Humic preparations in the Macleaya х kevensis Turill cultivation in the conditions of the Western Caucasian region

Abstract

Over the past years highly effective phytopreparations with antibacterial activity have been created in Russia. Macleaya x kevensis Turill, which is a hybrid between heart-shaped Macleaya (Macleaya cordata) and small-fruited Macleaya (Macleaya microcarpa), can serve as a raw material for their production. To provide the pharmaceutical industry with this type of raw material in the conditions of the North Caucasian branch of VILAR, plantations of this crop have been created and research is being carried out to create a zonal technology for its cultivation. The basis of cultivatiov is the exogenous regulation of the processes of growth, development and bioproductivity of the plant organism through the use of organomineral and microfertilizers. In 2019–2022 experiments on testing humic fertilizers (Potassium Humate, Lignohumate) and their complexes with silicon-containing microfertilizer Siliplant were carried out on the Macleaya plantation. Treatments with these preparations were carried out: in the 1st year of the growing season – at the beginning of regrowth and after 30 days, in the 2nd and 3rd years of the growing season – at the beginning of the growing season and after the first harvesting of raw materials for growing plants. As a result of the tests, an increase in the growth and development of Macleaya plants was observed. The activation of growth processes contributed to an increase in crop yield in the first year with a single cut by 0.18–0.19 t/ha (17–18%), in the 2 and 3 years of the growing season by the sum of two cuts by 1.50–1.76 t/ha (20–24%) and the collection of alkaloids per hectare by 21–27%.

Keywords

• macleaya х kevensis turill
• potassium humate
• lignohumate
• siliplant
• application rates
• processing time
• phenological phases
• growth
• plant development
• leaf area
• productivity
• alkaloids