Table 1.
Description of treatments/tillage and crop establishment practices adopted in the rice-wheat-greengram rotation from 2015-16 to 2018-19.
| Parameter | Crop | RPTR-BCW-ZTG | LPTR-CTW-ZTG | CTMTR-ZTW-ZTG | ZTMTR-ZTW-ZTG | SRI-SWI-ZTG | CTDSR-ZTW-ZTG | ZTDSR-ZTW-ZTG |
|---|---|---|---|---|---|---|---|---|
| T1 | T2 | T3 | T4 | T5 | T6 | T7 | ||
| Tillage | Rice | Cultivator: 2 passes (dry tillage: DT) | Zero-till (flooding before transplanting) | Cultivator: 2 passes (DT) | Cultivator: 2 passes | Zero-till | ||
| Rotavator: 1 pass (wet tillage: WT) | Rotavator: 1 pass (WT) | |||||||
| Wheat | Cultivator: 2 passes | Zero-till | Cultivator2 passes: | Zero-till | ||||
| Rotavator: 1 pass | Rotavator: 1 pass | |||||||
| Greengram | Zero-till | |||||||
| Crop establishment | Rice: | |||||||
| Transplanting/ Seeding | Manual | Manual | Machine | Machine | Manual | Drill seeding | Drill seeding | |
| Seedling age | 25 days | 25 days | 18 days | 18 days | 12 days | – | – | |
| Spacing (cm) | Random | 20 × 15 | 23 × 14 | 23 × 14 | 25 × 25 | 22.5 cm row spacing | 22.5 cm row spacing | |
| Wheat | Broadcasting | Drill seeding | Drill seeding | Drill seeding | Manual | Drill seeding | Drill seeding | |
| Greengram | Drill seeding with Happy Seeder | |||||||
| Residue management |
Rice | ∼30 % mixed | ∼30 % retained | ∼30 % mixed | ∼30 % retained | |||
| Wheat | ∼30 % retained | |||||||
| Greengram | 100 % incorporated | |||||||