Effect of composts based on brown coal on the growth of roots of strawberry plants cv. ‘Elsanta’ and their colonization by arbuscular mycorrhizal fungi

摘要

In June 2010, strawberry plants cv. ‘Elsanta’ were planted in stoneware pots in the Experimental Field of Warsaw University of Life Sciences in Skierniewice. The following fertilization combinations were included in the experiment: control (NPK), brown coal with whey with oyster mushroom, brown coal with Vinassa with oyster mushroom, brown coal with whey with peat, brown coal with Vinassa with peat, brown coal with oyster mushroom, brown coal with whey, brown coal with whey with oyster mushroom with peat, brown coal with whey with shiitake mushroom, brown coal with Vinassa with shiitake mushroom, Brown coal with Vinassa, brown coal with shiitake mushroom, brown coal with shiitake mushroom with peat. The combination of brown coal with whey increased the fresh and dry weight of roots as well as root length and volume compared to the control combination with NPK. The application of brown coal with Vinassa and peat had a positive effect on increasing the root biomass, and the number of roots tips. The use of the composts and brown coal had a positive effect on root growth characteristics and mycorrhizal frequency in the roots of plants cv. ‘Elsanta’. The combinations of brown coal with Vinassa and peat and brown coal with whey and oyster mushroomhad the greatest impact on root growth and the colonization of the roots of strawberry plants cv. ‘Elsanta’ by arbuscular mycorrhizal fungi. Application of composts (based on brown coal) alone or in combination with reduced rates of NPK mineral fertilization can be an effective alternative in the growing of fruit and other horticultural crops.