كليدواژه :
آفتابگردان , خاك ورزي , روي , بر , منگنز , درصد روغن و محلول پاشي
چكيده لاتين :
In order to evaluate the effects of tillage, different systems and spray solution fertilizers of Znso4. Mnso4 and HBO3 on oil sunflower production, an experiment was conducted at the Research Farm of Agricultural Jahad Organization of East-Azerbaijan located at 16 Km Marand city during 2002-2003. The experimental design was a split plot in randomized complete blocks involved 3 kinds of tillage of conditional, minimum tillage, no tillage and 3 kinds of fertilizers of Znso4. Mnso4. H3BO3 and Witness were considered as the main and subplots, respectively, with 4 replications. The results of variance analysis showed that the effect of main tillage treatment on total traits was no significant except of the energy efficiency trait. Therefore, the highest energy efficiency was obtained in no tillage treatment with 8.54. To evaluate the effect of main fertilizer treatments it was observed that in the fertilizer treatment Mnso4 had the highest grain yield with amount 4.087 ton/ha, 1000 seed weight with 80.64 gram, biological yield with amount 10.275 ton/ha, weight of seeds of full per head with 81.08 gram, grain Mn content with amount 81.42 mg/kg, oil yield with 1.819 ton/ha and energy efficiency with amount 8.07 were allocated by oneself. On the basis of result, the compared means Zn fertilizer treatment had the highest head diameter with amount 215.1 mm, grain Zn content with amount 62.67 mg/kg and oil percentage with amount 46.17% was allocated by oneself. To investigate the effects of interaction among treatments, the highest grain yield in minimum tillage treatment and Mn with amount 4.246 ton/ha, the highest grain oil percentage in Zn x conditional tillage treatment with amount 47,5%, the highest oil yield in minimum tillage x Mn treatment with amount 1.926 ton/ha, the highest biological yield in conditional tillage x Mn with amount 10,656 ton/ha and the highest energy efficiency in no tillage x Mn with amount 9.15 were observed. Based of the obtained results, carrying out tillage operations had not significant effect on studied traits. Furthermore, application of M11SO4 fertilizer had the significant effect on the more studied traits. The highest grain and oil yield were obtained in minimum tillage x Mn treatment.
