The Journal "Agriculture and Forestry"
Časopis "Poljoprivreda i šumarstvo"
- Since 1955 -
Year 2018, Volume 64 Issue 3 (30.09.2018)
| Year : | 2018 |
| Volume : | 64 |
| Issue : | 3 (30.09.2018) |
| Authors : | Vesna MARKOSKA, Velibor SPALEVIC and Rubin GULABOSKI |
| Title : | A RESEARCH ON THE INFLUENCE OF POROSITY ON PERLITE SUBSTRATE AND ITS INTERACTION ON POROSITY OF TWO TYPES OF SOIL AND PEAT SUBSTRATE |
| Abstract : | Perlite is a generic name for an amorphous volcanic rock that expands by a factor of 4–20 when rapidly heated to (760–1100°C). Water trapped in the structure of the material vaporises and escapes, and this causes the expansion of the material to 7–16 times its original volume. The expanded material is a brilliant white, due to the reflectivity of the trapped bubbles. Expanded perlite has several attractive physical properties for commercial applications, including, low bulk density, low thermal conductivity, high heat resistance, low sound transmission, high surface area, and chemical inertness. The perlite supplies the ideal balance between air and water. Perlite is sterile, inert, non-toxic, non-decomposable and easy to handle with, enhanced water retention and aeration capacity. The application of substrates which improve the properties of the soils requires knowledge of their physical and chemical characteristics that are responsible for providing adequate support and a reservoir for air, water and nutrients. |
| For citation : | Markoska, V., Spalevic, V., Gulaboski, R. (2018): A research on the influence of porosity on perlite substrate and its interaction on porosity of two types of soil and peat substrate. Agriculture and Forestry, 64 (3): 15-29 |
| Keywords : | perlite, soil, porosity |
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