Cumbu ( Pennisetum glaucum (L) R. Br. )
Irrigation to the Seed Bed
| i. | Provide one inlet to each unit of 6 plots to allow water in the channels. | |
| ii. | Allow water to enter the channel and rise up in it. Turn off the water when the raised bed is wet. | |
| iii. | Irrigate as per the following schedule. | |
| Light Soil | Heavy Soil | |
| 1st | immediately after sowing | Immediately after sowing |
| 2nd | on 3rd day after sowing | On 3rd day after sowing |
| 3rd | on 7th day after sowing | On 9th day after sowing |
| 4th | on 12th day after sowing | On 16th day after sowing |
| 5th | on 17th day after sowing |
Provide one inlet to each unit of 6 plots to allow water in the channels.
ii.
Allow water to enter the channel and rise up in it. Turn off the water when the raised bed is wet.
iii.
Irrigate as per the following schedule.
Light Soil
Heavy Soil
1st
immediately after sowing
Immediately after sowing
2nd
on 3rd day after sowing
On 3rd day after sowing
3rd
on 7th day after sowing
On 9th day after sowing
4th
on 12th day after sowing
On 16th day after sowing
5th
on 17th day after sowing
Main Field
Forming Ridges and Furrows/beds
i. Form ridges and furrows (using 3 ridges) 6 m long and 45 cm apart. If pulses are intercropped, form ridges and furrows 6 m long and 30 cm apart. ii. If ridge planting is not followed, form beds of the size 10 m2 or 30 m2 depending upon water availability. iii. Form irrigation channels. iv. To conserve soil moisture under rainfed condition, sow the seeds in flat and form furrows between crop rows during intercultivation on third week after sowing.
Water Management
| STAGES | Days after transplantation/sowing | |
| Transplanted Crop | Direct Sown Crop | |
| Light Soils | ||
| i. Germination | 1st day after transplanting | 1st day after sowing |
| 4th day | 4th day | |
| ii. Vegetative phase | 15th Day | 17th day |
| 28th day | 30th day | |
| iii. Flowering phase | 40th day | 42nd day |
| 52nd day | 55th day | |
| 65th day | 68th day | |
| iv. Maturity phase | 77th day | 79th day |
| Total | 8 irrigations | 8 irrigations |
| Heavy Soils | ||
| i. Germination | 1st day after planting | 1st day after sowing |
| 4th day | 5th day | |
| ii. Vegetative phase | 15th day | 15th day |
| 28th day | 30th day | |
| iii. Flowering phase | 42nd day | 45th day |
| 54th day | 57th day | |
| iv. Maturity Phase | 66th day | 70th day |
| Total | 7 irrigations | 7 irrigations |
NOTE: This is only a guideline and the irrigation schedule is to be adjusted depending upon the prevailing weather conditions.