DIGITALNA ARHIVA ŠUMARSKOG LISTA
prilagođeno pretraživanje po punom tekstu
| ŠUMARSKI LIST 11-12/2020 str. 29 <-- 29 --> PDF |
The use of sewage sludge and diatomite as growing medium in scots pine (Pinus sylvestris L.) seedling production and evaluation of its land performance Korištenje otpadnog mulja i diatomita kao medija u proizvodnji sadnica običnog bora (Pinus sylvestris L.) i procjena preživljavanja sadnica na terenu Murat Kose, Caglar Ugurlu, Omer Oncul, Fatih Demirci, Ilker Angin Summary Although several organic and inorganic substrates are added to growing media for improving its physical and chemical characteristics, the need for search of new materials and/or mixtures that reduces the high-priced peat content in substrates is still interesting. This study evaluated the feasibility of reducing the peat content in substrates by replacing it with different amounts of diatomite and sewage sludge for Scots pine seedling (Pinus sylvestris L.) growth and their land performance. In order to evaluate the feasibility of reducing the peat content in substrates by replacing it with different amounts of diatomite and sewage sludge, an experiment was carried out in a temperature-controlled greenhouse under natural light. To evaluate the land performance of Scots pine seedlings grown in different substrates, a trial was established between the years 2013-2017 in Sarıkamış, Kars (NE Anatolia). Sewage sludge application, due to its high organic matter and macro and micronutrient content, has improved the composition of the rhizosphere, thereby resulting in growth acceleration. As a result of the evaluations made in terms of both seedling morphological characteristics and land performance; the best performance was determined in the 9th (50%P+50%SS) and 3rd (75%SS+25%DE) mixtures. Key words: Sewage sludge, diatomite, peat, scots pine, morphological properties, land performance INTRODUCTION UVOD Several organic (peat, sawdust, bark, wood chips, etc.) and inorganic (pumice, zeolite, vermiculite, etc.) substrates are added to growing media for improving its physical and chemical characteristics, which promote plant growth. Since the growing medium relates to every cultural practice in the production of nursery crops, selection and/or formulation of medium is of great importance for sustainable production. A well-chosen growing media and media components should supply a high nutrient-holding capacity, desirable water holding and aeration characteristics, a good decomposition rate (C:N), lightweight, an electrical conductivity (EC) within range of 0.5-3.0 dS m-1, and a neutral pH (Csaba 1995; Olympios 1999; Ingram et al. 2003; Angin |