Keywords = alkali extracts
| Number of Articles: 1 | ||
| 1 | NPK-Liquid Fertilizer Based on Humic-Like Substances Extracted from Spent Coffee Grounds: Extraction, Preparation and Application to Maize | |
| Volume 39, April-June, April 2018, Page 260-267 | ||
| Mahmoud Kamh; Ramzy M. R. Hedia | ||
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