| Titre : | Context-specific agronomic solutions for achieving agronomic gains with reduced environmental footprints in irrigated drylands of Egypt (2026) |
| Auteurs : | M. Devkota ; K.P. Devkota ; M.E.D. Omar ; S. Attaher ; A. Govind ; V. Nangia |
| Type de document : | Article |
| Dans : | Agricultural systems (vol. 232, February 2026) |
| Article en page(s) : | p. 104566 |
| Langues : | Anglais |
| Langues du résumé : | Anglais |
| Catégories : |
Catégories principales 06 - AGRICULTURE. FORÊTS. PÊCHES ; 6.4 - Production Agricole. Système de ProductionThésaurus IAMM SYSTEME DE PRODUCTION ; RENDEMENT DES CULTURES ; EMPREINTE ECOLOGIQUE ; IMPACT SUR L'ENVIRONNEMENT ; CULTURE IRRIGUEE ; ZONE ARIDE ; EGYPTE |
| Résumé : | CONTEXT Wheat (Triticum aestivum) is Egypt's staple crop, crucial for national food security. However, the country remains heavily reliant on imports to meet domestic demand. Enhancing production sustainably requires a systematic assessment of attainable yield and profit gaps along with the identification of key factors driving. OBJECTIVES This study aims to identify major determinants of wheat yield and profit gaps across different governorates in New and Old Lands; to develop context-specific integrated agronomic solutions for sustainably closing these gaps while reducing environmental footprints. MATERIALS AND METHODS We used random field survey samples of 2042 individual wheat fields across 23 wheat-growing governorates covering New and Old Lands during 2021/2022 growing season. Based on crop yield, farmers were categorized into three groups, and attainable yield and profit gaps were calculated from difference between mean yield of top 10th decile and average farmers' yield. Random Forest model is used to analyze data and identify major factors affecting yield, profit, and nitrogen use efficiency (NUE). Sustainability of wheat production was assessed using various indicators. Comparative analyses were conducted to evaluate differences in yield, input use efficiency, and profitability between Old and New Land, as well as across different yield gap categories. RESULTS AND DISCUSSION Analysis revealed significant yield and profit gaps between average and high-yielding farmers in both Old and New Lands. In Old Land, high-yield farmers (10th decile) achieved average yields of 8.4 t ha?1 and net profits of US$1097 ha?1, compared with 6.5 t ha?1 and US$675 ha?1 for medium-yield farmers. In the New Lands, the yield gap was more pronounced, with high-yield farmers achieving average yields of 7.5 t ha?1 compared to 4.63 t ha?1 for medium-yield farmers, highlighting a significant opportunity to increase productivity. Determinants for yield and profit varied across governorates, indicating need for governorate-specific strategies to sustainably close yield and profit gaps. Water productivity, NUE, and labor productivity were notably lower, while production cost showed no strong correlation with yield and was negatively correlated with greenhouse gas emission intensity (GHGI). Raised bed planting improved NUE by 29 %, increased water productivity by 18 %, and reduced GHGI by 15 % compared with conventional flat planting. SIGNIFICANCE Adopting context-specific agronomic practices that combine integrated-fertilization, efficient irrigation, suitable varieties, and raised-bed planting can enhance agronomic gains while reducing environmental footprints. When tailored to local yield-limiting factors, these solutions provide a sustainable pathway to narrow yield and profit gaps. Scaling data-driven solutions, supported by enabling policies and effective extension systems, offers viable option to strengthen wheat self-sufficiency in Egypt and similar irrigated drylands. |
| Cote : | En ligne |
| URL / DOI : | https://doi.org/10.1016/j.agsy.2025.104566 |
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