4-13 MEASURING CROP RESIDUE (LINE-TRANSECT METHOD)
Use the following procedure to determine the
percentage of residue on the field.
4-13.1
Select a measuring tool:
a.
100’ tape
b.
100’ rope or string marked at 1’ intervals
c.
50’ tape
d.
50’ rope or string marked at 6" intervals
4-13.2
Stretch measuring tool (tape/rope/string)
diagonally (30° - 45°) across crop rows, cov-
ering two or more implement passes.
4-13.3
Look directly down on same side of meas-
uring tool at each mark without moving tool.
a.
Count all pieces of residue,
1
8
" diameter or
larger, under each mark
(See Figures 4-17
and 4-19)
.
b.
Do not count residue pieces smaller than
1
8
"
diameter or pieces not under marks
(See
.
Note: To effectively reduce erosion, residue
pieces must be large enough (
1
8
") to dissipate
raindrop energy during an intense storm. Use
1
8
" diameter welding rod for visual comparison.
4-13.4
Repeat procedure at least two more times
and average three figures for final count.
4-13.5
Calculate percentage residue:
4-13.6
100’ tape/rope/string: Each 1’ mark = 1%
Example: Avg. count of 36 = 36%.
- 50’ tape: Each 1’ mark = 2%
Example: Avg. count of 15 = 30%
- 50’ rope/string: Each 6" mark = 1%
Example: Avg. count of 33 = 33%.
4-13
Figure 4-17 Mark On Residue
Figure 4-18 Mark Off Residue
Figure 4-19 Counting Procedure
Содержание 1230 Series
Страница 3: ...MODEL 1230 SERIES COULTER CHISEL OPERATOR S MANUAL PURCHASED FROM DATE ADDRESS PHONE NO SERIAL NO i...
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Страница 31: ...3 19 Figure 3 42 10 10 Main Frame Assembly Layout Walking Beam Axle 12 Shank Spacing...
Страница 32: ...3 20 Figure 3 43 10 10 Main Frame Assembly Layout Walking Beam Axle 15 Shank Spacing...
Страница 33: ...3 21 Figure 3 44 10 10 Main Frame Assembly Layout 19 Folding Model...
Страница 34: ...3 22 Figure 3 45 10 10 Main Frame Assembly Layout 21 and 23 Folding Models...
Страница 36: ...NOTES 3 24...
Страница 55: ...4 19 Figure 4 28 Rockshaft Figure 4 29 Walking Beams Figure 4 30 Wheels Figure 4 31 Disc Cutters...
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