Table 5 Impact of tillage and weed management options on soil pH and soil organic carbon (SOC) at 60 days after sowing (DAS) of winter maize (after 3rd year).
Treatment | pH | SOC (g kg-₁) | ||
|---|---|---|---|---|
Tillage | WM | 0–15 cm | ||
T1: CT(C)-CT(M)-Fallow (NSr) | W1 | 7.37 | 6.50 | |
W2 | 7.02 | 6.53 | ||
W3 | 7.11 | 6.88 | ||
W4 | 7.12 | 6.93 | ||
T2: CT(C)-ZT(M)-ZT(Sr) | W1 | 7.17 | 7.15 | |
W2 | 7.11 | 7.17 | ||
W3 | 7.16 | 7.25 | ||
W4 | 7.11 | 7.28 | ||
T3: ZT(C) + SrR-ZT(M) + CR-ZT(Sr) + MS | W1 | 6.79 | 7.56 | |
W2 | 7.14 | 7.80 | ||
W3 | 7.12 | 7.97 | ||
W4 | 7.11 | 8.35 | ||
Tillage (Main plots) | ||||
T1: CT(C)-CT(M)-Fallow (NSr) | 7.16 | 6.71 | ||
T2: CT(C)-ZT(M)-ZT(Sr) | 7.14 | 7.21 | ||
T3: ZT(C) + SrR-ZT(M) + CR-ZT(Sr) + MS | 7.04 | 7.92 | ||
Weed Management (Subplots) | ||||
W1- Chemical weed control | 7.11 | 7.07 | ||
W2- Herbicide rotation | 7.09 | 7.17 | ||
W3- IWM | 7.13 | 7.37 | ||
W4- Single hand-weeded control | 7.11 | 7.52 | ||
SE(m)± | CD (P = 0.05) | SE(m) ± | CD(P = 0.05) | |
Tillage | 0.14 | NS | 0.15 | 0.57 |
Weed Management | 0.13 | NS | 0.19 | NS |
W at same level of T | 0.23 | NS | 0.24 | NS |
T at same level of W | 0.25 | NS | 0.25 | NS |
