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Research was done in an experimental field of NARDI Fundulea, not irrigated variant, the main purpose being the influence of density and fertilization on the production quality of three sunflower hybrids (a1 - Performer; a2 - KWS Barolo RO; a3 - PR64A89). Concerning the plant density, they were used two variants, respectively c1 of 50,000 plants/ha, and c2 of 60,000 plants/ha. Other significant factors were the climate and soil conditions. In the area, the experimental conditions are characterized by the transition from steppe to forest steppe that allows especially the formation of cambic chernozem category soil. The quality data processing was performed following the analysis in the laboratory of sunflower seeds, yielded as samples of 750 g. After removing the impurities they have been determined 1000GrainWeight, hl mass, and the seeds oil content in the conditions of 2012 year climate.

bulletin of university of agricultural sciences and veterinary medicine cluj-napoca. agriculture

Research on the Influence of Density and Fertilization Concerning the Sunflower (Helianthus annuus) Hibrids Quality on the Cambic Chernozem from Fundulea