Soil herbicidal activity of clethodim and haloxyfop R-methyl and its phytotoxic effect in maize (Zea mays)
The herbicides haloxyfop R-methyl and clethodim may persist active in the soil causing phytotoxic effects to grass crops when applied close to sowing. In this work, field and greenhouse experiments were conducted to evaluate the phytotoxic potential of different rates of these herbicides in maize an...
| Main Authors: | , , , , |
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| Format: | Online |
| Language: | spa |
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Facultad de Ciencias Agropecuarias
2017
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| Online Access: | https://revistas.unc.edu.ar/index.php/agris/article/view/19043 |
| _version_ | 1834859233419460608 |
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| author | Ustarroz, D. Montoya, J. Ledda, A. Belluccini, P. A. Cervellini, J. M. |
| author_facet | Ustarroz, D. Montoya, J. Ledda, A. Belluccini, P. A. Cervellini, J. M. |
| author_sort | Ustarroz, D. |
| collection | Portal de Revistas |
| description | The herbicides haloxyfop R-methyl and clethodim may persist active in the soil causing phytotoxic effects to grass crops when applied close to sowing. In this work, field and greenhouse experiments were conducted to evaluate the phytotoxic potential of different rates of these herbicides in maize and to study the irrigation requirements and time between application and sowing to avoid phytotoxicity in the crop. Field experiments were carried out on four agroecological areas. Under field conditions the lower rates of both herbicides, 62.5 and 120 g i.a. ha-1 of haloxyfop R-methyl and clethodim respectively, produced visual phytotoxicity lower than 14 %. At higher rates, in two of the four environments higher levels of phytotoxicity (32-78 %) were registered. Both herbicides reduced maize plants biomass when they were not incorporated to the soil by irrigation and the sowing was carried out 14 days after their application. When irrigation was performed after the application of herbicides, 7 days were enough to avoid phytotoxicity at 62.5 and 125 g i.a. ha-1 of haloxyfop R-methyl and 120 g i.a. ha-1 of clethodim. None of the evaluated treatments reduced the plant biomass of maize planted 14 days after irrigation. |
| format | Online |
| id | oai:ojs.revistas.unc.edu.ar:article-19043 |
| institution | Universidad Nacional de Cordoba |
| language | spa |
| publishDate | 2017 |
| publisher | Facultad de Ciencias Agropecuarias |
| record_format | ojs |
| spelling | oai:ojs.revistas.unc.edu.ar:article-190432020-03-31T16:11:23Z Soil herbicidal activity of clethodim and haloxyfop R-methyl and its phytotoxic effect in maize (Zea mays) Actividad de cletodim y haloxifop R-metil en el suelo y su efecto fitotóxico en el cultivo de maíz (Zea mays) Ustarroz, D. Montoya, J. Ledda, A. Belluccini, P. A. Cervellini, J. M. Accasa inhibitors soil residuality phytotoxicity maize inhibidores de ACCasa residualidad fitotoxicidad maíz The herbicides haloxyfop R-methyl and clethodim may persist active in the soil causing phytotoxic effects to grass crops when applied close to sowing. In this work, field and greenhouse experiments were conducted to evaluate the phytotoxic potential of different rates of these herbicides in maize and to study the irrigation requirements and time between application and sowing to avoid phytotoxicity in the crop. Field experiments were carried out on four agroecological areas. Under field conditions the lower rates of both herbicides, 62.5 and 120 g i.a. ha-1 of haloxyfop R-methyl and clethodim respectively, produced visual phytotoxicity lower than 14 %. At higher rates, in two of the four environments higher levels of phytotoxicity (32-78 %) were registered. Both herbicides reduced maize plants biomass when they were not incorporated to the soil by irrigation and the sowing was carried out 14 days after their application. When irrigation was performed after the application of herbicides, 7 days were enough to avoid phytotoxicity at 62.5 and 125 g i.a. ha-1 of haloxyfop R-methyl and 120 g i.a. ha-1 of clethodim. None of the evaluated treatments reduced the plant biomass of maize planted 14 days after irrigation. Los herbicidas haloxifop R-metil y cletodim pueden persistir activos en el suelo causando efectos fitotóxicos a cultivos de gramíneas cuando son aplicados próximos a la siembra. En este trabajo se realizaron experimentos de campo en cuatro ambientes y en macetas bajo invernáculo. El objetivo fue evaluar el efecto fitotóxico de distintas dosis de haloxifop R-metil y cletodim aplicados al suelo en el cultivo de maíz y estudiar los requerimientos de riego y tiempo entre aplicación y siembra, para evitar efectos fitotóxicos. En condiciones de campo, 62,5 y 120 g.i.a. ha-1 de haloxifop R-metil y cletodim respectivamente, produjeron fitotoxicidad visual menor a 14 %. Con dosis superiores, en dos de los cuatro ambientes se observaron mayores niveles de fitotoxicidad (32-78%). Ambos herbicidas redujeron la biomasa de las plantas de maíz cuando no fueron incorporados al suelo mediante riego y la siembra se realizó 14 días después de su aplicación. Cuando se realizó riego tras la aplicación de los herbicidas, siete días resultaron suficientes para evitar fitotoxicidad con 62,5 y 125 g i.a. ha-1 de haloxifop R-metil y 120 g i.a. ha-1 de cletodim. Ninguno de los tratamientos evaluados redujo la biomasa de las plantas de maíz sembradas 14 días después del riego. Facultad de Ciencias Agropecuarias 2017-12-27 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.unc.edu.ar/index.php/agris/article/view/19043 10.31047/1668.298x.v34.n2.19043 AgriScientia; Vol. 34 No. 2 (2017); 83-89 AgriScientia; Vol. 34 Núm. 2 (2017); 83-89 1668-298X 10.31047/1668.298x.v34.n2 spa https://revistas.unc.edu.ar/index.php/agris/article/view/19043/18958 https://revistas.unc.edu.ar/index.php/agris/article/view/19043/29321 |
| spellingShingle | Accasa inhibitors soil residuality phytotoxicity maize inhibidores de ACCasa residualidad fitotoxicidad maíz Ustarroz, D. Montoya, J. Ledda, A. Belluccini, P. A. Cervellini, J. M. Soil herbicidal activity of clethodim and haloxyfop R-methyl and its phytotoxic effect in maize (Zea mays) |
| title | Soil herbicidal activity of clethodim and haloxyfop R-methyl and its phytotoxic effect in maize (Zea mays) |
| title_alt | Actividad de cletodim y haloxifop R-metil en el suelo y su efecto fitotóxico en el cultivo de maíz (Zea mays) |
| title_full | Soil herbicidal activity of clethodim and haloxyfop R-methyl and its phytotoxic effect in maize (Zea mays) |
| title_fullStr | Soil herbicidal activity of clethodim and haloxyfop R-methyl and its phytotoxic effect in maize (Zea mays) |
| title_full_unstemmed | Soil herbicidal activity of clethodim and haloxyfop R-methyl and its phytotoxic effect in maize (Zea mays) |
| title_short | Soil herbicidal activity of clethodim and haloxyfop R-methyl and its phytotoxic effect in maize (Zea mays) |
| title_sort | soil herbicidal activity of clethodim and haloxyfop r methyl and its phytotoxic effect in maize zea mays |
| topic | Accasa inhibitors soil residuality phytotoxicity maize inhibidores de ACCasa residualidad fitotoxicidad maíz |
| topic_facet | Accasa inhibitors soil residuality phytotoxicity maize inhibidores de ACCasa residualidad fitotoxicidad maíz |
| url | https://revistas.unc.edu.ar/index.php/agris/article/view/19043 |
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