B. Frih1*, A. Oulmi1, A. Guendouz2, S. Benkadja3 1Department of Biology and Plant ecology, VRBN Laboratory, Farhat Abbas Sétif University 2National Institute of Agronomic Research of Algeria (INRAA), Sétif Unit 3Department of Biology and Plant ecology, VRBN Laboratory, Farhat Abbas Sé

S. Benkadja1*, K. Maamri2, A. Guendouz3, A. Oulmi4, B. Frih4 1Department of Agronomy, VRBN Laboratory, Faculty of Nature and Life Sciences, Farhat Abbas Setif University 1, Algeria 2Department of Agronomy, Faculty of Nature and Life Sciences, Mohamed El Bachir El Ibrahimi University o

G. Delchev Department of Plant Production, Faculty of Agriculture, Trakia University, Stara Zagora, Bulgaria (Manuscript received 31 Mai 2021; accepted for publication 13 December 2021) Abstract. The research was conducted during 2018 – 2020 on pelvic vertisol soil type. Under i

V. Ivanova*, T. Alexandrov Dobrudzha Agricultural Institute, 9520 General Toshevo, Bulgaria (Manuscript received 19 March 2021; accepted for publication 15 September 2021) Аbstract. The response of 1262 durum wheat lines to the cause agent of leaf rust Puccinia triticina was studied.

P. Nikolov1*, G. Delchev2 1Institute of Agriculture and Seed Science “Obrazcov Chiflik”, 7007 Ruse, Bulgaria 2Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 31 May 2021; accepted for publication 23 July 2021)

G. Panayotova1*, S. Kostadinova2, S. Stefanova-Dobreva3, A. Muhova3 1Department of Plant production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria 2Department of Agrochemistry and Soil Science, Faculty of Agronomy, Agricutural University, 4000 Plovdiv, Bulgari

Gr. Delchev*, S. Angelova Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 5 July 2018; accepted for publication 1 February 2019) Abstract. The aim of the study was to investigate the productivity and yield sta

Gr. Delchev*, M. Delcheva Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 17 May 2018; accepted for publication 16 October 2018) Abstract. Theresearchwasconductedduring2012-2014onpellicvertisolsoiltype.Investi

Gr. Delchev, D. Delchev   Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria   DOI: 10.15547/ast.2018.03.043 (Manuscript received 25 May 2018; accepted for publication 20 July 2018)   Abstract. The research was conducted du

L. Plescuta* Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 30 June 2017; accepted for publication 10 October 2017) Abstract. The effect of nitrogen-phosphorus fertilization at nitrogen rates 0, 80, 120 and 1