Berecz K. — Kismányoki T. — Debreczeni B.-né. : (2005). Az ásványi és a szerves trágyázás néhány növénytermesztési és környezeti hatása. Növénytermelés 54,3. 169.–179.
Debreczeni B.-né. , 'Az ásványi és a szerves trágyázás néhány növénytermesztési és környezeti hatása ' (2005 ) 54 Növénytermelés : 169 -179.
Borbélyné Hunyadi É — Lesznyák M. — Kutasy E — Csajbók J. : (2005). The interactive examination of environmental and biological factors in the sunflower yields. Cereal Research Communications 33,1. 161–163.
Csajbók J. , 'The interactive examination of environmental and biological factors in the sunflower yields ' (2005 ) 33 Cereal Research Communications : 161 -163.
Dixon, F. L. — Lutman, P. J. W. (1992): Effects of drilling date on the growth and yield of sunflower (helianthus annuus) in the UK. Journal of Agricultural Science. 119.2. 197–204.
Lutman P. J. W. , 'Effects of drilling date on the growth and yield of sunflower (helianthus annuus) in the UK ' (1992 ) 119. Journal of Agricultural Science : 197 -204.
Encseva, V. (1984): Effect of the date of sowing hydrophobized seeds on sunflower yield. Rastenievdni Nauki 21.7. 33–41.
Encseva V. , 'Effect of the date of sowing hydrophobized seeds on sunflower yield ' (1984 ) 21. Rastenievdni Nauki : 33 -41.
Er, C. — Isik, O. (1988): Effect of sowing date on some agronomic characters in Sunflower cv. VNIMK 8931. Doga Turk Tarim ve Ormancilik Dergisi 12.1. 19–23.
Isik O. , 'Effect of sowing date on some agronomic characters in Sunflower cv. VNIMK 8931 ' (1988 ) 12. Doga Turk Tarim ve Ormancilik Dergisi : 19 -23.
Gumaniuc, N. — Stanciu, D. — Mihai, I. (1986): Improved technology for hybrid sunflower seed lots, influencing increased yield and seed quality. Productia Vegetala Cereale si Plante Technice 38.4. 13–20.
Mihai I. , 'Improved technology for hybrid sunflower seed lots, influencing increased yield and seed quality ' (1986 ) 38. Productia Vegetala Cereale si Plante Technice : 13 -20.
Harper, F. — Ferguson, R. C. : 1979. The effects of bitumen mulch and sowing date on the establishment and yield of oil-seed sunflower ( Helianthus annuus L.). Journal of Agricultural Sciences 93:1. 171–180.
Ferguson R. C. , 'The effects of bitumen mulch and sowing date on the establishment and yield of oil-seed sunflower (Helianthus annuus L.) ' (1979 ) 93 Journal of Agricultural Sciences : 171 -180.
Kotecki, A. — Malarz, W. (1988): Effect of sowing date and plant density on the yields of oilseed sunflower. Zeszyty Naukowe Akademii Rolniczej we Wroclawiu Rolnictwo 47. 117–125.
Malarz W. , 'Effect of sowing date and plant density on the yields of oilseed sunflower ' (1988 ) 47 Zeszyty Naukowe Akademii Rolniczej we Wroclawiu Rolnictwo : 117 -125.
Pepó P. (2000b): Napraforgó gazdaságosan. Magyar Mezőgazdaság 55.44. 10–11.
Pepó P. , 'Napraforgó gazdaságosan ' (2000 ) 55. Magyar Mezőgazdaság : 10 -11.
Prodan, M. — Prodan, I. — Pipie, F. (1985): Study on the effect of sowing date and rate on sunflower yields in the south west of the Romanian Plain. Productia Vegetala Cereale si Plante Technice 37.2. 3–8.
Pipie F. , 'Study on the effect of sowing date and rate on sunflower yields in the south west of the Romanian Plain ' (1985 ) 37. Productia Vegetala Cereale si Plante Technice : 3 -8.
Surovcik, J. (2001): Yield reaction of sunflower ( Helianthus annuus ) to sowing time and weed treatment. Vedecke Prace Vyskumneho Ustavu Rastlinnej Vyroby Piestany 30. 97–102.
Surovcik J. , 'Yield reaction of sunflower (Helianthus annuus) to sowing time and weed treatment ' (2001 ) 30 Vedecke Prace Vyskumneho Ustavu Rastlinnej Vyroby Piestany : 97 -102.