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Intro to Plant Science ASTATE Brown-Exam 2 questions with verified solutions .
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Intro to Plant Science ASTATE Brown-Exam 2 questions with verified solutions .
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Intro to Plant Science ASTATEBrown-Exam 2 questions with
verified solutions 2024-2025
Can soybeans be a weed? - answer Yes
How do weeds compete with crops? - answer Moisture
Nutrients
Sunlight
Space
How do weeds interfere with crop plants? - answer They mess with
harvesting operations and reduce crop quality
Weeds that aren't always weeds: - answer Bermuda Grass
Johnson Grass
Morning Glory
Bermuda grass - answer A weed in crops such as cotton, corn, and
soybean but a beneficial species for turfgrass, grazing, or hay
Johnson grass - answer can be either a crop or weed
Morning Glory - answer in a corn field causes harvesting problems
Most troublesome weed in the Mid-South? - answer Palmer
Amaranth: herbicide resistant biotypes exist
, 3 Major Classes of Weeds - answer Grasses
Broadleaves
Sedges
Grasses (fibers) - answer crabgrass, Bermuda grass, Johnson grass,
broadleaf signal-grass, etc.
Broadleaves (taproot) - answer Pigweeds, cocklebur, velvetleaf,
Prickly Sida (teaweed), and many others
Sedges - answer Very small class which includes weeds such as
Yellow Nutsedge and Purple Nutsedge
Herbicides are characterized... - answer Time of Application
Mode of Action
Selectivity
Method of Application
Persistence
Method of Control
Time of Application classes - answer Pre-plant
Pre-plant incorporated
Pre-emerge
Post-emerge
Pre-plant - answer applied to the soil surface prior to planting a
specific crop
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