Analysis of factors affecting the impurity rate of mechanically-harvested maize grain in China
Keywords:
mechanically-harvested maize grain, impurity rate, factors, analysisAbstract
The grain impurity rate is an important index for assessing the quality of mechanical maize harvesting. Therefore, it is of great significance to clarify the current situation of maize impurity rate and study the factors that affect the impurity rate in order to promote the development of mechanical maize harvesting technology. From 2012 to 2019, a total of 2504 maize impurity rate measurements were obtained. The results showed that the average impurity rate at maize harvest was 1.18% in China, in which the Huang-Huai-Hai summer maize area was 1.68%, which was significantly higher than the 0.65% in the Northwest spring maize area and 0.77% in the North China spring maize area. There was a significant positive correlation between the impurity rate and the moisture content of the maize harvest. The average moisture content of maize at harvest in Huang-Huai-Hai summer maize area was the highest at 27.55%, which was the main reason for the high impurity rate in this area. When harvesting different varieties with the same moisture content, there were significant differences in the impurity rate between different varieties. The cob hardness of the variety may also affect the impurity rate of maize. Different harvesters and weather conditions during harvesting are also important factors affecting the impurity rate. Therefore, by breeding fast dehydrated varieties and harvesting maize in time, the impurity rate of maize during mechanical harvesting can be effectively reduced. Keywords: mechanically-harvested maize grain, impurity rate, factors, analysis DOI: 10.25165/j.ijabe.20201305.6038 Citation: Huang Z F, Xue J, Ming B, Wang K R, Xie R Z, Hou P, et al. Analysis of factors affecting the impurity rate of mechanically-harvested maize grain in China. Int J Agric & Biol Eng, 2020; 13(5): 17–22.References
Waelti H. Physical properties and morphological characteristics of maize and their influence on threshing injury of kernels. PhD dissertation. Ames: Iowa State University, 1967; 143p.
Dutta P K. Effects of grain moisture, drying methods, and variety on breakage susceptibility of shelled corns as measured by the Wisconsin Breakage Tester. PhD dissertation. Ames: Iowa State University, 1986; 196p.
Liu F H, Wang K R, Li J, Wang X M, Sun Y L, Chen Y S, et al. Factors affecting corn mechanically harvesting grain quality. Crops, 2013; 4: 116–119. (in Chinese)
Chai Z W, Wang K R, Guo Y Q, Xie R Z, Li L L, Ming B, et al. Current status of corn mechanical grain harvesting and its relationship with grain moisture content. Scientia Agricultura Sinica, 2017; 50(11): 2036–2043. (in Chinese)
Baute T, Hayes A, Mcdonald I, Reid K. Agronomy guide for field crops. Omafar Publication 811, Ontario Ministry of Agriculture Food and Rural Affairs (OMAFRA), 2002. http://www.omafra.gov. on.ca/english/crops/pub811/2limeph.htm. Accessed on [2017-02-06].
Wang K R, Li S K. Progresses in research on grain broken rate by mechanical grain harvesting. Scientia Agricultura Sinica, 2017; 50(11): 2018–2026. (in Chinese)
Wang K R, Li L L, Guo Y Q, Fan P P, Cai Z W, Hou P, et al. Effects of different mechanical operation on corn grain harvest quality. Journal of Corn Science, 2016; 24(1): 114–116. (in Chinese)
Li S K, Wang K R, Xie R Z, Li L L, Ming B, Hou P, et al. Grain breakage rate of corn by mechanical harvesting in China. Crops, 2017; 2: 76–80. (in Chinese)
Anazodo U G N, Wall G L, Norris E R. Corn physical and mechanical properties as related to combine cylinder performance. Canadian Agricultural Engineering, 1981; 23(1): 23–30.
Xue J, Zhao Y, Gou L, Shi Z, Yao M, Zhang W. How high plant density of corn affects basal internode development and strength formation. Crop Science, 2016; 56(6): 3295–3306. (in Chinese)
Li S K. Factors affecting the quality of corn grain mechanical harvest and the development trend of grain harvest technology. Journal of Shihezi University, 2017; 35(3): 265–272. (in Chinese)
Li L L, Ming B, Xie R Z, Wang K R, Hou P, Li S K. Grain dehydration types and establishment of mechanical grain harvesting time for summer maize in the Yellow-Huai-Hai Rivers Plain. Acta Agron. Sin., 2018; 44(12): 1764–1773. (in Chinese)
Dong P F, Li C H, Li S K, Wang K R, Liu T X, Zhang X L, et al. Study on mechanical harvest quality and kernel moisture content of different corn hybrids at different sowing date in continuous rain. Journal of Corn science, 2019; 27(5): 137–142. (in Chinese)
Xue J, Li L L, Zhang W X, Wang Q, Xie R Z, Wang K R, et al. Corn cob mechanical strength and its influence on kernel broken rate. Scientia Agricultura Sinica, 2018; 51(10): 1868–1877. (in Chinese)
Sun S L, Zhang S G, Xue J S, Zhang T Y, Gao S R, Xiang C Y. Study on correlation between kernel dehydration and ear characters of corn. J. of Heilongjiang August First Land Reclamation University, 1993; 1: 12–17. (in Chinese)
Zhao H X, Zhang H, Sun X D, Wang Q C, Liu K C, Liu X, et al. Comprehensive evaluation on ear dehydration characteristics of different genotypes of summer corn. Shandong Agricultural Sciences, 2014; (12): 18–22. (in Chinese)
Purdy J L, Crane P L. Inheritance of drying rate in “mature” corn (Zea mays L.). Crop Science, 1967; 7(4): 294–297.
Widdicombe W D, Thelen K D. Row width and plant density effects on corn grain production in the Northern corn belt. Agronomy Journal, 2002; 94(5): 1020–1023.
Henry W, Buchele W F. Factors affecting corn kernel damage combine cylinders. Transactions of the ASAE, 1969; 12(1): 55–59.
Chowdhury M H, Buchele W F. The nature of corn kernel damage inflicted in the shelling crescent of grain combines. Transactions of the ASAE, 1978; 21(4): 610–614.
Delong H H, Schwantes A J. Mechanical injury in threshing barley. Agriculture Engineering, 1942; 23: 99–101.
Petre I M. Combine harvesters: Theory, modeling and design. Boca Taton: CRC Press Inc, 2015; pp.3–25.
Pickard G E. Laboratory studies in corn combining. Agricultural Engineering, 1955; 36: 792–794.
Rodrigo G S, Fernando H A, Elsa L C. Quantitative trait loci for grain moisture at harvest and field grain drying rate in corn (Zea mays L). Theoretical & Applied Genetics, 2006; 112(3): 462–471.
Arnold R E. Experiments with rasp bar threshing drums. Journal of Agricultural Engineering Research, 1964; 9(2): 99–131.
Downloads
Published
How to Cite
Issue
Section
License
IJABE is an international peer reviewed, open access journal, adopting Creative Commons Copyright Notices as follows.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
