Weed Management :: Soybean

Major Weeds

Amaranthus spinosus	Brachiaria reptans	Cleome gynanadra

Phyllanthus niruri	Trianthema portulacastrum

Weed Management:

Weed Free Soybean

First 6 to 7 weeks after seeding is the critical period for crop weed completion. Clean cultivation is, therefore, essential during the critical period.

Cultural Management: Since soybean is sown in rows, bullock drawn harrows can be used for controlling the weeds. Two intercultivations, first at 20-30 DAS and the second around 45 DAS along with manual weeding can maintain the soybean field weed free for economic yield

Use of Herbicides: A wide range of soil and foliage applied herbicides provides moderate to excellent of wide range of weeds infesting soybean crop.

PRE herbicides	PPI herbicides
Fluchloralin(1.0-1.5)	Alachlor(1.5-2.0)
Acetochlor(1.0-1.5)	Clomazone(0.75-1.5)
Vernolate(1.5-2.5)	Metribuzin(1.0-1.5)
Trifluralin(0.75-1.0)	Chlorimuron ethyl(0.004-0.008)
	Metolachlor(1.0-1.5)
	Trifluralin(1.5-2 .0)
	Lactofen(1.0-1.5)
	Oxyfluorfen(1.0-1.5)
	Imazethapyr(0.10-0.50)
	Imazethapyr(50-60g)

Combination of Trifuralin and alachlor or Triallate(1.0-1.5) applied PPI is the best for season long weed control. PRE combination of Pendimethalin(0.5 -0.75) and Imazethapyr(50-75g) is also equally effective for weed free environment.

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