The Use of Organic Additives for Replanted Soil in Apple Tree Production in a Fruit Tree Nursery

How soil is used affects its production characteristics in the future. Under ARD (Apple Replant Disease) conditions, replanted soil’s physical, chemical and biological properties deteriorate. Their improvement possible through, for example, increasing content of organic matter soil. The study aimed to assess effect two additives on properties, as well vegetative growth apple trees ‘Gala Schniga SchniCo(s)’ cultivar grafted M.9 rootstock. experiment was performed 2021, western Poland, a nursery farm. were planted pots filled with from stations: previously (replanted soil) material (agricultural unused so far. To fertilise it, three different portions biocarbon Carbomat Eco conditioner added showed that grown had fewer side shoots, smaller leaf area lower mass leaves than those agricultural Furthermore, supplementation caused significant increase enzymatic activity respiration, increased rate photosynthesis improved several parameters determining strength trees.