The effectiveness of using the humic preparation White Pearl on winter onion crops
Early maturity, productivity and marketability of the winter onion crop are determined by the characteristics of short-day varieties. The specific features of winter varieties cause the need to improve the technology of their cultivation; one of the main agricultural practices is the use of growth regulators. The studies carried out in 2019/2020 in the central zone of the Krasnodar Krai revealed the effectiveness of treating winter onion crops in the spring with the humic preparation White Pearl under any application regulations. Three-fold spraying of vegetative plants with a 1% solution of the preparation contributed to the formation of the largest assimilation surface area, increased the yield (4.7 t/ha compared to the control) and the outcome of marketable products by 6.5%