Waste water sewage sludge fertilization effect on soil properties and short rotation tree plantation productivity

Lazdina, D., Latvian State Forestry Research Inst. Silava, Salaspils; Liepa, I., Latvia Univ. of Agriculture, Jelgava; Lazdins, A., Latvian State Forestry Research Inst. Silava, Salaspils

Waste water sewage sludge fertilization effect on soil properties and short rotation tree plantation productivity

2007

Lazdina, D., Latvian State Forestry Research Inst. Silava, Salaspils (Latvia) | Liepa, I., Latvia Univ. of Agriculture, Jelgava (Latvia) | Lazdins, A., Latvian State Forestry Research Inst. Silava, Salaspils (Latvia)

Main factors raised interest about biomass as the source of energy increase renewable resource demand in the context of Green house gases emissions decrease and the problem of environmentally friendly and efficient waste utilization. Legislation of waste water sewage sludge use is becoming stricter now. After cutting away top peat layer of peat quarry, the owners have two alternatives: the first, to flood the fields and transform them into bogs, the second, to carry out some economic activities - one of which must be field afforestation with traditional or fast growing tree species. Before planting trees it is necessary to fertilize the fields, and waste water sewage sludge will be one of potential fertilizers. Aims of research were to determine the impact of waste water sewage sludge fertilization 10 t haE-1 on tree growth and soil properties. Concentration changes of N, P, K, and Ca, Mg in different depth and concentration of S and total C and heavy metal in soil top layer during the year 2006 were determined. The effect of fertilization on tree growth and stock was determined by the non-destructive method, data were calculated by height and root core diameter of trees. Fertilization stimulates tree growth as weed growth too. On peat areas observed soil acidity decreasing. Despite of sufficient amount of nutrients willows were not suitable for peat fields. To avoid increasing of heavy metals content in soils, only qualitative waste water sewage sludge or waste water sewage sludge composts is acceptable for fertilization.

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Mots clés AGROVOC

aguas residuales arbre forestier fertilisation fertilizer application forest plantations forest trees latvia letonia lettonie lodos residuales peat soils recherche research sewage sludge soil chemicophysical properties sol tourbeux suelo turboso wastewater

Informations bibliographiques

Editeur

Latvia University of Agriculture

Pagination

p. 143-150

D'autres materias

Aplicacion de abonos; Arboles forestales; Propriete physicochimique du sol; Eau usee; Investigacion; Propiedades fisico - quimicas suelo; Plantation forestiere; Plantacion forestal; Boue residuaire

Langue

anglais

Note

Summary (En)

Creator variant: Lazdiņa, D., Lazdiņš, A.

3 tables, 3 fig., 30 ref.

Type

Conference; Summary

Source

Research for Rural Development 2007. International Scientific Conference Proceedings, Latvia Univ. of Agriculture, Jelgava (Latvia).- Jelgava (Latvia): Latvia University of Agriculture, 2007. International Scientific Conference: Research for Rural Development 2007,International Scientific Conference: Research for Rural Development 2007, 13, Jelgava (Latvia), 16-18 May 2007.- p. 143-150

Conférence

International Scientific Conference: Research for Rural Development 2007, 13, Jelgava (Latvia), 16-18 May 2007

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