Published in Scientific Papers. Series A. Agronomy, Vol. LXVIII, Issue 2
Written by Alin CARABET, Ioana GROZEA, Otilia COTUNA, Dan MANEA, Ana Maria VÎRTEIU, Ciprian STROIA, Daniela SCEDEI, Dacian LALESCU, Ramona ȘTEF
Linum usitatissimum is a valuable crop with food and industrial significance, yet its production is often reduced by biotic and abiotic factors, particularly weed competition. This study focused on the chemical control of Convolvulus arvensis and Chenopodium album in flax crops, aiming to determine the optimal dose of MCPA 750%. Four doses (0.16, 0.21, 0.27, and 0.33 l/ha) were tested in Western Romania, with evaluations conducted 14, 28 and 42 days after application (DAT). The results of this study showed that the two species had similar responses to the action of the MCPA herbicide. The population reduction of the two species, from the flax agroecosystem, was influenced by the applied dose and the time interval. The MCPA herbicide had maximum efficacy at 28 DAT. Good effectiveness was registered in the variants treated with MCPA 0.27 l/ha and 0.33l/ha. As a result of the relatively small differences between the two doses, as well as the phytotoxicity observed in the plots treated with the 0.33 l/ha dose, it is recommended to use the 0.27 l/ha MCPA.
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