Impact of Fungicides Chlorothalonil and Propiconazole on Microbial Activities in Groundnut (Arachis hypogaea L.) Soils

Table 1

Physico-characteristic of the soils.

Properties	Black clay soil	Red sandy loam soil
Sand (%)	68.3	53.3
Silt (%)	22.7	27.1
Clay (%)	09.0	19.6
pH^a	7.7	6.6
Water holding capacity (mL g^−1 soil)	0.47	0.27
Electrical conductivity (m.mhos)	254	238
Organic matter^b (%)	1.44	0.72
Total nitrogen^c (%)	0.084	0.042
NH4+-N (μg g^−1 soil)^d	7.96	7.01
NO2^−-N (μg g^−1 soil)^e	0.48	0.32
NO3^−-N (μg g^−1 soil)^f	0.98	0.76

where, ^a1 : 1.25 = soil : water slurry.
^bWalkley-Black method [24].
^c Micro-Kjeldahl metod [24].
^dNesslerization method [24].
^eDiazotization method [25].
^fBrucine method [26].