Effect of different levels of nitrogen fertilizer on the yield and oil composition of flax (Linum usitatissimum. L)

Abstract

The experiment was conducted out during 2020 -2021 at the Faculty of Agriculture - - Faculty of Agriculture / Omar Al-Mukhtar University - Al-Bayda - Libya. The purpose of the experiment was to study the effect of nitrogen fertilizerlevels (0, 60 and 90 kg N .ha-1) on yield and yield components,oil quality of flax. Randomizedcomplete block design (R.C.B.D) with three replicationwas used. The resultshowed a clear evidence increase in the following characteristicsnumber of fruiting branches   , capsules / plant, seedsL capsules ,Weight of 1000 seeds, Seed and oil yield by using nitrogen fertilizer at the levels 90 kg N .ha^-1,The addition of (90 kg N.h^-1) of Nitrogen fertilization led to significant increasing in Total phenolic