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Relationship between cultural practices and the occurrence of volunteer potatoes in the Columbia Basin

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Abstract

The time of tillage practices following potato harvest in the Columbia Basin affected numbers of volunteer potato plants that emerged. The best control was achieved by waiting after harvest until tubers on the surface were frosted at least once and then plowed to expose additional tubers from below the frost. Planting a wheat cover crop after plowing further reduced numbers of volunteers. Foliage treatment with maleic hydrazide to prevent sprouting gave excellent volunteer control in one season and poor control the next. Soil fumigation with Telone C-17 gave excellent control of volunteers. Properly timed tillage combined with use of a wheat cover crop was as effective as the chemical treatments in reducing numbers of volunteers.

Resumen

El momento para llevar acabo las prácticas de preparación del suelo después de la cosecha de papa en el Columbia Basin, afectó el número de plantas voluntarias de papa que emergieron. El mejor control se obtuvo cuando se espero que los tubérculos remanentes de la cosecha que estaban en la superficie se helaran y después se aro el terreno para exponer los tubérculos adicionales a las heladas. La siembra de trigo como cultivo de cubierta después de la aradura, redujo el número de plantas voluntarias. El tratamiento al follaje con hydrizida maleica para prevenir brotación dio excelente control en una campaña y mal control en la siguiente. La fumigación del suelo con Telone C-17 dio excelente control de plantas voluntarias. La preparación del suelo programado oportunamente combinado con el uso de trigo como cultivo de cubierta fue tan efectivo como los tratamientos químicos, en reducir el número de plantas voluntarias.

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Literature Cited

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Mention of a trade name or a company does not constitute a guarantee or warranty of a product by the U.S. Department of Agriculture and does not imply its approval to the exclusion of other products that may also be suitable.

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Thomas, P.E., Smith, D.R. Relationship between cultural practices and the occurrence of volunteer potatoes in the Columbia Basin. American Potato Journal 60, 289–294 (1983). https://doi.org/10.1007/BF02854279

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  • DOI: https://doi.org/10.1007/BF02854279

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