STUDIU COMPARATIV AL INFLUENŢEI DIFERITELOR TRATAMENTE DE ERBICIDARE ASUPRA CULTURII DE CEAPĂ

A comparative study was performed concerning the action of three herbicides (Pantera 40 CE, Fusilade Super and Agil 100 EC) on onion culture. The Amstrong onion hybrid was used on clay - aluviovertic chernosem, with NPK fertilization (N80P80K80) during the preparation of the germinative bed. The unfavorable climatic conditions infl uence the effi cacy of the post-emergent applied herbicides, but signifi cant differences were recorded between variants treated with different products. When Pantera 40 CE was used, phytotoxicity phenomena materialized by temporary discoloration of the plants were not recorded, compared to the results obtained when the other herbicides were used. The use of Pantera 40 CE led to the most important production gain, with 9.8% compared to Fusilade super and 4.8% with Agil 100 EC.Testarea comparativa a actiunii a trei erbicide (Pantera 40 CE, Fusilade Super si Agil 100 EC) asupra culturii cepei a constituit obiectul prezentului studiu. A fost utilizat hibridul de ceapa Amstrong, iar solul a fost reprezentat de cernoziom argilos aluviovertic. Pe parcursul pregatirii patului germinativ s-a practicat o fertilizare NPK (N80P80K80). Conditiile climatice nefavorabile au infl uentat efi cienta erbicidelor aplicate postemergent, manifestandu-se diferente semnifi cative intre variantele experimentale in care s-au efectuat tratamente cu diverse produse. Spre deosebire de rezultatele obtinute ca urmare a aplicarii celorlate doua erbicide, in cazul utilizarii erbicidului Pantera 40 CE nu s-a inregistrat manifestarea fenomenulului de fi totoxicitate, materializat prin decolorarea temporara a plantelor. Administrarea erbicidului Pantera 40 CE a condus la obtinerea celei mai mari productii de ceapa la hectar, superioara cu 9.8% celei obtinute in cazul utilizarii ebicidului Fusilade super si cu 4.8% fata de cea obtinuta cand s-a utilizat Agil 100 EC