Measuring Crop Residue (Line-Transect Method) - Landoll 1230 Series Operator's Manual

4-13 MEASURING CROP RESIDUE (LINE-TRANSECT METHOD)

Figure 4-17 Mark On Residue
Figure 4-18 Mark Off Residue
percentage of residue on the field.
4-13.1 Select a measuring tool:
4-13.2 Stretch measuring tool (tape/rope/string)
4-13.3 Look directly down on same side of meas-
Note: To effectively reduce erosion, residue
pieces must be large enough (
raindrop energy during an intense storm. Use
" diameter welding rod for visual comparison.
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4-13.4 Repeat procedure at least two more times
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%.
Figure 4-19 Counting Procedure
Use the following procedure to determine the
a. 100' tape
b. 100' rope or string marked at 1' intervals
c. 50' tape
d. 50' rope or string marked at 6" intervals
diagonally (30° - 45°) across crop rows, cov-
ering two or more implement passes.
uring tool at each mark without moving tool.
a. Count all pieces of residue,
larger, under each mark (See Figures 4-17
and 4-19).
b. Do not count residue pieces smaller than
diameter or pieces not under marks
Figures 4-18 and 4-19).
and average three figures for final count.
" diameter or
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"
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(See
") to dissipate
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4-13