CENTRE ON THE PROBLEMS OF ECOLOGY AND PRODUCTIVITY OF FORESTS
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CENTRE ON THE PROBLEMS OF ECOLOGY AND PRODUCTIVITY OF FORESTS |
RUSSIAN ACADEMY OF SCIENCES |
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Tebenkova D.N., Lukina N.V., Vorobyev R.A., Orlova M.A., Gagarin Yu.N. Germination and biometric parameters of seedlings grown up on substrates of solid waste from pulp and paper industry // Forest Science (Lesovedenie). 2014. No 6. С.31-40. Germination and biometric parameters (quantity and length of needles, root length, trunk height, root neck diameter, seedling mass fractions) of pine (Pinus silvestris L.) and spruce (Picea abies L. Karst) seedlings are evaluated. The seedlings grew up on a mix of peat with substrates prepared of wastes of pulp and paper (P&P) mill, applying chlorine-free bleaching technology, conversed by worms (Eisenia foctida). The wastes included the active sludge, mixes of soil, bark and slivers from spills production crushed together in chopper, and coniferous sawdust. The share of P&P waste substrates was 20, 50, and 100% volumetric. The parameters of pine and spruce seedlings grown on the small amount (20%) of the substrate reached the parameters of the control seedlings which grew on fertilized peat in most cases. The above to belowground ratio of the seedlings were also similar to the control when small amount of the substrate is used. The more the substrates share the less the seedlings parameters compared to the control. Probable cause is the offset of nitrogen status of substrates toward nitrate, which is atypical for natural forest soils. Pulp and paper wastes, pine seedling, spruce seedling, germination, needles, root system, trunk, biomass.. |
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