EFFECT OF CHEMICAL AND BIOFERTILIZERS ON THE GROWTH AND ACTIVE INGREDIENTS OF MAJORANA HORTENSIS PLANT

Abstract

The experiment was carried out in the experimental farm of El-Kanater Research Station, Horticulture Research Institute, Kalubia Governorate, Egypt. Cultivation of seedling carried out in two seasons 2011-2012/2012-2013 to study the effect of N.P.K. fertilizers and boifertilizer on Majorana Plant. This work was designed in order to investigate the possibility of reducing the need for NPK chemical fertilization as well as improving plant productivity by using bacterial biofertilization as an alternative. The plants of control treatment received only the full recommended rate of NPK chemical fertilization as ammonium sulphate, calcium superphosphate and potassium sulphate. For the other treatments, a single inoculum or mixture of different inoculum combinations of Azotobacter chroococcum and Azospirillum lipoferum were used in combination with NPK chemical fertilizer as quarter or half dose of the full recommended rate. The experiment was complete random parts to study the effect of nitrogen fixing bacteria application (Azospirillum lipoferum and Azotobacter chroococcum). The following measurements were recorded at each cut: - heights at different cuts (cm). - Number of branches /plant at different cuts.