TILLAGE Flashcards by Jan Kristia Bacerra

Q

Primary tillage

A

6-36”

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Q

Secondary tillage

A

3-6”

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Q

General Purpose tillage

A

6”

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Q

6-18” primary tillage equipment

A

moldboard plow

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Q

cutting edge of moldboard

A

share

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Q

receives furrow slice

A

moldboard

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Q

counteracts pressure

A

landslide

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Q

holds share, moldboard and landslide

frame

A

frog

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Q

wing

A

gunnel

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Q

point

A

cutting edge

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Q

rotating disc bottom

A

disc plow

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Q

concave disc with sharp edges

heat hardened steel

A

disc

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Q

scrape soil

A

scraper

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Q

counteract side pressure

A

rear furrow wheel

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Q

15-25 degree with vertical

depth of soil

A

tilt angle

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Q

42-45 degree with direction of travel

width of soil

A

side/disc angle

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Q

resistance of soil to tillage

affected by speed, sharpness and plow adjustment

A

draft of plow

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Q

specific draft

3 lbs/in^2

A

sandy

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Q

specific draft

3-6 lbs/in^2

A

sandy loam

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Q

specific draft

5-7 lbs/in^2

A

silty loam

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Q

specific draft

6-8 lbs/in^2

Study These Flashcards

A

clay loam

Q

specific draft

10-11 lbs/in^2

Study These Flashcards

A

heavy clay

Q

specific draft

12-15 lbs/in^2

Study These Flashcards

A

virgin soil (clay)

Q

specific draft

12-15 lbs/in^2

Study These Flashcards

A

virgin soil (clay)

specific draft | 16-18 lbs/in^2

Gumbo, moist

specific draft | 18-20 lbs/in^2

adobe dry

increase in draft due to speed | 100%

1.6

increase in draft due to speed | 104%

2

increase in draft due to speed | 108%

2.5

increase in draft due to speed | 112%

3

increase in draft due to speed | 117%

3.5

increase in draft due to speed | 121%

4

increase in draft due to speed | 125%

4.5

increase in draft due to speed | 130%

5

increase in draft due to speed | 134%

5.5

increase in draft due to speed | 138%

6

increase in draft due to speed | 143%

6.5

increase in draft due to speed | 147%

7

increase in draft due to speed | 152%

7.5

increase in draft due to speed | 156%

8

increase in draft due to speed | 160%

8.5

increase in draft due to speed | 165%

9

increase in draft due to speed | 169%

9.5

made up of discs mounted on a common axle

disc gang

two or more sets of disc gangs

disc harrow

flanged tube inserted on common shaft between two discs to maintain disc spacing

spool

washer on one of the common shaft to absorb end thrust of the gang

bumper

contacting surfaces on which revolving part rest

bearing

2 gangs of discs placed end-to-end | throws soil in opp directions

single action disc harrow

4 gangs of discs | 2 in front 2 at rear

double action disc harrow

2 gangs of discs | one placed behind the other at an angle

offset disc harrow