Machinery for improved crop establishment in Western Australia
Document Type
Conference Proceeding
Publication Date
1-1990
Conference Title
Agricultural Engineering Conference 1990
Place of Publication
Barton, ACT
ISBN
085825509X
Keywords
Agricultural engineering, Drills, Planting machinery, Crop improvement, Agricultural machinery
Disciplines
Other Mechanical Engineering | Soil Science
Abstract
A farm survey of wheat and lupins showed sowing depth and emergence to be highly variable. Wheat sowing depth ranged from 26 to 69 mm with plant numbers from 59 to 118 plants per square metre. Lupin depth ranged from 36 to 57 mm with plant numbers from 29 to 58 per square metre. A wheat sowing depth experiment showed short coleoptile wheats to be very sensitive to deep sowing. From this experiment it appears to be within 10% of maximum yield, wheat needs to be sown between 30 and 50 mm depth. A press wheel pressure experiment showed the minimum pressure for loamy sand was 2.4 kg per centimetre press wheel width. Sowing point sizes were compared and harrow treatments imposed in an experiment. Only a slight yield trend was noticed towards wide points and conventional leaf harrows on the sandy clay loam. Lupin emergence and yield were compared in an experiment sown with discs and tines into different stubble levels. Sowing with tines outperformed sowing with discs.
Recommended Citation
Agricultural Engineering Conference 1990: Preprints of Papers, 1, 1, 1990, 40-45
