Volume & Issue: Volume 52, Issue 7, July 2023, Page 1-21 (Part7: Environmental Agriculture Sciences: ) 
| 1 | Effect of some safety Natural and Bio Fertilizers on the growth and production of calendula plant | |
| Page 1-21 | ||
| Sayed M. A. Ismael; Mostafa H. Al-Sharif; Najah A. Al-Sayed; Hassan Khater | ||
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