Stored Grain Pack Factor Measurements for Soybeans, Sorghum, Oats, Barley, and Wheat

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dc.contributor.author Bhadra, Rumela
dc.contributor.author Casada, Mark E.
dc.contributor.author Turner, Aaron P.
dc.contributor.author Montross, Michael D.
dc.contributor.author Thompson, Sidney A.
dc.contributor.author McNeill, Samuel G.
dc.contributor.author Maghirang, Ronaldo G.
dc.contributor.author Boac, Josephine M.
dc.date.accessioned 2018-04-16T17:34:37Z
dc.date.available 2018-04-16T17:34:37Z
dc.date.issued 2018-06-01
dc.identifier.uri http://hdl.handle.net/2097/38774
dc.description.abstract Grain and oilseed crops stored in bins undergo compaction due to overbearing pressure of the grain inside the structure. Thus, volume measurements of grain in bins need to be combined with the amount of packing—usually called pack factor—in addition to the initial density so that the mass in the structure can be calculated. Multiple pack factor prediction methods are in use in the grain industry, but they have only been validated in the literature and compared with field data for corn and hard red winter wheat. Predictions from WPACKING, the program in ASABE standard EP413.2, and two standard USDA methods, the USDA Risk Management Agency (RMA) and USDA Farm Service Agency-Warehouse Licensing and Examination Division (FSA-W) methods, were compared to field measurements of 92 bins containing soybeans, sorghum, oats, barley, or soft white or durum wheat. The WPACKING predictions had the lowest absolute average error of predicted mass for soybeans, sorghum, barley, and wheat, while the FSA-W method had the lowest error for oats. The RMA method gave the largest prediction errors for all five crops and struggled especially with the low-density, high-compaction crops oats and barley, giving average percent absolute errors near or above 10% in both cases. Overall, WPACKING, the RMA method, and the FSA-W method had average percent absolute errors of 2.09%, 5.65%, and 3.62%, respectively, for the 92 bins. These results can be used to improve pack factor predictions for the grain industry.
dc.relation.uri https://doi.org/10.13031/trans.12645
dc.rights Copyright 2018 American Society of Agricultural and Biological Engineers. This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
dc.rights.uri http://rightsstatements.org/vocab/InC/1.0/
dc.subject Pack factor
dc.subject Stored grain inventory
dc.subject Steel and concrete bins
dc.subject Test weight
dc.subject Soybeans
dc.subject Grain sorghum
dc.title Stored Grain Pack Factor Measurements for Soybeans, Sorghum, Oats, Barley, and Wheat
dc.type Article
dc.date.published 2018
dc.citation.doi 10.13031/trans.12645
dc.citation.issn 2151-0032
dc.citation.jtitle Transactions of the ASABE
dc.citation Bhadra, R., Casada, M. E., Turner, A. P., Montross, M. D., Thompson, S. A., McNeill, S. G., … Boac, J. M. (2018). Stored Grain Pack Factor Measurements for Soybeans, Sorghum, Oats, Barley, and Wheat. Transactions of the ASABE, 0(0), 0. https://doi.org/10.13031/trans.12645
dc.contributor.authoreid casada
dc.contributor.authoreid rbhadra
dc.contributor.authoreid rmaghir


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Copyright 2018 American Society of Agricultural and Biological Engineers. This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). Except where otherwise noted, the use of this item is bound by the following: Copyright 2018 American Society of Agricultural and Biological Engineers. This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).

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