Influence of microbiological fertilizers on yield and general condition of plants of perspective blue honeysuckle varieties

Abstract

The purpose of the research was to study the infl uence of microbiological nitrogen and phosphorus fertilizers on the yield and general condition of blue honeysuckle plants on sod-podzolic soils in the conditions of the Republic of Mari El. The experiment was conducted according to the following scheme – factor A– varieties: Goluboye Vereteno (control), Elite form No. 50, Pamiati Silaeva, Nizhegorodsky Dessert, Elite form No. 81, Podarok Dergunovu, Lakomka; factor B – fertilization: control (without fertilizer), bacterial fertilizers Azotovit, Phosfatovit, Azotovit + Phosfatovit, the rate of application in each option was 14 l/ha, water – 3000 l/ha, ammofoska (N12, P15, K15), the application dose was 300 kg/ha. The repeatability of the experiment was 3-fold, the placement of plots was rendominized, the term for applying microbiological and mineral fertilizers was the fi rst decade of May, once. The application was superfi cial. Joint application of “Azotovit” and “Phosphatovit” as an early spring top dressing, it allows to signifi cantly increase the yield of blue honeysuckle berries, the increase was 0.4 t/ha with a yield of 2.0 t/ha. The use of bacterial fertilizers Azotovit and Phosphatovit in the initial period of growth of honeysuckle plants has a positive eff ect on their further development and general condition, as well as increases the potential yield. The highest average annual increase was obtained in the option of joint application of bacterial nitrogen and phosphorous agrochemicals in the elite form No. 81 variety (36 cm), which exceeded the control (Goluboye Vereteno variety on an unfertilized background) by 2.1 times.