Download - Weed management Systems in Field Crops
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WEED MANAGEMENT SYSTEMS FOR FIELD CROPS
Presented to
Prof Dr. Nazim HussainSir Hamid Nawaz
DEPARTMENT OF AGRONOMY
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OutlineWeed Management
Weed Management Systems
WMS in Field CropsSmall Grain CropsRow Crops
Preventive Control
Mechanical Control
Cultural Control
Biological Control
Chemical Control
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Weed Management ..?
“An environmentally sound system of farming using all available knowledge and tools to produce crops free of economically damaging, competitive vegetation.”
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Weed Management SystemsA) Small Grain Crops
B) Row Crops
C) Turf
D) Pasture & Rangelands
E) Perennial Crops
F) Aquatic Weed Sites
Field Crops
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Weed Management Systems for CropsSmall Grain Crops Row Crops
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Preventive
Mechanical
Biological
Cultural
WEED
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Weed Management System
Prevention Weed Free Crop Seeds. Weed Free Manures. Clean Harvesting equipments. Elimination of Weed infestation in
irrigation water.
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Mechanical (Small Grain Crops)
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Mechanical (Row Crops)
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Cultural Control Crop selection Rotation Variety selection Planting date Plant population Spacing Fertility Manipulation Mulching
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Mulching for weed Control
Mulches stop weed growth:By restricting the penetration of
sunlight to the soil surface
By Releasing Allelopathic Chemicals.
Reduce the germination of weed seeds
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Biological Control“Use of living organism’s viz., insects, disease organisms, herbivorous fish, snails or even competitive plants for the control of weeds is called biological control.”
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Chemical ControlThere are 4 types of herbicides:Broad Spectrum - these work on a wide variety of weeds.
Selective - these work on a narrow range of weeds.
Contact - these destroy weed tissue at or near the point of contact (they do not spread around the weed), and require even coverage in their application.
Systemic - these move through the weed's circulation system, and can be injected into the weed.
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In small Grains In Row Crops
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Integrated Weed Control System
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Thank you !Any Question ..?