Response of oat-triticale mixture to post-emergence weed harrowing
Piotr Sobkowicz , Ewa Tendziagolska , Agnieszka Łagocka
AbstractIn experiments with weed harrowing crops are negatively affected by competing weeds but also by the destructive effect of used implement. This research was carried out to find growth stages during which mixture of oat (Avena sativa L.) and triticale (x Triticosecale Wittm.) was resistant to harrowing and was able to effectively recover from this physical disturbance. Plots were harrowed 1-3 times on the same day at six consecutive stages of mixture growth with spring-tine harrow. After the latest harrowing, all plots were sprayed with herbicide to exclude competitive effect of weeds on the mixture. Compared to non-harrowed plots plant density of mixture was significantly reduced after a single cultivation at 1- and 2-leaf stage (20% and 23% respectively), two cultivations at 3-leaf stage (22%) and three at the beginning of the tillering (21%). No yield penalty was noticed for the density reductions, thus showing high ability of mixture to recover from physical disturbance. We recommend plant emergence as an appropriate growth stage for single harrowing of oat-triticale mixture. Two cultivations on the same day should not be planned earlier than at the beginning of tillering.
|Journal series||Acta Agriculturae Scandinavica Section B-Soil and Plant Science, [Acta Agriculturae Scandinavica - Section B Soil and Plant Science], ISSN 0906-4710, e-ISSN 1651-1913, (N/A 40 pkt)|
|Publication size in sheets||0.55|
|Keywords in English||Weed harrowing, spring-tine harrow, cereal mixture, oat, triticale|
|Score||= 40.0, 14-09-2020, ArticleFromJournal|
|Publication indicators||= 1; = 0; : 2018 = 0.619; : 2018 = 0.81 (2) - 2018=0.947 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.