https://soilenvironment.com/index.php/OSSE/issue/feed 2026-05-17T12:02:45+07:00 Ali Rahmat, Ph.D. osse.ressi@gmail.com Open Journal Systems <p><strong>Open Soil Science and Environment (OSSE)</strong> is an International Journal is an open access peer reviewed journal that covers the publication of all aspects of Environmental Sciences with firm determinations of description on the modern study achievements and developments. It delivers valued online platform by publishing Research article, Review article, Short communication, Rapid communication, Letter to Editor, Case-reports and analyses in all areas of Ecological Science. We aim to substitute interdisciplinary communication and promote understanding of substantial environmental issues. And our mission is to be the most consistent and expansive promoter for environmental science education and careers by promoting research in all areas of Environmental Sciences including waste management, pollution control, and remediation of hazards.</p> https://soilenvironment.com/index.php/OSSE/article/view/60 2026-05-17T12:02:45+07:00 Angus Onwudiwe Ikeh iykeh2007@yahoo.com Demben Moses Esang iykeh2007@yahoo.com Adaobi Daian Unaegbu iykeh2007@yahoo.com Ali Rahmat alirahmat911@gmail.com Debasis Mitra debasismitra3@gmail.com

<p><strong>Background:</strong> Ultisols are highly weathered, acidic, and low-fertility soils commonly found in tropical and subtropical regions. They typically exhibit low pH, low nutrient content (particularly phosphorus, potassium, calcium, and magnesium), and high aluminum toxicity.<br /><strong>Aims</strong>: This study aimed to evaluate sustainable soil management practices using organic amendments to improve the fertility and reduce the acidity of Ultisols in southeastern Nigeria.<br /><strong>Methods:</strong> The field study was conducted in March, 2025 to explore sustainable soil management practices that could improve soil fertility status and enhance yield stability of groundnut. The research was carried out at the Teaching and Research Farm of the University of Agriculture and Environmental Sciences, Umuagwo, Imo State, Nigeria. The treatments included poultry manure (PM), cassava peel waste (CP), cow dung (CD), compost manure (CM), and a control (no soil amendment, C). The experiment was laid out in a randomized complete block design with three replications. Data were collected and analyzed using ANOVA and followed by an LSD test.<br /><strong>Results &amp; Conclusion:</strong> The results of soil analysis at harvest showed that poultry manure application increased organic matter by 56%, while cow dung increased it by 36%. PM also increased total N by 62%, while cow dung increased it by 26%. Cow dung treatment produced significant seed yields of 2672.51 kg/ha, followed by cassava peel waste, which produced 2487.45 kg/ha. The control treatment had the lowest seed yield of 1574.83 kg/ha. This study demonstrated that the application of organic soil amendments, particularly cow dung, cassava peels, and poultry manure, significantly improved the fertility of Ultisols in southeastern Nigeria. Among the tested materials, cow dung proved most effective for groundnut cultivation, as it provided the optimum soil conditions required for maximizing yield in Ultisols.</p>

2026-04-02T00:00:00+07:00 Copyright (c) 2026 Angus Onwudiwe Ikeh, Demben Moses Esang, Adaobi Daian Unaegbu, Ali Rahmat