Characteristics of soil pockets resulting from AerWay rolling tines
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Characteristics of soil pockets resulting from AerWay rolling tines
Song Ai, Ying Chen*
Department of Biosystems Engineering, University of Manitoba, Winnipeg, Manitoba, Canada R3T 5V6, *[email protected]
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Introduction AerWay rolling tines
Ontario-based Holland Equipment
Create pockets on the ground
Low soil disturbance Reducing runoff and
erosion
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Objectives Study pocket characteristics of AerWay
rolling tines Tillage depth Offset angle Type of tine
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Site descriptions
Clay loam soil 57% sand, 22% silt, and 21%
clay located in Piney, Manitoba
Sandy soil 75% sand, 18% silt, and 7%
clay located in Menisino, Manitoba
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Experimental design Types of rolling tines
Shatter tines and Leaf tines Offset angles
0 and 5 degree Injection depths
125 and 150 mm Number of treatments
8 Replication
4 Total number of test runs
64
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Pocket opening
Clay loam Sandy soil
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Measurements - Pocket opening and volume
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Results and discussion
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Pocket opening Clay loam
significant interaction effects penetration depth and offset angle
for both tines, pocket length increased with a greater penetration depth
pocket width increased with a greater tine offset angle
the greatest length, width, and area - 150 mm depth and 5° offset angle, regardless of the type of tine used
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Pocket opening Sandy soil
not significant interaction effects penetration depth and offset angle
pocket length was affected by penetration depth for shatter tines only
with the same penetration depth and offset angle pocket opening created by Shatter tine was
greater than that created by Leaf tine
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Pocket volume in the clay loam soil for different combinations of penetration
depth and offset angle
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Pocket volume of AerWay rolling tines in the sandy soil
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Conclusion Characteristics of the soil pockets varied
type of soil, type of tine, penetration depth, and offset angle
Shatter tines created larger pocket openings than Leaf tines
Pockets openings shorter and wider in the clay loam soil longer and narrower in the sandy soil
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Conclusion The greater penetration depth resulted in
a bigger pocket opening length The larger offset angle increased pocket
volume Pocket volumes
sandy soil smaller than clay loam soil Greater injection depth, large offset
angle, heavier soil, and Shatter tines types favour large pocket volumes and opening
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Question