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List of research and applied [App.] publications on crop rotation research

(Last update: June 2007)

 

124.  [App.] Tonev, T.K. & L. Shtereva. 2006. Reaction to water stress in (winter) wheat and corn, cultivated as long-term continuous crop, Nat. Conf. Sept. 12, 2006, Sofia, Book of reports, 86-90 [In Bulg. // 2 fig. // Orgiginal title: Reakcija na woden stres na pshenitsa i tsarevitsa, otglezhdani kato monokultura].

123.  [App.] Tonew, T.K. 2006. Untypical saturation of crop rotation (in Bulgaria), Zemedelie Plus, No. 6-7: 4-6 [In Bulg. // Original title: Netipichno nasishtane na polskite seitboobrashtenija u nas].

122.  Tonev, T.K. 2006. Agronomy characteristics of high yielding sunflower crop (Resume of Research for Habilitation), Res. Commun. of U.S.B. branch Dobrich, Vol. 8 (Electronic version) [In Engl. // 26 ref.] – full text on-line.

115.  [App.] Tonev, T.K. 2006. Fertilization in crop rotation couples winter wheat – sunflower and sunflower – winter wheat, The New Farmer, No. 386/18.04.2006, p. 5-6 [In Bulg. // Original title: Torene pri seitbooborotnite dvoyki pshenitsa – sl’nchogled I sl’nchogled - pshenitsa].

112.  Tonev, T.K. 2005. Agronomy characteristics of high productive crop of sunflower, Dissertation for habilitation, Dobrich, 305 p. [In Bulg. // 86 tabl., 38 fig., 327 ref. // Original title: Agronomicheska harakteristika na visoko produktivniya posev ot sl’nchogled].

110.  Tonev, T.K., H. Kirchev & V. Koteva. 2005. Dynamics of winter wheat yield after reduction of NPK rates in crop rotation, Bulg. J. Agric. Sci., 11: 539-550 [In Engl. // 3 tabl., 1 fig., 15 ref.]. – on-line abstract

105.  Donkova, D. & T.K. Tonev (2005) Post-harvest residues of winter wheat and corn and their incorporation depending on nitrogen fertilization; I. Amount of post-harvest residues, Bulg. J. Agric. Sci., 11, No. 1: 11-22. [In Engl. // 2 tabl., 3 fig. // 23 ref.]. – on-line abstract

104. Tonev, T.K. 2005. Seed oil content depending on previous crop, previous-year and direct applied nitrogen rate in sunflower, Res. Commun. of U.S.B. branch Dobrich (Nauchni s'obshtenija na SUB kl. Dobrich) – Electronic version, vol. 7 (1) [In Bulg., abs. in Engl. // 2 tabl., 2 fig., 11 ref. // Original title: S'd'rzhanie na maslo v semenata v zavisimost ot predshestvenika, predshestvashtata i prjakata azotna norma pri sl'nchogleda] – on-line full text

103.  Tonev, T., S. Parveva & M. Stoyanov. 2004. Economic efficiency of nitrogen fertilization in growing winter wheat after grain legume predecessors, Soil Science, Agrochemistry and Ecology (Pochvoznanie, agrohimija i ekologija), vol. XXXIX, No. 3: 70-78. [In Bulg., abs. in Engl. // 3 tabl., 10 ref. // Original title: Ikonomicheska efektivnost na azotnoto torene pri otglezhdane na pshenitsa sled z'rneno-bobovi predshestvenitsi].

102.  Nankova, M. & T.K. Tonev. 2004. Concentration of main macroelements and their distribution in plants during development stages according to previous crop and direct nitrogen fertilization of sunflower; I. Concentration and re-distribution of nitrogen, Field Crops Stuidies, vol. 1 (3): 439-447. [In Bulg., abs. in Engl. // 3 tabl., 2 fig., 6 ref. // Original title: Kontsentratsija na osnovnite makroelementi i razpredelenieto im po fazi na razvitie v zavisimost ot predshestvashtoto i prjakoto azotno torene pri sl;nchogleda; I. Kontsentratsija i prerazpredelenie na azota].

101.  Penchev, PN, B. Gramatikov & TK Tonev. 2004. Effect of some agrotechnical factors on the productivity of winter wheat variety Milena in South-East Bulgaria, Field Crops Studies, vol. 1 (1): 141-145. [In Bulg., abs. in Engl. // 2 tabl., 8 ref. // Original title: Vlijanie na njakoi agrotehnicheski faktori v'rhu produktivnostta na zimna pshenitsa sort Milena v Yugoiztochna B'lgarija].

