF
LSD
7.3* b
7.6 a
7.7 a
7.6 a
0.21
7.3 c
7.9 a
7.8 ab
7.6 b
0.26
EC (ms)
0.4 c
0.8 b
1.2 a
0.7 b
0.25
0.4 c
0.9 b
1.3 a
1.4 a
0.14
CaCO3 (%)
22 NS***
23 NS
23 NS
22.3 NS
22 NS
23 NS
23 NS
22.3 NS
O.M (%)
2.1 a
1.7 ac
1.2 b
1.4 bc
0.38
2.2 a
1.5 b
1.2 b
1.2 b
0.42
5.2 b
13.1 a
14 a
14.4 a
4.41
5.3 b
10.7 a
12.2 a
12.1 a
4.24
28 b
48 a
48 a
49 a
9.88
27 b
42 a
46 a
47 a
11.2
P
20.1 NS
20.7 NS
24.3 NS
23.1 NS
20 NS
20 NS
21 NS
21 NS
Ca+2
2203 b
3642 a
3694 a
3890 a
396
2136 b
3542 a
3627 a
3470 a
667
Mg+2
399 b
449 a
450 a
455 a
44.5
399 b
415 b
439 b
455 a
30.6
K+
195 b
390 a
413 a
439 a
109
191 b
388 a
421 a
403 a
80.9
Na+
74 b
146 b
311 a
162 b
100
78 b
160 b
280 a
154 b
117
Fe
30 NS
32 NS
38 NS
36 NS
32 NS
30 NS
36 NS
33 NS
*Data are means of three replicates; means followed by the same letters in rows are not significantly different according Fisher LSD ().
**The concentrations of , , P, Ca+2, Mg+2, K+, Na+ and Fe are in mg kg−1.
***NS: not significant.
