Harvesting

1
Harvesting Storing Grains
2
What factors determine proper time to harvest
grain crops?
3
Plant Characteristics

• Stage of Maturity
• Tendency to Lodge
• Tendency to Shatter

4
Climatic Factors

• Rainfall
• Humidity
• Temperature

5
Harvesting Methods

• Direct Combine
• Windrow - Pickup

6
What factors are used in Federal Grain Grading?
7
Federal Grain Grading

• Class
• damaged kernels
• foreign material
• other classes

8
What are the factors that affect grain quality?
9
Grain Quality Factors

• Purity of variety
• of weeds
• of diseased damaged kernels

10
What factors affect the quality of stored grain?
11
Improperly Stored Grain

• High moisture content
• Heat damage
• Rotting

12
Improperly Stored Grain

• Improper Drying
• Foreign Material present
• Insect Rodent Infestation

13
How can crop quality be maintained during harvest
storage?
14
Maintaining Crop Quality

• Harvest _at_ proper moisture content
• Maintain storage bins
• Protect against pests

15
Maintaining Crop Quality

• Provide proper ventillation
• Secure from fire wind damage
• Inspect grain frequently

16
What are the methods of drying grain?
17
Methods of Drying Grain

• Forced unheated air
• Forced heated air
• Field Drying