EFFICIENCY OF STIMULATION OF GROWTH OF VEGETABLE PLANTS IN THE JUVENILE PERIOD
The aim of the research. To establish the effectiveness of different methods of preparation of seeds and seedlings of basic vegetable plants (tomato, sweet pepper, eggplant, cucumber, asparagus, white cabbage). Methods. Field, laboratory, computational and statistical. Results. The results of efficiency of use of natural and synthetic growth regulators for their use on vegetable plants in the juvenile period on their influence on sowing qualities of seeds and productivity are resulted. The effectiveness of the use of various stimulants for the treatment of tomato and cucumber seeds for growing in film greenhouses, asparagus and artichoke for the production of cassette seedlings, as well as seedling treatment in the early stages. The influence of growth regulators of different nature and complex fertilizers on the stimulation of seeds and seedlings of vegetable plants is compared. The efficiency of using the microbial preparation Azotofit-r and organo-mineral fertilizer HelpRost rooting agent to stimulate growth processes has been proved. Conclusions. When treating the seeds of tomato and cucumber hybrids with Vimpel maxi with a solution concentration of 0.4–2.0 %, an increase in germination energy, seed germination, root length and increase in tomato yield by 18.2–21.1 %, cucumber – by 15, 2–20.0 %. To improve the sowing qualities of asparagus hybrid seeds, it is effective to soak the seeds with a mixture of succinic acid (3 ml/l) and MS microsalts, which increases the germination energy by 10.3% and germination by 3.4%. To improve the sowing qualities of artichoke seeds, hydrothermal treatment of seeds or the use of seed treatment with the microbial preparation Azotofit-r (30 ml/kg) is effective. When growing sweet and eggplant pepper seedlings, it is effective to carry out root feeding with the biological product Azotofit-r or organo-mineral fertilizer HelpRost rooting with a rate of 3.5 ml/l of water. Treatment of white cabbage seedlings in the phase of 2-3 true leaves with growth regulators Vimpel 2 (500 ml/ha) and Paslinia OK (50-200 ml / ha) improves plant growth and increases yields by 13.0–24.7 %.
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