Weed management in wheat

weed management in wheat

1. Weed Management in Wheat

By: M. Ghous
2014-uam-04

2. Wheat

Technical Name;
Triticum aestivum
Origin and
History;
First grew in the
Middle East,

One of the first
plants cultivated
about 11,000
years ago.
4,000 B.C. wheat
farming spread to
Asia, Europe and
North
Africa
In 1834, Cyrus
McCormick, an
American
invented a
reaping
machine.
In 1834, a
threshing
machine
was also
invented

5. Weed
Undesirable plant in the field..
Global basis 35% cro loss
3% crop loss is due to weeds ..
Also effect the quality of wheat
..
Act as a causative agent of
disease..
Loss of water and fertilizer ..

6. Weed control measures..

Weeds may be controlled in cropland through cultural, mechanical and chemical means.
Judicious use of these methods individually or in combination can effectively manage weeds
without causing economic loss or environmental harm. Selecting the proper management
strategy depends largely on the target weed(s) and the infestation level.
The type of crop will also play a major role in determining the timing of mechanical measures.
•Use weed-free seed to protect against weed infestations in the row and the introduction of new
weed species.

• Thoroughly clean harvesting equipment before moving from one field to the next, or require
custom harvesters to clean their equipment before entering the field.

• In conventional tillage systems, use mechanical tillage or preplant burndown herbicides to
remove initial weed flushes before planting. This will reduce or eliminate the potential for continued
infestation.

• Use of Bar harrow in early 30-40 days.

• Due to burning of crop residues seed of weeds are destroyed ..
• Don’t fed to animals
• Germination rate must be 85% if we use 5-10% seeds more than recomended seed rate then weed
growing rate is less.

7. •Rotate crops that physically outcompete certain weeds, resulting in their gradual decline.
Remove light or spotty infestations of weeds by hand hoeing or spot cultivation to prevent weed
seed production and the spread of rhizomes or roots. When plowing perennial weeds, take care
to prevent the transport and spread of plant parts to other areas of the field.
• Employ integrated weed management strategies. Use herbicides only when necessary, and
combine their use with mechanical, cultural or biological methods.

• Rotate or mix herbicides with different modes of action. If possible, rotate crops where
herbicide rotations are feasible.

• Scout fields regularly for resistant weed populations, and control the weed escapes (treat them
as you would a newly established invasive species).

• Plant weed-free wheat seed.

• Clean tillage and harvest equipment to prevent the spread of resistant species.

•Use of Daab method in early and mid sowing

•Use of fertilizer ,water ,weedicides on time

8. Types of Weeds
Broad leave weeds
( Batho, Jungly Palik, Jangli Sarsoon,
Karund, Leh, Chatri, Dhodak, Shahtra,
Sengi, Maina, Pohli, Rewari, etc)
Narrow leave weeds
(Dumbi Sitti, Wild oat, Javi,etc)

9. Types of weeds according to harmfulness
More Harmfull weed
Dumbi siti,Jangli jai,Bathu,Lehli, billi boti,sengi,jangli mater,shahtara etc
Moderate ---------
Piyaz,lashkani boti ,rewari ,krund,dumb ghass etc
Less -------------
Jangli sarso,chandani boti,dranik,rattan joot,kasni, etc

10. Weeds of wheat

11. Weeds of wheat

14. Sowing Time
Early Sowing 25 Oct – 10 Nov

Mid Sowing 10 Nov – 30 No

Late Sowing Upto 15 December

15. Land Preparation




Land Preparation
Cultivate the fallow land 4-5 times before sowing
Use land leveler if required
Split the field into small portions before rouni water
After rouni water at wattar conditions, use planker to preserve moisture
Use “Dab method” in early and mid season cultivation of wheat to control weeds.
If possible zero tillage method is used

16. Use of Quality Seed
Certified seed. (Punjab Seed Corporation)
Graded Seed (Through seed graders.)

Seed Rate
50 Kg. – 15
th
November.
60 Kg. – 16
th
to 15
th
December

17. #

Common Name

Trade name

Dose/Acre

Target weeds

1

Isoproturon +
Carfentrazone Ethyl

Affinity 800 gm
Narrow & Broad
leave Weeds

2

Isoproturon

Proton
Arelan 500 FW
Graminon 50 FW
Tolkan

800 gm
800-900 Ml
800-900 gm
800-900 gm

3

Mesosulfuron+Iodosulf
eron+ Methyl Sodium
Attlantis 3.6% WG

160 gm

Weedicide for broad & narrow leave weeds

18. # Common Name and
Trade Name
Dose/Acre Target weeds
1 Bromoxynil
+MCFA 40 EC (Brominal)
500 ml Broad Leave Weeds,
Bathu, Karund, Lahli
2 Metribuzen 70WP 100 gm All broad leaf except
Lehli, jangli Mater
and sany soil
3 Floroxyfer+
MCPA (Estarin M)
300 ml Chatri , Dhodak,
Shahtra, Sengi,
Maina
4 Pendimethalin 1500-
2000 ml
Pohli, Rewari, Billi
Booti, Laih
Chemical Control for broad leave weeds

19. #
Common Name and Trade
Name
Dose/Acre Target weeds
1 Fenoxaprop-
P Ethyl (Puma
Super)
500 ml
Narrow leave Weeds
Wild oat, Dumbi Sitti
2 Chlodinafop
Propargyl (Topic
15WP)
120 gm
Wild oat, Dumbi Sitti

3
PINAXADON (Axiel
40% EC)

330ml

Wild oat, Dumbi Sitti

Chemical Control for narrow leave weeds