Influence of fertilizer Basacote on growth and development of Vaccinium corymbosum L.

Nutrient deficiencies at the stage of post-adaptation can slow down growth and development of plants ex vitro and can adversely affect the quality of planting material, as well as the productivity of plants. The aim of the research was to evaluate the influence of fertilizer Basacote 6M Plus (COMPO, Germany) on growth and development of blueberry at the stage of post-adaptation. The influence of fertilizer Basacote 6M Plus with the prolonged action on shoot growth, shoot formation and leaf area is determined. The most acceptable substrate at this stage is peat:agroperlite (3 : 1) with Basacote 6M Plus (1 g/l). The paper shows the results of applying mineral nutrition system for apple seedlings in a nursery. The aim of the research was to optimize the mineral nutrition system for apple seedlings in a fruit nursery in the South of Russia. The studies were carried out in the conditions of Krymsk Experimental-Breeding Station Branch of the Russian Institute of Plant Growing , in 2018 – 2019. The experiment scheme provided for the following options: control (without fertilizers); feeding system adopted on the farm (fertigation); combined nutrition system (fertigation and foliar feeding). During the experiment, an agrochemical analysis of the soil was carried out, on its basis mineral nutrition system was developed at the experimental site. The dynamics of the central shoot growth was studied and product groups of seedlings were recorded. It was established that the highest yield of standard seedlings with the best biometric indicators was noted in the variant of combined nutrition, in which two feeding methods were combined. Moreover, the difference in comparison with the control was – 17 %, while in comparison with the production control it was 10 %.