Effect of organic and nitrogen fertilizers on growth and seed yield of black cumin plant, under Al Ghab area conditions
Abstract
The research was caried out at Al Ghab Scientific Agriculture Research Center, during seasons 2019/2020 to study the effect of four rates of organic fertilizer 0 , 10 , 20 and 30 ton/ h, and five nitrogen fertilizer rates 0, 40, 80, 120 and 160 kg/h and the interaction between these rates on growth and seed yield of black cumin plant. The treatments were arranged in a split plot in a randomized complete block design (RCBD) with three replications. The organic fertilizer rates were assigned to the main plots and nitrogen rates were factorialy assigned to the sub plots.
The results indicate the following.
- The organic rate 30 ton/h significantly increased root length 16.61 cm, plant height 54.42 cm, total number of branches (29.16) and seed yield/plant 8.34 g compared to the control and the rate 10 ton/ha, while the rate 20 ton/ha gave higher capsule number 39.33, but there was no significant increase between the rate 20 and 30 ton/h, at all studied indicators.
All nitrogen fertilizer rates caused an increase in all the indicators mentioned above, the rate 120 kg/h gave higher value in root length 16.42 cm, plant height 56.60 cm, branches number 28.15, capsule number 40.45, and seed yield/plant 8.91 g. On other hand, the rate 160 kg/h a decreased all indicators values.
The interaction between organic rate 20 ton/h and the nitrogen rate 120 kg/h gave beter values for root length 18.49 cm, total brunches number 32.22, capsule number 47.67 and seed yield per plant 9.56 g. There was a higher plant height 60.20 cm at the interaction between (organic rate 30 ton/h × 160 kg N/h).
Downloads
Published
How to Cite
Issue
Section
License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to the Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series
Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series . The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series Publisher
journal uses a CC BY-NC-SA license which mean
You are free to:
- Share — copy and redistribute the material in any medium or format
- Adapt — remix, transform, and build upon the material
- The licensor cannot revoke these freedoms as long as you follow the license terms.
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial — You may not use the material for commercial purposes.
- ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.