Author: Stancho Petrov, Tatyana Bileva
Issue 1
2. Graphic schemes for identification of harmful rodents
Author: Stancho Petrov
3. Deratization in practice. I. Deratization in a settlement.
Author: Stancho Petrov
4. Deratization in practice. II. Deratization in economic and industrial buildings.
Author: Stancho Petrov
5. Deratization in practice. III. Deratization in agriculture.
Author: Stancho Petrov
6. Deratization in practice. IV. Field deratization.
Author: Stancho Petrov
7. Deratization in practice. V. Control on effectiveness of deratization actions.
Author: Stancho Petrov
8. Adaptive capacity of agriculture: key concepts and attributes
Author: Aleksi Aleksiev
9. Dependency between content of active calcium and a number of basic soil characteristics
Author: Krasimir Trendafilov, Violeta Valcheva
10. Content and amount of active Ca in calcaeric and non – calcaeric saturated cynnamonic forest soils in Eastern Rhodope soil province
Author: Violeta Valcheva, Krasimir Trendafilov