Keywords = nitrogen efficiency
| Number of Articles: 1 | ||
| 1 | Efficiency of Different Nitrogen Fertilizer Sources on Soil Productivity, Fertility and Economically of Wheat Followed by Maize Crops Grown under Calcareous Soil Conditions. | |
| Volume 8, Issue 12, December 2017, Page 813-820 | ||
| Azza Ahmed; Mona Abdel-Razek; M. Awaad; M. bayoumi | ||
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