THE INFLUENCE OF FERTILIZATION WITH VARIABLE DOSES OF NITROGEN FERTILIZERS APPLIED ON A CONSTANT PHOSPHOROUS AND POTASSIUM FOND ON THE YIELD AND ON THE OIL CONTENT OF THE WINTER RAPE PUBLISHEDD. C. Micu, Ioan Borcean
The work contains the partial results regarding the oil content of rape obtained on a salsodic chernozem soil poorly salted between 50 and 100 cm and having a clay-argillaceous texture. The used variety was the Winner variety. The highest yield obtained was of over 3100 kg/ha and has been obtained for the variant fertilized with N 80 P 80 K 80., The used nitrogen fertilizer was the aluminum sulfate. The nitrogen fertilizers have decreased the oil content from 46.5% (N 0 ) to 41,6%(N 120 ) in the variant fertilized with ammonium nitrate and from 46.5% (N 0 ) to 43.9% in the variant fertilized with ammonium sulfate.
oil rape; fertilization