Related Experiment Video
Updated: Aug 18, 2026

Assessment of Labile Organic Carbon in Soil Using Sequential Fumigation Incubation Procedures
Published on: October 29, 2016
Organic matter components and aggregate stability after the application of different amendments to a horticultural
R Albiach1, R Canet, F Pomares
1Departamento de Recursos Naturales, Instituto Valenciano de Investigaciones Agrarias (IVIA), Apartado oficial, Moncada, Valencia 46113, Spain. ralbiach@ivia.es
Abstract:
The effects of usual or recommended rates of application of five organic amendments (24 t/ha yr of MSW compost, sewage sludge, and ovine manure, 2.4 t/ha yr of commercial vermicompost, and 100 l/ha yr of a commercial humic acids solution) on the soil contents of organic matter, total humified substances, humic acids, carbohydrates and microbial gums, and the structural stability of aggregates were investigated. Four and five years after the beginning of the experiment, significant increments in most of the parameters studied were found after the application of organic residues, whereas the two commercial amendments did not produce any significant change, suggesting that rates recommended by the producers and imposed by their high prices are too low to be useful. MSW compost yielded the highest increases, even if the amount of organic matter applied as ovine manure was very similar. Organic matter and carbohydrates appeared to be the parameters most closely related to soil aggregate stability.
More Related Videos
07:32Monitoring Pedogenic Inorganic Carbon Accumulation Due to Weathering of Amended Silicate Minerals in Agricultural Soils.
Published on: June 4, 2021
07:22Design and Construction of an Experimental Setup to Enhance Mineral Weathering through the Activity of Soil Organisms
Published on: November 10, 2023
Related Concept Videos
Aggregates Classification
Petrographic classification groups aggregates based on common mineralogical characteristics. Some of the common mineral groups found in aggregates are...
Porosity and Absorption of Aggregate
When all pores in an aggregate are filled with water, the aggregate is considered saturated and surface-dry. If left in dry air, water will evaporate until the aggregate...
Moisture Content and Bulking of Aggregate
When aggregates are exposed to rain or sit in stockpiles, they absorb moisture, which must be...
Unsoundness of Aggregate due to Volume Change
Deleterious Substances in Aggregate
Another type of impurity is clay and fine material that...
Soil Microbial Ecology