Method of growing scotch pine seedlings (pinus sylvestris l.) using forest seed waste

Abstract

The invention relates to forestry and is intended for use in growing planting material in the form of Scots pine (Pinus sylvestris L.) seedlings with closed root systems. The technical challenge is the need to develop an effective technology for producing high-quality planting material for coniferous trees, particularly Scots pine. The objective of the invention is to develop an optimal substrate composition that enhances the technical parameters of the grown seedlings. The technical result is an improvement in the quality of Scots pine seedlings by increasing their height. The result is achieved by the fact that in the method of growing seedlings with a closed root system, including the preparation of a substrate from peat with an additive, filling cassettes with the substrate, sowing seeds and care during cultivation, waste forest seed raw materials in the form of crushed husks of Siberian pine cones in the form of a mixture of particles no larger than 5 mm in size are used as an additive in obtaining the substrate, with the mass fraction of the said additive in the substrate being 20%. It has been experimentally established that this type of substrate provides the best quality indicators for seedlings - their height is 2.1 times greater than the control.