Influence of Some Herbicides in Maize on the Yield and Quality of Barley and Fodder Beet | Влияние на някои хербициди при царевицата върху добива и качеството на ечемик и кръмно цвекло
2010
Zhelyazkov, I., Agricultural University, Plovdiv (Bulgaria) | Kalinova, Shch., Agricultural University, Plovdiv (Bulgaria) | Zhalnov, I., Agricultural University, Plovdiv (Bulgaria) | Dimitrova, M., Agricultural University, Plovdiv (Bulgaria)
The influence of four herbicides in maize on the yield and quality of the succeeding crops barley and fodder beetroot was studied in a three-year field experiment conducted in the test-field of the Agrarian University - Plovdiv. The following herbicides were applied: 750 g/kg izoxaflutol Mеrlin 750 VG at a dose of 125 g/ha; 840 g/l acetochlor Gardian at a dose of 2.5 l/ha; 600 g/l 2,4 D esther Maton 600 EK at a dose of 1.1 l/ha, and 40 g/l nicosulphuron Mistral 4 SK at a dose of 1,3 l/ha. The herbicides impact on a large number of quality and quantity indices in crops was studied: absolute mass, hectoliter mass, grain yield, absolute dry matter, starch, and protein with respect to the barley, and root length, root volume, root weight, yield of roots, absolute dry matter, cellulose, total nitrogen, phosphorus, potassium calciumand and magnesium with respect to the fodder beet. The highest yield of barley an fodder beet was obtained in the case in which the maize in the preceding year was treated with acetochlor and 2,4 D esther, respectively 4.684 t/ha and 18.036 t/ha, compared to yield of 2.520 t/ha barley and 8.696 t/ha fodder beetroot, grown after non-treated with herbicides maize. With respect to the quality and quantity indices of barley, no considerable differences were observed between the treated plants and non-treated control plants. With respect to the quality indices of fodder beet, no considerable differences were observed between the variants as well, except for the amount of magnesium and calcium in the non-treated control plants and the variants treated with izoxaflutol.
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