100.  Kasimov, I. & T. Tonev. 2004. Influence of previous crop and mineral fertilization on the productivity of new winter wheat varieties under the extreme conditions for sowing, wintering and spring vegetation during 2002/03, Res. Commun. of U.S.B. branch Dobrich, vol. 6: 78-84. [In Bulg., abs. in Engl. // 4 tabl., 1 fig., 3 ref. // Original title: Vlijanie na predshestvenika i mineralnoto torene v'rhu produktivnostta na novi sortove pshenitsa pri ekstremalnite uslovija z seitba, prezimuvane i proletna vegetacija prez 2002/03 g.]. – on-line abstract

97.  Stoeva, I. & T. Tonev. 2003. Yield and quality performance of winter wheat variety Pliska during 15 years of cropping with different fertilization level and rotation, Bulg. J. Agric. Sci., 9, No. 3: 297-303 [In Engl. // 4 tabl., 1 fig., 12 ref.]. – on-line abstract

91.  Donkova, D. & T. Tonev. 2002. Influence of postharvest plant residues incorporation on the yield and the effect of nitrogen fertilization in winter wheat and corn, Proc. Of the Scientific Session of Jubilee, May 21-22, 2002, Sadovo - Plovdiv, vol. 1: 277-281 [In Bulg., abs. in Engl., // 3 tabl., 1 fig, 7 ref. // Original title: Wliqnie na inkorporiraneto na sledzh'tveni ostat'tsi v'rhu dobiva i efekta ot azotnoto torene pri pshenitsa i tsarevitsa].

88.  Tonev, T. 2002.Comparative study of sorghum and millet due to their participation in Dobroudja crop rotations, Nauchni s’obshtenia na SUB kl. Dobrich (Res. Commun. of USB branch Dobrich), 4 (1): 64-70 [In Bulg., abs. in Engl. // 5 tabl., 1 fig., 19 ref. // Original title: Sravnitelno izpitvane na sorgo i proso vuv vruzka s uchastieto im v polskite seitboobrashtenija v Dobrudja].

87.  Kirchev, H. & T. Tonev. 2002. Productivity of sunflower due to reduction of the mineral fertilization in crop rotation, Nauchni s’obshtenia na SUB kl. Dobrich (Res. Commun. of USB branch Dobrich), 4 (1): 58-63 [In Bulg., abs. in Engl. // 4 tabl., 1 fig., 8 ref. // Original title: Produktivnost na slun`ogleda pri reducirano mineralno torene v seitboobrashtenieto].

86.  Tonev, T. 2001. Direct and indirect effect of intensification the fields with spring crops by forcrop under the conditions of Dobroudja, Ann. Sci. Session “50 Years Dobroudja Agric. Institute – General Toshevo”, June, 1, 2001, Dobrich, vol. 2: 611-620. [In Bulg., abs. in Engl. // 5 tabl., 1 fig., 10 ref. // Original title: Prjak i kosven efekt ot uplutnjavane s predkultura na pole s proletna kultura v uslovijata na Dobroudja].

84.  Tonev, T. 2001. Relationships between previous-year and direct applied nitrogen rates in rotation couple with winter wheat and sunflower, Sci. Session "80 years high agricultural education in Bulgaria", Nov., 15-17, 2001, Plovdiv, AU - Plovdiv, Nauchni trudove (Sci. Works), vol. XLVI, No. 2: 197-204. [In Bulg., abs. in Engl. // 4 tabl., 15 ref. // Original title: Zavisimosti mezhdu predshestvashtata i prjakata azotni normi v seitbooborotni dvojki s pshenica i slunchogled].

83.  Tonev, T.K. 2001. Special features and role of crop rotation in the ecological farm: Review, Nauchni s’obshtenia na SUB kl. Dobrich (Res. Commun. of USB branch Dobrich), 3: 53-59 [In Bulg., abs. in Engl. // 6 tabl., 12 ref. // Original title: Otlichitelni osobenosti i rolja na seitbooborota v ekologichnata ferma: Obzor].

