Weed control : In direct seeded rice, weed control is very important and only timely control can result in better production. The first weeding at 2-3 leaf stage is more critical and must be done. Thereafter, weeding should be done as and when required.
To ensure effective weed control in direct sown rice, chemical method of weed controls is very effective and economical. Application of Oxadiazon (Ronstar) @ 3 L/ha or Butachlor 50 EC (Machete) @ 3 L/ha should be done by mixing with 800 L/ha water before the emergence of crop and weeds (pre-emergence). The above mentioned doses are on the basis of commercial product.
Precaution: Do not apply granular formulations of herbicides in direct seeded upland rice.