Evaluation of different construction materials in the shield sunflower harvester head (Helianthus annuus L.) for the reduction of capitulum shelling
In the harvest, the highest percentage of grain losses occurs in the harvester head. This exceeds 70 % of the total loss in the cultivation of sunflower (Helianthus annuus L.). The objectives of this work were to test the different manufacturing materials of the shield of the sunflower head at diffe...
| Main Authors: | , , |
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| Format: | Online |
| Language: | spa |
| Published: |
Facultad de Ciencias Agropecuarias
2022
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| Subjects: | |
| Online Access: | https://revistas.unc.edu.ar/index.php/agris/article/view/37537 |
| _version_ | 1811172648926838784 |
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| author | Mavolo, Luca Rivero, David Botta, Guido |
| author_facet | Mavolo, Luca Rivero, David Botta, Guido |
| author_sort | Mavolo, Luca |
| collection | Portal de Revistas |
| description | In the harvest, the highest percentage of grain losses occurs in the harvester head. This exceeds 70 % of the total loss in the cultivation of sunflower (Helianthus annuus L.). The objectives of this work were to test the different manufacturing materials of the shield of the sunflower head at different speeds to reduce losses due to impact and to propose different recommended speeds for each material. The test was carried out on confectionery sunflower (Hybrid NTC 90). A Mainero brand head was used. It was tested at two different forward speeds (6.5 km/h and 8 km/h) with three shields made of different materials: a 2 mm thick sheet metal shield, a shield covered with elastomer, and a shield made of fiberglass. The parameter evaluated was the loss of grains in the harvester head. The results obtained show that the fiberglass shield presented the lowest percentage of grain losses and that at 8 km/h grain losses exceeded those recommended regardless of the shield used. It is concluded that the use of more elastic materials reduces grain loss due to impact. |
| format | Online |
| id | oai:ojs.revistas.unc.edu.ar:article-37537 |
| institution | Universidad Nacional de Cordoba |
| language | spa |
| publishDate | 2022 |
| publisher | Facultad de Ciencias Agropecuarias |
| record_format | ojs |
| spelling | oai:ojs.revistas.unc.edu.ar:article-375372023-11-30T18:44:58Z Evaluation of different construction materials in the shield sunflower harvester head (Helianthus annuus L.) for the reduction of capitulum shelling Evaluación de distintos materiales de construcción en el escudo del cabezal de la cosechadora de girasol (Helianthus annuus L.) para la reducción del desgrane del capítulo Mavolo, Luca Rivero, David Botta, Guido cultivos rendimientos cosechadoras cultivation yields In the harvest, the highest percentage of grain losses occurs in the harvester head. This exceeds 70 % of the total loss in the cultivation of sunflower (Helianthus annuus L.). The objectives of this work were to test the different manufacturing materials of the shield of the sunflower head at different speeds to reduce losses due to impact and to propose different recommended speeds for each material. The test was carried out on confectionery sunflower (Hybrid NTC 90). A Mainero brand head was used. It was tested at two different forward speeds (6.5 km/h and 8 km/h) with three shields made of different materials: a 2 mm thick sheet metal shield, a shield covered with elastomer, and a shield made of fiberglass. The parameter evaluated was the loss of grains in the harvester head. The results obtained show that the fiberglass shield presented the lowest percentage of grain losses and that at 8 km/h grain losses exceeded those recommended regardless of the shield used. It is concluded that the use of more elastic materials reduces grain loss due to impact. En la cosecha, el mayor porcentaje de pérdidas de granos se produce en el cabezal de la cosechadora. Este supera el 70 % del total de pérdidas en el cultivo de girasol (Helianthus annuus L.). Los objetivos de este trabajo fueron ensayar los distintos materiales de fabricación del escudo del cabezal girasolero a distintas velocidades, para disminuir pérdidas por impact; y proponer distintas velocidades recomendadas para cada material. El ensayo fue realizado sobre girasol confitero (Híbrido NTC 90). Se utilizó un cabezal marca Mainero. Este fue probado con dos velocidades de avance diferentes (6,5 km/h y 8 km/h) con tres escudos construidos con diferentes materiales: un escudo de chapa de 2 mm de espesor, un escudo recubierto de elastómero, y un escudo construido en fibra de vidrio. El parámetro evaluado fue la pérdida de granos en el cabezal de la cosechadora. Los resultados que se obtuvieron indican que el escudo de fibra de vidrio presentó el menor porcentaje de pérdidas de grano y que a 8 km/h las pérdidas de granos superaron los valores recomendados, independientemente del escudo utilizado. Se concluye que la utilización de materiales más elásticos reduce las pérdidas. Facultad de Ciencias Agropecuarias 2022-12-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.unc.edu.ar/index.php/agris/article/view/37537 10.31047/1668.298x.v39.n2.37537 AgriScientia; Vol. 39 No. 2 (2022); 65-73 AgriScientia; Vol. 39 Núm. 2 (2022); 65-73 1668-298X 10.31047/1668.298x.v39.n2 spa https://revistas.unc.edu.ar/index.php/agris/article/view/37537/40245 https://revistas.unc.edu.ar/index.php/agris/article/view/37537/41190 Derechos de autor 2022 Luca Mavolo, David Rivero, Guido Botta https://creativecommons.org/licenses/by-sa/4.0 |
| spellingShingle | cultivos rendimientos cosechadoras cultivation yields Mavolo, Luca Rivero, David Botta, Guido Evaluation of different construction materials in the shield sunflower harvester head (Helianthus annuus L.) for the reduction of capitulum shelling |
| title | Evaluation of different construction materials in the shield sunflower harvester head (Helianthus annuus L.) for the reduction of capitulum shelling |
| title_alt | Evaluación de distintos materiales de construcción en el escudo del cabezal de la cosechadora de girasol (Helianthus annuus L.) para la reducción del desgrane del capítulo |
| title_full | Evaluation of different construction materials in the shield sunflower harvester head (Helianthus annuus L.) for the reduction of capitulum shelling |
| title_fullStr | Evaluation of different construction materials in the shield sunflower harvester head (Helianthus annuus L.) for the reduction of capitulum shelling |
| title_full_unstemmed | Evaluation of different construction materials in the shield sunflower harvester head (Helianthus annuus L.) for the reduction of capitulum shelling |
| title_short | Evaluation of different construction materials in the shield sunflower harvester head (Helianthus annuus L.) for the reduction of capitulum shelling |
| title_sort | evaluation of different construction materials in the shield sunflower harvester head helianthus annuus l for the reduction of capitulum shelling |
| topic | cultivos rendimientos cosechadoras cultivation yields |
| topic_facet | cultivos rendimientos cosechadoras cultivation yields |
| url | https://revistas.unc.edu.ar/index.php/agris/article/view/37537 |
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