Effect of organic materials on the composition characteristics of micro-aggregates in albic soils and their nutrient contents Effects of application of different organic materials on soil microbiological properties and soil fertility in Weibei rainfed highland Effect of organic materials in controlling cucumber seedling diseases Effects of plant-derived organic materials and humification driving forces on soil microbial community diversity in orchards Influence of different organic materials on the microbial biomass in contaminated soil of northeastern England Effect of organic materials on respiration intensity of annual Malus. hupehensis Rehd. root system Characteristics of Organic Materials Decomposition in Infertile Red Soils Short term effect of applying organic materials in improving soil fertility of Weibei rainfed highland.