| Major Weeds |
 |
 |
 |
| Cyanodon dactylon |
Dactyloctenium aegypticum |
Euphorbia hirta |
 |
 |
 |
| Phyllanthus niruri |
Cyperus rotundus |
Solanum nigrum |
 |
 |
|
| Celosia argentena |
Leucas aspera |
|
Weed Management
Irrigated Sorghum
- Apply PE Atrazine @ 0.25 kg/ha on 3-5 DAS followed by 2,4-D @ 1 kg/ha on 20-25 DAS on the soil surface, using Backpack/Knapsack/Rocker sprayer fitted with a flat fan nozzle using 500 litres of water/ha (or) if herbicides are not used, hand weeding twice on 10-15 DAS and 30-35 DAS.
- Apply PE Atrazine@0.25 kg/ha on 3-5 DAS followed by one hand weeding on 30-35 DAS.
- In line sown crop, apply PE Atrazine @ 0.25 kg/ha on 3-5 DAS followed by Twin Wheel hoe weeder weeding on 30-35 DAS.
- In transplanted crop, apply PE Atrazine @ 0.25 kg/ha on 3-5 DAT followed by 2,4-D @ 1 kg/ha on 20-25 DAT.
- If pulse crop is to be raised as an intercrop in sorghum do not use Atrazine, spray PE Pendimethalin @ 0.75 kg/ha on 3-5 DAS
Rainfed Sorghum
- Keep sorghum field free of weeds from second week after germination till 5th week. If sufficient moisture is available spray Atrazine 0.25 kg/ha as pre-emergence application within 3 days after the receipt of the soaking rainfall for sole sorghum and for sorghum based intercropping system with pulses, use Pendimethalin at 0.75 kg/ha.
- Under rainfed sorghum intercropped with cowpea as a pre- plant incorporation of isoproturba @ 0.5 kg ha-1 gave good control of weed with applied after 1st and 2nd spell of rainfall pendimethalin 1.0 kg ha-1 will be safer for both the crops.
Image Source:
-- www.agritech.tnau.ac.in
-- Dr.R.Jagannathan,
Professor of Agronomy,
TNAU, Coimbatore-3. |
