中国稻米2025，Vol.31Issue(3)：46-52,7.
不同有机物料与淤泥混配制作水稻育秧营养土的理化性状及对秧苗素质的影响
Physicochemical Properties of Rice Seedling Nutritive Soil Prepared by Different Organic Materials with Dredged Silt and its Influence on Rice Seedling Quality
摘要
Abstract
To effectively realize the resource utilization of dredged silt in river channels,this study used dredged silt as the main raw material,supplemented with different proportions of organic materials(distiller's grains,cassava residue,and mushroom residue),and developed different rice seedling nutrition soil formulas.By comparing the differences in physicochemical properties of these nutrient soils and their effects on rice seedling quality,and using principal component analysis to comprehensively evaluate the growth indicators of rice seedling,the optimal nutrient soil formulas were screened out.The results showed that,compared with pure silt,adding organic materials to silt significantly reduced the pH value and bulk density of nutrient soil,while significantly increased electrical conductivity(EC),total porosity,organic matter and available phosphorus content.In the consective two seasons of seedling cultivation experiment,the treatments of adding organic materials to silk generally showed better seedling growth than the pure silk treatment,but there were differences in the effectiveness between the treatments.In the first season experiment,the treatment with 40%distiller's grains added to the silt showed the best seedling rate and plant height performance,which were 85.79%and 18.33 cm,respectively.The treatment with 20%cassava residue added to the silt showed the best performance in terms of SPAD value,total root length,and aboveground dry matter weight of 100 plants,reaching 29.52 cm,81.63 cm,and 2.10 g,respectively.In the second season experiment,the treatment with 40%distiller's grains added to the silt had the highest leaf age,plant height,and stem-based width,which were 4.49,23.10 cm,and 2.39 mm,respectively.The treatment with 20%cassava residue added to the silt had the highest underground dry matter weight of 100 plants,reaching 1.28 g.The results of principal component analysis showed that the treatment of adding 40%distiller's grains or 20%cassava residue to silk resulted in better comprehensive quality of machine transplanted seedlings,which could be considered as the suitable formula for rice seedling nutrient soil.关键词
水稻/有机物料/疏浚淤泥/营养土/秧苗素质/主成分分析Key words
rice/organic materials/dredged silt/nutritive soil/seedling quality/principal component analysis分类
农业科技引用本文复制引用
张苗,麻艳威,谢昶琰,董青君,陈川,章安康..不同有机物料与淤泥混配制作水稻育秧营养土的理化性状及对秧苗素质的影响[J].中国稻米,2025,31(3):46-52,7.基金项目
江苏省水利科技项目(2023056) （2023056）
淮安市农业科学研究院科研发展基金(HNY202127) （HNY202127）
淮安市农业科学研究院科研发展基金项目(HNY202125) （HNY202125）
江苏省现代农业(水稻)产业技术体系项目(JATS[2023]190-1) （水稻）
乡村河道淤泥的栽培基质应用研究(HABL202230) （HABL202230）