82.  [App.] Tonev, T. 2000. The wheat and the crop rotation, Dobroudja tribune, LVII, 185 (7621), Sept., 26, 2000, p. 3 [In Bulg. // Original title: Pshenicata i seitboobrashtenieto].

80.  Tonev, T. 2000. Possibility for reduction of N-rate in sunflower under the conditions of natural water supply and due to previous-year applied N-rate, Proc. Of Symposium “Rehabilitation of grass land and control of desertification in dry area, Guyuan, China, July 1-3, 2000, 212-222. [In Engl. // 4 tabl., 2 fig., 15 ref.].

72.  Tonev, T. 1999. Correlation between previous and direct nitrogen fertilizer application in wheat under the conditions of Northeastern Bulgaria, Selskostopanska nauka (Agricultural Science), 37 (1): 18-23. [In Bulg., abs. in Russ., Engl. // 3 tabl., 16 ref. // Original title: Zavisimosti mejdu predshestvashtoto i pryakoto azotno torene pri pshenitsata v usloviyata na Severoiztochna B’lgaria].

68.  Tonev, T. 1999. Study on the part of lucerne in formation of the productivity of 8-year forage rotation, Nauchni s’obshtenia na SUB klon Dobrich (Res, Commun. of USB branch Dobrich), 1: 64-68. [In Bulg., abs. in Engl. // 2 tabl., 2 fig, 6 ref. // Original title: Izsledvane na dela i rolyata na lyucernata v’rhu produktivnostta na furajen seitbooborot].

65.  Tonev, T. 1998. Position and role of dry bean crop in the crop rotation, In: Genchev, D. (Ed.) Advances in common bean (Ph. vulgaris) research in Bulgaria, Proc. Of Bulgarian workshop in I.W.S. near Gen. Toshevo, Apr. 3, 1998, 3: 24-27. [In Engl. // 4 tabl., 1 fig., 7 ref.].

59.  Tonev, T. 1997. Stability of productivity of the wheat, grown in different crop rotation, Nauchni trudove na W.S.I. - Plovdiv (Sci. Works of H.A.I. - Plovdiv), 42 (1): 243-246. [In Bulg., abs. in Engl. // 2 tabl., 6 ref. // Original title: Stabilnost na produktivnostta na poseva ot pshenitsa, otglejdana v razlichni tipove seitboobrashtenia].

57.  Shterev, P. & T. Tonev. 1997. Gross return of fertilizers energy used in winter wheat cultivation in different crop rotations, Ikonomika i upravlenie na selskoto stopanstvo (Agricultural Economics and Management). 42 (7-8): 30-34. [In Bulg., abs. in Engl. // 2 tabl., 1 fig., 12 ref. // Original title: Brutna v’zvr’shtaemost na vlojenata s torovete energia pri otglejdane na pshenitsa w razlichni polski seitboobrashtenia].

54.  Shterev, P., G. Milev & T. Tonev. 1997. Energy valuation of winter wheat production under the conditions of Dobroudja region, due to predecessor, its inoculation and applied mineral fertilization, , Proc. Of 27th Ann. ESNA/IUR Meeting, Aug. 29 - Sept. 2, 1997, Ghent, Belgium, 107-113. [In Engl. // 3 tabl., 1 fig., 12 ref.].

53.  Tonev, T. 1997. Theoretical relationships between applies previous and direct nitrogen fertilization in winter wheat under the conditions of slightly leached chernozem in Dobroudja, Proc. Of 27th Ann. ESNA/IUR Meeting, Aug. 29 - Sept. 2, 1997, Ghent, Belgium, 93-99. [In Engl. // 3 tabl., 2 fig., 12 ref.].

52.  Tonev, T. 1997. Total energy production by crop rotations of diverse type in Dobroudja, Rasteniev’dni nauki (Plant Sciences), 34 (3-4): 58-63. [In Bulg., abs. in Russ., Engl. // 4 tabl., 12 ref. // Original title: Brutna energiyna produktivnost na razlichni tipove z’rneni seitboobrashteniya v Dobrudja].

50.  [App.] Tonev, T. 1996. Choice of field for coming sowing of winter wheat, B’lgarski fermer (Bulgarian Farmer), No. 254, p. 13. [In Bulg. // Original title: Izbor na pole za predstoyashtata seitba na pshenitsa].

