Bulgarian Journal of Agricultural Science
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CHANGES IN CHEMICAL COMPOSITION OF SOYBEAN GLYCINE MAX (L.) MERRILL PLANT AFTER PRESOWING TREATMENT OF SEEDS WITH INSECTICIDES
V. Vasileva
Abstract: Changes in some charatcteristics of chemical composition of aboveground and root mass of soybean after presowing treatment of seeds with insecticides were studied in a pot trial carried out at the Institute of Forage Crops, Pleven, Bulgaria (2003-2004). Soybean cultivar Pavlikeny 121 was used and the next insecticide preparations were tested: Gaucho 600 FS (600 g.L-1 imidacloprid) (1, 2 and 3 L.100 kg-1 seeds), Carbodan 35 ST (350 g.L-1 carbofuran) (1, 2 and 3 L.100 kg-1 seeds), and Promet 400 CS (400 g.L-1 furathiocarb) (3 L.100 kg-1 seeds) (standard). It was found that Gaucho 600 FS at the dose of 1 L.100 kg-1 seeds increased crude protein content in aboveground mass by 14.0 g.kg-1 dry matter (DM) and in root mass by 22.6 g.kg-1 DM as compared to untreated control. Crude fiber content in aboveground mass increased by 28.0 g.kg-1 DM when Carbodan 35 ST at the dose of 3 L.100 kg-1 seeds was applied and decreased in root mass by 74.5 g.kg-1 DM for the same insecticide at the dose of 2 L.100 kg-1 seeds. Calcium content in aboveground mass was by 1.9 g.kg-1 DM higher as compared to untreated control for Gaucho 600 FS at the dose of 1 L.100 kg-1 seeds. When Carbodan 35 ST at the dose of 1 L.100 kg-1 seeds was applied, phosphorus content in aboveground mass increased by 0.20 g.kg-1 DM and in root mass by 0.28 g.kg-1 DM for Gaucho 600 FS at the dose of 1 L.100 kg-1. Chemical composition of plant biomass did not include the amount of possible residues after the using of insecticides.
Keywords: aboveground mass; chemical composition; presowing treatment; root mass; soybean
Date published: 2017-10-11
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