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Grain losses in the field when windrowing and combining wheat
Authors: Dodds, M. E.
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Download file: https://library.csbe-scgab.ca/docs/journal/8/8_1_31_ocr.pdf
Published in: CBE Journal » CBE Journal Volume 8 (1966)
Download RAW file: https://library.csbe-scgab.ca/docs/journal/8/8_1_31_raw.pdf
DOI:
Description: Losses of grain in the field, which occur with the use of the header, combine and windrower, have caused much concern to farmers and research workers. Bracken (2) reported that the combine method of harvesting was more efficient than the header and thresher method. Hardy (5) stated that, since uniform maturity and low kernel moisture content were necessary for the straight combining of grain, a loss of grain could result from adverse weather conditions during the period between the binding and the straight combining stages. Many other re search workers (4, 6, 7, 10, 11) suggested that the windrower should be used as a harvesting implement to reduce the losses caused by weather, green weeds or insects. Mayer (8) concluded that high threshing losses resulted because of the limited capacity of the combine cylinder. Nyborg (9) showed that the separating action of the straw walkers was the limiting factor in combine capacity, and that overloading this mechanism could contribute to a high harvest loss. It has been reported (1) that the pick-up loss may be minimized by operating the pick-up as close to the ground as possible and by limiting the forward speed of the combine to four miles per hour. Preliminary field studies with the windrower and combine were con ducted at Swift Current in 1948 and 1949 to develop a technique for determining the grain losses, and to classify them. Two main groups of losses, natural and mechanical, were observed. The natural loss, which occurs prior to and during harvesting operations was caused by wind, rain, insects, animals and birds. The mechanical loss may be divided into three subgroups, namely, (a) the reel and cutter bar loss (b) the pick-up loss and
Keywords: grain losses in the field when windrowing and combining wheat
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Mots-clés:
Citation: Dodds, M. E. 1966. GRAIN LOSSES IN THE FIELD WHEN WINDROWING AND COMBINING WHEAT. Canadian Agricultural Engineering 8(1):31-32.
Volume: 8
Issue: 1
Pages 31 - 32
Contributor:
Date: 1966
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Coverage: Canada
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DOI:
Description: Losses of grain in the field, which occur with the use of the header, combine and windrower, have caused much concern to farmers and research workers. Bracken (2) reported that the combine method of harvesting was more efficient than the header and thresher method. Hardy (5) stated that, since uniform maturity and low kernel moisture content were necessary for the straight combining of grain, a loss of grain could result from adverse weather conditions during the period between the binding and the straight combining stages. Many other re search workers (4, 6, 7, 10, 11) suggested that the windrower should be used as a harvesting implement to reduce the losses caused by weather, green weeds or insects. Mayer (8) concluded that high threshing losses resulted because of the limited capacity of the combine cylinder. Nyborg (9) showed that the separating action of the straw walkers was the limiting factor in combine capacity, and that overloading this mechanism could contribute to a high harvest loss. It has been reported (1) that the pick-up loss may be minimized by operating the pick-up as close to the ground as possible and by limiting the forward speed of the combine to four miles per hour. Preliminary field studies with the windrower and combine were con ducted at Swift Current in 1948 and 1949 to develop a technique for determining the grain losses, and to classify them. Two main groups of losses, natural and mechanical, were observed. The natural loss, which occurs prior to and during harvesting operations was caused by wind, rain, insects, animals and birds. The mechanical loss may be divided into three subgroups, namely, (a) the reel and cutter bar loss (b) the pick-up loss and
Keywords: grain losses in the field when windrowing and combining wheat
Résumé:
Mots-clés:
Citation: Dodds, M. E. 1966. GRAIN LOSSES IN THE FIELD WHEN WINDROWING AND COMBINING WHEAT. Canadian Agricultural Engineering 8(1):31-32.
Volume: 8
Issue: 1
Pages 31 - 32
Contributor:
Date: 1966
Technical field:
Conference name:
Session name:
Other information:
Type:
Format:
Publication type:
Source:
Relation:
Coverage: Canada
Language 1:
Language 2:
Rights:
Notes:
Other files:
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