Integrating geostatistics and landsat-8 OLI imagery for regional-scale spatial mapping and remote assessment of soil and foliar nitrogen status in citrus agroecosystem - Humair Ahmed; Muhammad Asad Hameed; Nabeeha Javed; Munazza Yousra; Maria Niaz; Bushra Baloch; Muydinjon Muminov; Sarah Abdul Razak; Shaimaa A. M. Abdelmohsen; Muhammad Tahir Naseem (Environmental Geochemistry and Health, 2026)