Joint International Conference on Long-term Experiments ...

visible at lower soil layers does not mean risks in production and in food safety in the
case of the examined cultivated plants, partly because of the relatively low
concentrations, partly because we made additional product (grain and tissues of animals
fed on these forages) analysis on residues and we have not found detectable amount of
pesticide residues in this products.
Table 1: Element content of upper ploughed soil layers of examined fields (mg/kg)
nationwide
element Nádudvar Hajdúböszörmény Bakonszeg Sárrétudvari Szentes average*
P 1032 887 881 1009 918 535
K 4443 2858 3265 3145 3658 2952
S 123 118 138 152 159 128
Zn 76,4 76,4 72 73 70 47
Cu 18 14 12 15 12 18
Ni 20 19 19 20 19 14
Mn 762 704 608 536 643 457
Cd 0,957 0,92 0,94 0,93 0,96 0,81
Pb 24 22 22 21 20 14
* average of TIM (Hungarian Soil Information and Monitoring System) samples
Table 2: Pesticide residues of different soil levels of examined fields, 2005 (μg/kg)
Depth Sum of HCH Sum of drins
Sum of DDT /
DDD / DDE
Hajdúböszörmény
(maize)
0-20
100-130
200-235
0, 024397
35, 75
24, 45
0, 002113
0, 72
0, 84
0, 071583
11, 77
8, 97
0-20 0, 025776 0, 00248 0, 009218
Nádudvar (maize) 100-130 32, 95 4, 94 2, 41
200-235 30, 69 3, 6 1, 92
0-20 0, 00764 0, 00017 0, 01774
Szentes (wheat) 100-130 10, 26 0, 24 0, 58
Sárrétudvari
(wheat)
Bakonszeg
(meadow)
Látókép (bio)
200-235 10, 12