Marianus Evarist Ngui is an alumnus of the National Pingtung University of Science and Technology (PhD), Bogor Agricultural University (Masters), and Sokoine University of Agriculture (Bachelor). Since 2014, he has served under the Ministry of Agriculture of Tanzania as an Agricultural Advisor in the Mtwara and Mbeya Regional Secretariats. His research and professional activities focus on soil fertility management, plant nutrition, sustainable agriculture, climate-smart farming, food security, and environmental conservation. Additionally, his research works contribute to the achievement of the following UN Sustainable Development Goals. SDG 1, SDG 2, SDG 3, SDG 11, SDG 12, SDG 13, SDG 15, and SDG 17.