Agriculture
Home | Seasons & Varieties | Tillage | Nutrient Mgmnt | Irrigation Mgmnt | Weed Mgmnt | Crop Protection | Cost of Cultivation | Photobank
Weed Management :: Rice

Transplanted Puddled Lowland Rice
Major Weeds:
Grasses
Echinochloa colona Echinochloa crus-galli Chloris barbata_rice
Echinochloa colona Echinochloa crus-galli Chloris barbata
Panicum sp rice Cynodon dactylon rice leptochloa  
Panicum sp Cynodon dactylon Leptochloa chinensis  
Image Source: www.agritech.tnau.ac.in
Broad leaved weeds
Ammania baccifera Asteracantha longifolia Centella asiatica
Ammania baccifera Asteracantha longifolia Centella asiatica
Commelina benghalensis Cyanotis axillaris Eclipta prostrata
Commelina benghalensis Cyanotis axillaris Eclipta prostrata
Marselia quadrifolia Monochoria vaginalis Nastridium indicum
Marselia quadrifolia Monochoria vaginalis Nastridium indicum
Phyla nodiflora Phyllanthes niruri Rotala densiflora
Phyla nodiflora Phyllanthes niruri Rotala densiflora
Ruellia tuberose Sonchus oleraceus Sphaeranthus indicus
Ruellia tuberose Sonchus oleraceus Sphaeranthus indicus

Sedges
Cyperus difformis Cyperus iria Fimbristylis milliacea
Cyperus difformis Cyperus iria Fimbristylis milliacea
Image Source:
www.agritech.tnau.ac.in,
Dr.R.Jagannathan,
Professor of Agronomy,
TNAU, Coimbatore-3.

Mainfield:
Weed management

    Any pre emergence herbicide has to be mixed with 50 kg of dry sand on the day of application (3 - 4 DAT) and applied uniformly to the field with thin film water on 3rd DAT. Water should not be drained for next 2 days from the field (or) fresh irrigation should not be given.
  • Pre emergence application (PE) of Pretilachlor @ 750 g/ha at 3 DAT followed by early post emergence application of Chlorimuron methyl + Metsulfuron methyl @ 4 g/ha on 25 DAT.
  • PE Pyrazosulfuron ethyl @ 20 g ha-1 on 3 DAT + Hand weeding (HW) on 45 DAT.
  • PE butachlor 0.75 kg ha-1 + bensulfuron methyl 50 g ha-1 on 3 DAT + HW on 45 DAT
  • PE butachlor 0.75 kg ha-1 + bensulfuron methyl 50 g ha-1 on 3 DAT followed by mechanical weeding on 45 DAT.
  • PE application of Butachlor @ 1.0 kg /ha on 3 DAT + Finger type single row or double row rotary weeder weeding on 45 DAT.
  • Early POE application of Bispyribac sodium 40 g ha-1 (2-3 leaf stage of weeds) + Hand weeding on 45 DAT.
  • Post emergence application (POE) of 2,4-D sodium salt 1.25 kg/ha on three weeks after transplanting.


Updated on Jan 2023
 
| Home | Seasons & Varieties | Tillage | Nutrient Management | Irrigation Management | Weed Management | Crop Protection | Cost of Cultivation |

© All Rights Reserved. TNAU 2008 - 2023.