The Nature of Corn Kernel Damage Inflicted in the Shelling Crescent of Grain Combines

Chowdhury, Mofazzal H.; Buchele, Wesley F.

doi:10.13031/2013.35353

Cited by 19 publications

(3 citation statements)

References 3 publications

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“…8). This supports the argument generated by earlier studies; namely that grain damage can potentially be reduced when the shelled grains are expelled from the threshing crescent immediately after threshing [23]. The study results support the use of a rational 62.5 mm clearance between the crossbars in the experimental concave, ensuring that the portion of damaged grain does not exceed the acceptable limit of 3%.…”

Section: Loss Of Grain Separation Through Concavesupporting

confidence: 89%

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Concave Design for High-Moisture Corn Ear Threshing

Steponavičius

Pužauskas

Špokas

et al. 2018

mech

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Section: Loss Of Grain Separation Through Concavesupporting

confidence: 89%

“…Grain damage can possibly be reduced by redesigning the threshing mechanism, which includes both the cylinder and the concave, so that the shelled grains can leave the threshing crescent immediately after shelling [23]. Previous research has demonstrated that an increase in concave rod spacing tends to reduce the threshing unit loss [24].…”

Section: Introductionmentioning

confidence: 99%

Concave Design for High-Moisture Corn Ear Threshing

Steponavičius

Pužauskas

Špokas

et al. 2018

mech

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“…According to Hall et al, (1970), the yield breakage rate was the lowest when the grain water content was 20%-23%. Chowdhury et al (1978), believed that the mechanical damage rate was the lowest when the moisture content was 23%. Li Lulu et al, (2017) pointed out that when the moisture content was lower than 26.92%, the grain breakage rate was less than 8%.…”

Section: Introductionmentioning

confidence: 99%

Study on the Influence of Moisture Content and Compression Resistance Characteristics of Corn Grain on Threshed Breakage Rate

ZHANG,

HAO,

JIAO

et al. 2023

INMATEH

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High breakage rate is the bottleneck that restricts corn grain mechanical harvesting in double-cropping area in China. The moisture content and compression resistance characteristics of corn grain have important effects on the breakage rate at threshing. In this paper, 5 corn varieties planted in double cropping area were selected and the effects of grain moisture content and compression resistance characteristics on threshed breakage rate were studied. Results showed that both the grains moisture content and the compression resistance characteristics had effects on the threshed breakage rate. The lower the moisture content, the greater the force required for breakage, and the more difficult it was to break. Meanwhile the breakage rate was also related to the displacement during pressing. The smaller the displacement, the lower the breakage rate, but if the displacement was too small, the corn was a silty variety and the breakage rate was still high. When the moisture content was 33%±1%, the threshing verification test showed that the average breakage rate of DH605, LY296 and KN21 was 5.39%, 5.02% and 7.13%, respectively, which was not suitable for grain mechanical harvesting under high moisture content (moisture content higher than 30%). However, the average breakage rate of LK868 and LD6018 was 4.76% and 4.25% respectively, which was suitable for grain mechanical harvesting under high moisture content. This research could provide a reference for corn varieties selection suitable for mechanical kernel harvesting in double cropping area.

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Mechanical damage in agricultural products: A basis for management

Schoorl

Holt

1983

Agricultural Systems

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The Nature of Corn Kernel Damage Inflicted in the Shelling Crescent of Grain Combines

Cited by 19 publications

References 3 publications

Concave Design for High-Moisture Corn Ear Threshing

Concave Design for High-Moisture Corn Ear Threshing

Study on the Influence of Moisture Content and Compression Resistance Characteristics of Corn Grain on Threshed Breakage Rate

Mechanical damage in agricultural products: A basis for management

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