Kỹ thuật ủ phân hữu cơ bằng phương pháp ủ nóng không đảo từ phân bò và thân cây bắp

Abstract

This study evaluates the effectiveness of static hot composting without turning, using fresh maize stalks and dried cattle manure in Dong Thap province. The experiment involved six compost piles prepared with a 5:1 ratio of maize stalks to manure, combined with PVC aeration pipes and Trichoderma spp. bio-inoculants. The process was monitored until the composting materials were fully decomposed. Results showed that the compost matured within 72 days, with the following findings: (1) Pile temperatures peaked above 70°C during the first week and remained above 50°C until day 54, ensuring effective organic decomposition; (2) Moisture content was maintained within the optimal range of 50–60%, with timely adjustments in dry spots; (3) The final compost exhibited a dark brown color, an earthy smell, and a loose texture - meeting the quality standards of well-matured compost. The study confirms the feasibility and effectiveness of static composting without turning and recommends its broad adoption by smallholder farmers in Dong Thap and the Mekong Delta.