A. Properties of butachlor Chemical structure
Chemical class Chloroacetanilide Chemical name [N-(butoxymethyl)-2-chloro-N-(2,6-diethylphenyl)acetamide] Molecular formula C17H26ClNO2 Molar mass 311.85 g・mol−1 Solubility in water 20 mg l−1 (20˚C) Vapour pressure 1.8 × 10−6 mm Hg (25˚C) LD50 1740 mg・kg−1 (oral, rat) | |||
B. Soil properties | Laterite | Soil type coastal | Alluvial |
Water holding capacity (%) | 30.0 | 54.0 | 49.0 |
pH (1:2.5) | 5.5 | 6.7 | 7.7 |
Electrical conductivity (dsm−1) | 0.06 | 1.55 | 0.48 |
Cation exchange capacity [c mol (p+) Kg−1] | 9.1 | 4.7 | 16.9 |
Total nitrogen (%) | 0.03 | 0.11 | 0.07 |
Available nitrogen (%) | 0.0015 | 0.031 | 0.0196 |
Available Phosphorus (ppm Olsen P) | 4.3 | 60.0 | 17.1 |
Organic carbon (%) | 0.49 | 0.64 | 0.58 |
C:N ratio | 17.5:1 | 5.7:1 | 8.5:1 |
Mechanical analysis |
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Sand (%) | 72.2 | 17.6 | 22.2 |
Silt (%) | 8.4 | 35.8 | 35.4 |
Clay (%) | 19.4 | 46.6 | 42.4 |
Ca [c mol (p+) kg−1] | 2.5 | 8.2 | 10.4 |
Mg [c mol (p+) kg−1] | 0.6 | 2.3 | 1.0 |
Origin | Regional Research Farm, Jhargram, West Medinipur | No. 1 Farm, ICAR, Canning, 24 Pgs (S) | Univ. Research Farm, Mohanpur, Nadia |
Soil taxonomy | Typic Haplustalf | Typic Haplaquept | Typic Haplaquent |