Weeding

Weed control is important to prevent losses in yield and production costs, and to preserve good grain quality. Specifically, weeds

decrease yields by direct competition for sunlight, nutrients, and water
increase production costs e.g., higher labor or input costs
reduce grain quality and price
For example, weed seeds in grain can cause the buyer price to be reduced.

During land preparation, Control of weeds during land preparation is crucial to reduce the amount of weed pressure in the field. Land preparation should start 3−4 weeks before planting. Plowing destroys weeds and remaining stubble from the previous crop. Weeds should be allowed to grow before the next cultivation. In addition, a level field helps retain a constant water level that controls weeds.

During early crop growth, Weed control is critical after planting until the canopy closes. Control methods vary depending on the rice ecosystem and planting method.

Apart from manual and chemical methods, mechanical methods of weeding is an integral part of weed management system.

Weeds are controlled using a rotating hoe (rotary or conical weeder) to cultivate, uproot and bury emerging young weeds between rows of rice plants. Mechanical weeding is a part of integrated weed management that refers to the integrated use of cultural, manual, mechanical and/or chemical control methods.

Why Mechanically Weed?

Non-chemical and ecologically sound.
Less labor needed and costs less than hand weeding.
Less drudgery and stress than in hand weeding.