Developing implement coulters for volcanic red soils : SRDC Grower Group Innovation Project final report

Abstract

This project was specifically designed to alleviate problems faced by farming enterprises growing sugarcane in undulating red volcanic soils. Traditional disc coulters used on farming implements in undulating red volcanic soils tend to merely push the green trash blanket instead of cutting through it increasing the likelihood of increased soil erosion. By trialling and developing disc coulters currently being utilized by growers in other industries and areas the grower group wanted to cut through the trash blanket lessening disturbance leading to reduced runoff (soil and chemical). Another key outcome would be to achieve BMP (Best Management Practice) goals set within the sugarcane industry such as sub-surface fertiliser application and minimal till planting of fallow crops. With these principals in mind the group researched disc coulters leading them to a company in Dalby, Queensland. Milne industries produce the “Day Break” disc coulters that the group members decided would best suit the situation and achieve their goals. Originally the plan was to employ a local engineering firm to build a frame to house the coulters. After discussion Milne industries was chosen to supply the coulters and frame to alleviate any assembling issues. Upon receiving the disc coulters the group began a rigorous trialling and refinement phase in pursuit of the project goals.