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Table 1 Physicochemical properties of planting soil

From: Growth, yield, genetic parameters and random amplified polymorphic DNA (RAPD) of five rice varieties treated with sodium azide and sown under different saline conditions

Parameters Units Mean
pH - 6.02
Electric conductivity μs/cm 303
Total organic carbon % 0.41
Total nitrogen % 0.13
Exchangeable acidity meq/100 g soil 0.2
Na+ meq/100 g soil 11.46
K+ meq/100 g soil 1.54
Ca2+ meq/100 g soil 15.6
Mg2+ meq/100 g soil 11.3
Cl- mg/l 1666
Available phosphates mg/l 153
Ammonium nitrogen mg/l 25.4
Nitrite mg/l 15.01
Nitrate mg/l 30.75
Sulfates mg/l 14.63
Clay % 4.4
Silt % 7.8
Sand % 87.8
Fe3+ mg/l 1011.43
Mn2+ mg/l 17.03
Zn2+ mg/l 14.76
Cu2+ mg/l 3.31
Cr+ mg/l 2.11
Cd+ mg/l > 0.001
Pb2+ mg/l 0.03
Ni+ mg/l 2.54
V+ mg/l 1.36
Total hydrocarbon content mg/l 754