Author(s):
1. Nenad Malić, EFT – Rudnik i Termoelektrana Stanari, Republic of Srpska, Bosnia and Herzegovina

Abstract:
The research were conducted in deposols and on the reclamated land in lignite mine Stanari. Grassland seeding is the important part of the biological reclamation phase. The main task of the formed grasslands is to improve the mechanical, chemical and biological properties of the deposol in the reclamation process. The fertility of Stanari deposol is extremely low in comparison to the natural soil. Grassland seeding through direct type of reclamation was conducted in 2008, 2011 i 2012. Agromeliorative measures were used in grassland seeding and grassland care process. The conducted researches include the changes in the chemical properties in the surface layer of the treated deposol in the reclamation process. Laboratory analysis of this technogenic soil were carried out before the reclamation and sowing started, and then in the process of reclamation at the end of 2012. A total of eleven average soil samples were analysed. The following properties were analysed: rN, organic matter content, humous, nitrogen, plant available P2O5, K2O and soil adsorption complex. Significant improvement in soil reaction has not been identified. Positive changes in the content of organic matter (average increase of 100%) have been identified, which is a positive characteristic in reclamation of the deposols. Slight increase in the concentration of physiologically active P2O5 and K2O is the result of the application of mineral fertilizers. In the reclamation process adsorption capacity and degree of saturation of alkali cations in the deposols were increased. On the experimental plots where reclamation measures were implemented, there is a slight improvement in most of the chemical characteristics of the meliorated deposol. Proper selection of the agromeliorative and other measures is required in the reclamation process. Well based artificial grasslands contribute to the creation of quality recultisol. Further increase of the recultisol fertility is directly related to the applicable measures of timely grassland care.

Key words:
deposol, reclamation, soil, chemical properties, Stanari

Thematic field:
Agroekologija i organska poljoprivreda/ Agroecolog

Date of abstract submission:
30.01.2013.

Number of visits:
354

Conference:
II međunarodni simpozijum i 18-to naučno-stručno savjetovanje agronoma Republike Srpske