Effect of mycorrhizae, azotobacter and organic manure on the growth, seed yield and oil content of Nigella sativa L. plants grown under two levels of chemical fertilizers, NPK
2011
Harb, E.M.Z. | Ghallab, A.M. | Soliman, S.H.D.
Mature black cumin (Nigella sativa L) seeds were planted in clay loam soil on the 23rd of November, 2005 and 2006 and were harvested on 10th April, 2006 and 2007 seasons. The data of vegetative growth, seed yield and oil seed percentage was determined. The data indicated that the biofertilization (Glomus macrocarpus fungus or Nitrobein bacteria) or organic manure alone or in combination with half or full NPK fertilizer increased plant height (cm), No. of branches and leaves, root length (cm) as well as herb and root dry weight when compared with uninoculated plants (control). Also, the best significant results of herb and root dry weight were found with mycorrhizal fungus and Azotobacter with full NPK fertilizers treatment as compared to the other treatments under study, while, the least values in these respects were found with the control plants. Also, G. macrocarpus fungus + Nitrobein + organic manure with full NPK fertilizer treatment were more effective in increasing the seed yield per plant and feddan than the other treatments under study. The same effect was found with G. macrocarpus fungus alone or combined with Nitrobein treatment when seed total and essential oil content were concerned. Generally, the biofertilization (mycorrhizae or Azotobacter) or organic manure increased the vegetative growth parameters, seed yield, and oil content than the control plants of black cumin.
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