Matching Crops (Origin)
Cotton
Fibers
List one common way seeds are identified after harvest.
Size
One example of a pest that is commonly affected crop fields in the United States.
Weeds
One classification of weeds that are controlled with some difficulty.
Noxious weeds
Define "no-till" farming.
When we do not disturb the soil at all.
Coffee
Stimulants
List a second way seeds are identified
Shape
Another example of a pest that is commonly affected crop fields in the United States.
Diseases
Another classification of weeds that is relatively easy to control.
Common weeds
Define "minimum till".
Where we are slightly disturbing the soil. Loosing and removing a few weeds.
Soybeans
Oils
List a third method used to identify seeds.
Color
Last example of a pest that is commonly affected crop fields in the United States.
Insects
The last weed that are nearly impossible to control.
Prohibited weeds
Define "conventional till".
Where we are disturbing the soil greatly up to 6-8''. Tilling all residue under.
Oak tree
Stimulants
Explain how seed purity is determined during seed identification.
By sorting a seed sample to measure the percentage of pure seed compared to weeds, other crops or debris.
How do weeds, diseases, and insects affect crop yield.
They compete with crops for water, nutrients and sunlight and cause damage to the crop and overall yield.
Define a "common weed".
A plant that grows where it is not wanted that competes for space, nutrients, water and sunlight.
List one advantage and disadvantage of no-till.
Disadvantage: can increase weed pressure and reliance on herbicide.
Wheat
Fibers
Describe how germination testing is used to identify seed viability.
To see how many grow, by showing how many seeds are alive and capable of growing.
One approach that affects all 3 pest types in a cropping system.
Integrated Pest Management
Explain how weed classification impacts management decisions on a farm.
By identifying the type of weed, farmers are making the right control method to help manage their farm efficiently.
Compare and contrast conventional till and minimum till.
1. Both prepare the soil for planting.
2. Can help incorporate fertilizer and crop residues.
Differences:
1. Conventional till: the soil is heavily plowed and turned over which can help control weeds but increase erosion and moisture loss.
2. Minimum till: fewer passes, less soil disturbance, reduces soil erosion and helps conserve moisture but may leave more weeds.