48.  Tonev, T. 1996. Influence of nitrogen rate in sunflower on the effect of nitrogen fertilization in subsequent winter wheat, HELIA, 19 (25): 63-70. [In Engl., abs. Sp., Fr. // 5 tabl., 16 ref.].

47.  Tonev, T. 1996. Productive potential of cereal crop rotations in Dobroudja; I. Yield of grain and biological yield, Rasteniev’dni nauki (Plant Sciences), 33 (9) 10-16. [In Bulg., abs. in Russ., Engl. // 4 tabl., 18 ref. // Original title: Produktiven potentsial na razlichni tipove z’rneni seitboobrashteniya v Dobrudja; I. Dobiv na z’rno i biologichen dobiv].

45.  Tonev, T. 1996. Relationships between previous and direct nitrogen fertilization in winter wheat grown after grain legumes; Effect on the grain yield, Bulgarian Journal of Agric. Sci., 2: 429-438. [In Engl. // 4 tabl., 17 ref.].

42.  Nankova, M., T. Tonev & L. Shtereva. 1996. Humus fraction composition of slightly leached chernozem depending on durationof fertilization and rotation type; II. Influence of rotation type, Pochvoznanie, agrochimia i ekologia (Soil Sci., Agrochemistry and Ecology), 31 (part III): 115-117. [In Bulg., abs. in Engl. // 3 tabl., 9 ref. // Original title: Fraktsionen s’stav na humusa na slabo izlujen chernozem v zavsimost ot prod’ljitelnoto torene i tipa na seitboobrashtenieto; II. Vliyanie na tipa na seitboobrashtenieto].

41.  Tonev, T. 1996. Comparative evaluation of the total productivity of crop rotation links of the type “grain legume crop - wheat” as affected by nitrogen fertilization, Rasteniev’dni nauki (Plant Sciences), 33 (2): 22-27. [In Bulg., abs. in Russ., Engl. // 2 tabl., 2 fig, 13 ref. // Original title: Sravnitelna otsenka na brutnata produktivnost na seitbooborotni zvena ot vida z’rneno-bobova kultura - pshenitsa s prilagane na azotno torene].

39.  Tonev, T. & P. Penchev. 1996. Study on some agronomy factors in two-range winter barley in Dobroudja region, Nauchni trudove na IE - Karnobat (Sci. Works of I.B. - Karnobat), 7: 263-266. [In Bulg. // 4 tabl., 4 ref. // Original title: Prouchvane v’rhu nyakoi elementi ot agrotechnikata na dvureden echemik v Dobrudja].

38.  Tonev, T. & L. Shtereva. 1996. Results of growing wheat in long-term monoculture and two-field in 1983-1992 period, Pochvoznanie, agrochimia i ekologia (Soil Science, Agrochemistry and Ecology), 31 (1): 29-33. [In Bulg., abs. in Engl. // 5 tabl., 1 fig., 17 ref. // Original title: Rezultati ot otglejdane na pshenitsa v prod’ljitelna monokultura i dvupolka za perioda 1983-1992 godina].

36.  [App.] Tonev, T. 1995. Crop alternate - problem No. 1 in sunflower, B’lgarski fermer (Bulgaria farmer) // Appx. Agronom (Agronomist), No. 21 (551): p. 4. [In Bulg. // Original title: Reduvaneto - problem No. 1 pri sl’nchogleda].

35.  [App.] Tonev, T. 1995. Wheat have the principle part in the crop rotation, B’lgarski fermer (Bulgarian farmer) // Appx. Agronom (Agronomist), No. 20 (550): p. 5. [In Bulg. // Original title: Pshenitsata igrae glavna rolya v seitbooborota na kulturite].

34.  Tonev, T. 1995. Influence of nitrogen fertilization on productivity of rotation link “cereal predecessor - winter wheat”; III. Effect on mass energy productivity of rotation link, In: Breeding and cultivation of wheat, sunflower and legume crops (1st Balkan Symposium), June, 26-29, 1995, Albena-I.W.S., Bulgaria, 504-508. [In Engl. // 2 tabl., 1 fig., 7 ref.].

33.  Tonev, T. & M. Gospodinov. 1995. Influence of nitrogen fertilization on productivity of rotation link “cereal predecessor - winter wheat”; II. Effect on grain yield of coming wheat, In: Breeding and cultivation of wheat, sunflower and legume crops (1st Balkan Symposium), June, 26-29, 1995, Albena-I.W.S., Bulgaria, 498-503. [In Engl. // 3 tabl., 14 ref.].

