Abstract

During 1981, 1982 and 1983 trials have bean carried out on different varietas of safflower. The trials con· cerned the sowing rates, row spacing and N fertilization. The varietas Safflola 202, Safflola 541 and Safflola 918 have given the highest yield achieving 20 q ha^-1 . Achenes yield hasn't been statistically different using 20-30 and 40 Kg ha ^-1 of seed. Yield rates nearly equal have been obtained with plants in narrow rows (25 cm) and in wide rows (50 cm). N fertilization has positively affected the achenes-yield. 40 Kg ha ^-1 of N have determined an increased production wich has been statistically significant in comparison with the non fertilized test. It hasn't been achieved any further increment in the yield using higher N rates (80 and 120 Kg ha^-1).

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