Rokeya Sultana, Mohammad Golam Kibria, Roksana Akter, Mosa. Lajina Begum and Md Anwarul Abedin
DOI: https://doi.org/10.55706/jae1901
Abstract
Food security depends on rice (Oryza sativa L.), the foundation of billions of Asian and African people. The loss of soil organic matter reduces rice growth and productivity by lowering soil structure and water-holding capacity. Thus, a field experiment examined how tillage regimes and organic additions affect rice growth and productivity. Two-factor Split Plot Designs were used in the investigation. Tillage systems (CT1= Conservation tillage and CT2=Conventional tillage) in the main plot and organic amendments (CD=Cow dung 5t/ha, PM=Poultry manure 3t/ha, and Cow dung Slurry 1.5 t/ha) in the sub plot were the determining factors. Grain and straw yields were higher in CT1 than CT2. In organic amendments, PM (3 t/ha) consistently maximized growth and production. With the CT1+ PM treatment, total tillers (15.89), effective tillers (15.08), and plant height (100.46 cm) were highest, while CT2 × CD combination had the lowest values (12.56, 12.22, and 92.37 cm, respectively). In grain, CT1+ PM treatment had P (0.35%) and K (0.39%) and S (0.40%). For grain and straw nutrient content, organic additions were also beneficial. The lowest nutritional levels were found in CD. The combination of CT1 and PM outperformed CT2 and PM. Compared to CT2 and other organic amendments, CT1+PM (3 t/ha) improved BRRI dhan89 (boro rice) growth features, grain and straw yield, and nutrient status. These findings suggested that using CT1+PM (3 t/ha) in the soil might be effective for high yield and nutritional conditions for rice.
Keywords: Conservation tillage; Conventional tillage; Organic amendments (OMs); Nutrition; Yield.
