From: Effect of sowing time on productivity of Bt and non Bt cotton under climate change
Components | Soil properties | Methods used |
---|---|---|
Soil pH (1:2) | 8.6 | Glass electrode pH metre method (Jackson 1973) |
EC (dSm−1 at 25.8 °C) | 0.3 | Conductivity bridge method (Richards 1954) |
Available N (kg/ha) | 175.0 | Alkaline permanganate method (Subbiah and Asija 1956) |
Available P (kg/ha) | 14.0 | Olsen method (Olsen et al. 1954) |
Available K (kg/ha) | 532.0 | Flame photometric method (Jackson 1973) |
DTPA-extractable (ppm) | ||
 Zinc | 0.50 | DTPA-extractable zinc, copper, manganese, iron (Lindsay and Norvell 1978) and boron (hot water extract) (Berger and Truog 1939), respectively |
 Copper | 1.3 | |
 Manganese | 2.6 | |
 Iron | 2.3 | |
 Boron | 0.07 |