32.  Tonev, T. & M. Gospodinov. 1995. Influence of nitrogen fertilization on productivity of rotation link “cereal predecessor - winter wheat”; I. Effect on yield of predecessors, In: Breeding and cultivation of wheat, sunflower and legume crops (1st Balkan Symposium), June, 26-29, 1995, Albena-I.W.S., Bulgaria, 494-497. [In Engl. // 3 tabl., 1 fig., 3 ref.].

25.  Tonev, T. 1995. Influence of previous and direct nitrogen fertilization on the grain yield of wheat grown after sugar beet, Nauchni trudove na Selskostopanska akademia (Sci. Works of Agricultural academy), 2 (1): 3-5. [In Bulg., abs. in Engl. // 4 tabl., 9 ref. // Original title: Vliyanie na predshestvashtoto i pryakoto azotno torene v’rhu dobiva na z’rno ot pshenitsa, otglejdana sled tsarevitsa].

24.  [App.] Tonev, T. 1994. Winter wheat and other crops in the rotation, Zemedelie (Agriculture), 102 (8): 7-8. [In Bulg. // 1 tabl. // Original title: Pshenitsata i drugite kulturi v seitboobrashtenieto].

21.  Nankova, M., T. Tonev & L. Shtereva. 1994. Changes in nutritive regime of slightly leached chernozem depending on long-term fertilization and rotation type, Anniversary Int. Conf. “50 Years MRI”, June 14-16, 1994., Bylts, Moldova - unpublished. [In Russ. // 3 tabl., 19 ref. // Original title: Izmeneniya pitatelnogo rejima slabo wyshchelochennogo chernozema v zavisimosti ot dlitelnogo udobreniya i cheredovaniya kultur].

17.  [App.] Shtereva, L. & T. Tonev. 1993. The crop rotation as a law of agriculture, Zemedelie (Agriculture), 91 (6): 3-4. [In Bulg. // Original title: Seitbooborot’t - zakon na zemedelieto].

11.  [App.] Shtereva, L. & T. Tonev. 1992. Which predecessor is the most suitable for winter wheat, Zemedelie (Agriculture), 90 (1-10), p. 7. [In Bulg. // 1 tabl. // Original title: Koy predshestvenik e nay-podhodyasht za pshenitsata].

10.  Shtereva, L. & T. Tonev. 1992. Suitability of the main predecessors for cultivation of some winter wheat varieties in Dobroudja region, Sbornik nauchn’h trudov (Collection of Scientific Works), Mironovka, Ukraine, 2: 131-137. [In Russ. // 2 tabl., 7 ref. // Original title: Prigodnost osnownych predshestvennikov dlya vyrashchivanie nekotorych sortov pshenitsy v Dobrudja].

8.  Tonev, T. & P. Penchev. 1992. Effect of some agrotechnical factors on the yield and quality of winter barley cultivar Hemus, Rasteniev’dni nauki (Plant Sciences), 29 (7-8): 54-60. [In Bulg., abs. in Russ., Engl. // 5 tabl., 1 fig., 6 ref. // Original title: Vliyanie na nyakoi agrotechnicheski faktori v’rhu dobiva i kachestvoto na zimniya echemik sort Hemus].

3.  Petkov, P., T. Tonev & L. Shtereva. 1991. Influence of crop rotation, fertilization and variety differences in winter wheat on infection of root and stem rots, National Conf. “Space - Nature - People ’91”, Oct., 29-30, 1991, Yambol. Deposit in The Cenral Technological Library - Sofia, No. ND-511/92. [In Bulg. // 3 tabl., 6 ref. // Original title: Vliyanie na seitbooborota, toreneto i sortovite osobenosti na pshenitsata v’rhu napadenieto ot korenovi i bazichni gnieneta].

2.  Tonev, T. & L. Shtereva. 1990. Study on influence of predecessors maize for grain and silage on productivity of the main winter wheat varieties, First National Conf. Of Young Researchers on Forage Production, June, 26-29, 1990, Pleven - unpublished. [In Bulg. // 2 tabl., 2 fig., 8 ref. // Original title: Prouchvane vliyanieto na predshestvenika tsarevitsa za z’rno i silaj v’rhu produktivnostta na osnovnite sortove pshenitsa].