THE EFFECT OF MICROBIOLOGICAL FERTILIZERS AND CHEMICAL PROTECTANTS ON THE SOWING QUALITIES OF AGRICULTURAL SEEDS

Abstract

The article presents data on the positive effect of microbiological fertilizers that contain nitrogen-fixing, phosphorus- and potassium-mobilizing bacteria, and have biofungicidal properties on the sowing qualities of spring wheat, peas, lentils and sunflower seeds. Microbiological preparations increased the germination energy of untreated spring wheat seeds to 96-100% (control – 92%); laboratory germination at the same time was at the level of germination energy or slightly higher. The germination characteristics of seeds treated with Tiara (thiamethoxam) and Stinger (tebuconazole) were lower - germination energy was 86-97% (control 84%); germination ability was 91-99% (control 96%). Indicators of the length, mass and volume of seedlings and roots in the course of the treatment with biological preparations were higher than the control variant. The best results were obtained when treating non-pretreated wheat seeds with biological preparations Azotovit + Phosphatovit, RizoBash, BioAzFC and Phytosporin-M. The germination energy and germination ability of peas during treatment with biological preparations increased, respectively, by 4-10% and 6-12%, by 2-10% and 3-8% (in the case of treated seeds). Sunflower seeds treated with Maxim andKruiser, were characterized by lower values of germination energy, which indicates a decrease in the activity of growth processes of the treated seeds, although no sharp changes in germination values were observed: 89-93% depending on the biological preparation (the highest when treated with Phytosporin-M). In general, the positive effect of the studied microbiological preparations on the growth activity of seeds, including those treated with protectants, was revealed, which indicates the compatibility of the preparations. However, the germination energy of the treated seeds was noticeably less, therefore, the protectants somewhat delay the germination process.

Keywords

• microbiological fertilizers
• chemical protectants
• germination energy
• seed germination ability