characteristics of soil pockets resulting from aerway rolling tines song ai, ying chen * department...
TRANSCRIPT
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]
Introduction
AerWay rolling tines Ontario-based
Holland Equipment Create pockets on the
ground Low soil disturbance Reducing runoff and
erosion
Objectives
Study pocket characteristics of AerWay rolling tines Tillage depth Offset angle Type of tine
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
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
Pocket opening
Clay loam Sandy soil
Measurements - Pocket opening and volume
Results and discussion
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
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
Pocket volume in the clay loam soil for different combinations of penetration
depth and offset angle
Pocket volume of AerWay rolling tines in the sandy soil
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
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
Question