Dírect sowing of onion (Allium cepa) over cover crops with dífferent lengths of the chemícal fallow
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional de Colombia
2021
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| _version_ | 1876489212130230272 |
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| author | Jorge Gualberto Volpi Alvez |
| author_facet | Jorge Gualberto Volpi Alvez |
| contents | Dírect sowing of onion (Allium cepa) over cover crops with dífferent lengths of the chemícal fallow Jorge Gualberto Volpi Alvez Juan José Olivet Martínez Joao Paulo Rodrigues da Cunha Agrociencias fallow planters cover crop Allelopathy establishment The objective of this work was to evalúate the effect of cover crops and fallow duration on the onion crop planted in direct sowing in trials carried out for three years. In the year 2013, two field trials were carried out in two sites. Two cover crops (oats and millet) and one uncovered control were evaluated at three planting dates. The studied variables were crop establishment and dry matter of the cover. In the field trials performed in 2014 and 2015 the effect of the length of the chemical fallow of oats on the establishment of onion was evaluated. The effect of the duration of the chemical fallow of oats was also evaluated in laboratory in 2015 in Petri dishes. In 2013, the greatest establishment was obtained in the treatments without cover in both sites. In 2014 the greater the duration was of the chemical fallow of the cover, the greater the onion establishment. In the field trial in 2015, no effects of fallow duration on crop establishment were observed, a result attributable to the intense rainfall recorded. In the laboratory, germination was higher in treatments with longer fallow periods. Based on the results, evidence was obtained of the negative effect of the cover crops in the establishment of the onion crop. These effects were inversely related to the duration of chemical fallow and may be attributable to allelopathic effects. 2021 artículo científico 0120-2812 https://www.redalyc.org/articulo.oa?id=169975159003 https://www.redalyc.org/journal/1699/169975159003/ https://www.redalyc.org/journal/1699/169975159003/html/ https://www.redalyc.org/journal/1699/169975159003/169975159003.epub https://www.redalyc.org/journal/1699/169975159003/movil 10.15446/acag.v70n3.81515 en http://www.redalyc.org/revista.oa?id=1699 Acta Agronómica application/pdf Universidad Nacional de Colombia Acta Agronómica (Colombia) Num.3 Vol.70 |
| format | Artículo científico |
| id | redalyc_169975159003 |
| institution | Redalyc |
| language | en |
| publishDate | 2021 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Dírect sowing of onion (Allium cepa) over cover crops with dífferent lengths of the chemícal fallow Jorge Gualberto Volpi Alvez Agrociencias fallow planters cover crop Allelopathy establishment Dírect sowing of onion (Allium cepa) over cover crops with dífferent lengths of the chemícal fallow Jorge Gualberto Volpi Alvez Juan José Olivet Martínez Joao Paulo Rodrigues da Cunha Agrociencias fallow planters cover crop Allelopathy establishment The objective of this work was to evalúate the effect of cover crops and fallow duration on the onion crop planted in direct sowing in trials carried out for three years. In the year 2013, two field trials were carried out in two sites. Two cover crops (oats and millet) and one uncovered control were evaluated at three planting dates. The studied variables were crop establishment and dry matter of the cover. In the field trials performed in 2014 and 2015 the effect of the length of the chemical fallow of oats on the establishment of onion was evaluated. The effect of the duration of the chemical fallow of oats was also evaluated in laboratory in 2015 in Petri dishes. In 2013, the greatest establishment was obtained in the treatments without cover in both sites. In 2014 the greater the duration was of the chemical fallow of the cover, the greater the onion establishment. In the field trial in 2015, no effects of fallow duration on crop establishment were observed, a result attributable to the intense rainfall recorded. In the laboratory, germination was higher in treatments with longer fallow periods. Based on the results, evidence was obtained of the negative effect of the cover crops in the establishment of the onion crop. These effects were inversely related to the duration of chemical fallow and may be attributable to allelopathic effects. 2021 artículo científico 0120-2812 https://www.redalyc.org/articulo.oa?id=169975159003 https://www.redalyc.org/journal/1699/169975159003/ https://www.redalyc.org/journal/1699/169975159003/html/ https://www.redalyc.org/journal/1699/169975159003/169975159003.epub https://www.redalyc.org/journal/1699/169975159003/movil 10.15446/acag.v70n3.81515 en http://www.redalyc.org/revista.oa?id=1699 Acta Agronómica application/pdf Universidad Nacional de Colombia Acta Agronómica (Colombia) Num.3 Vol.70 |
| title | Dírect sowing of onion (Allium cepa) over cover crops with dífferent lengths of the chemícal fallow |
| topic | Agrociencias fallow planters cover crop Allelopathy establishment |
| url | https://www.redalyc.org/articulo.oa?id=169975159003 https://www.redalyc.org/journal/1699/169975159003/ https://www.redalyc.org/journal/1699/169975159003/html/ https://www.redalyc.org/journal/1699/169975159003/169975159003.epub https://www.redalyc.org/journal/1699/169975159003/movil |