The effectiveness of using modern fertilizers when growing grape seedlings

Abstract

The experiment was carried out in the conditions of the Rostov region in 2021-2022. The application of foliar fertilizing with modern preparations Fertigrain Foliar and Juss Argentum Agro was studied. The treatment was carried out when growing grafted grape seedlings of the Sibirkovy and Varyushkin varieties; the phylloxera-resistant variety Kober 5BB was used as a rootstock. Research has shown that the length of the mature part of the growth increases: from 21.0 cm to 54 cm for the Varyushkin variety; from 28.7 cm to 90.3 cm for the Sibirkovy variety; the diameter of one-year growth also increased in variants with the use of fertilizers: from 5.0 mm to 5.9 mm in seedlings of the Varyushkin grape variety; from 5.1 mm to 9.0 mm in seedlings of the Sibirkovy grape variety. The yield of seedlings from school in all variants with the use of drugs was higher than in the control variants for the two studied varieties. The use of foliar treatment ensured an increase in the yield of seedlings from a grape school by 12.5-25.1% (for the Sibirkovy variety) and 4.4-18.4% (for the Varyushkin variety).