PL EN
Nitrogen mineralization efficiency across wheat growth stages under no-tillage and conventional tillage systems (Marchouch, Morocco)
 
More details
Hide details
1
Laboratory of Geosciences, Department of Geology, Faculty of Sciences, Ibn Tofail University, Kenitra, Morocco
 
2
International Center for Agricultural Research in the Dry Areas (ICARDA), Rabat P.O. Box 1014, Morocco
 
3
Research Unit on Environment and Conservation of Natural Resources, Regional Center of Rabat, National Institute of Agricultural Research, Rabat P.O. Box 6356, Morocco
 
4
Georesources Environmentalist Consultant/ Expert, Associate Professor at Casablanca School of Architecture and Landscape – Honoris United Universities, Rabat, Morocco
 
5
Laboratory of Materials, Nanotechnology and Environment, Department of Chemistry, Faculty of Sciences, Mohammed V University, Rabat B.P. 703, Morocco
 
 
Corresponding author
Kenza Kadiri-Hassani   

Laboratory of Geosciences, Department of Geology, Faculty of Sciences, Ibn Tofail University, Kenitra, Morocco
 
 
Ecol. Eng. Environ. Technol. 2025; 8
 
KEYWORDS
TOPICS
ABSTRACT
The present study aims to determine the optimal nitrogen dose that preserves soil mineralization properties. The evaluation managed for ammonium (NH4+), nitrate (NO3-) and mineral nitrogen (N min) concentrations under no-tillage (NT) and conventional tillage (CT) systems. The experiment was monitored in the greenhouse of the National Institute of Agricultural Research (INRA) in Rabat, Morocco, using a vertisol soil type from Marchouch INRA station. The Analysis of Variance (ANOVA) revealed a highly significant effect of sampling stage (stages 1,2,3 and 4; p < 0.001), and significant effects of nitrogen dose (0,50,100, and 150 kg/ha; p <0.05) and tillage system (CT vs NT; p < 0.05). Several significant interactions between these factors were considered. NH4+ concentrations were influenced by, Stage × Tillage system × Depth, Stage × Tillage system, and Stage × Dose interactions (p < 0.05). For NO3-, a significant Stage × Dose interaction was detected (p < 0.05), while for N min, a significant Tillage system × Dose interaction was found (p < 0.05). The recommended optimal dose is 50 kg/ha, which demonstrated a nitrogen mineralization efficiency of 63% at the 0-10 cm depth and 40 % at the 10 – 20 cm depth under NT. Nitrogen doses exceeding 100 kg/ha resulted in substantial N min losses under both tillage systems. These results provide new patterns into the nitrogen dose-tillage systems interaction in vertisol soils, offering the first experimental quantification of N mineralization efficiency across wheat growth stages in Marchouch, Morocco.
Journals System - logo
Scroll to top