Biogas fermentation residues’ effect on the formation tendency of the soil aggregates

László TOLNER1 – Zoltán KENDE2 – Imre Tibor TOLNER3 – Imre VÁGÓ4 – Imre CZINKOTA1

1Institute of Environmental Science, Faculty of Agricultural and Environmental Science, Szent István University H-2100 Gödöllő Páter K. U. 1.

2Institute of Crop Production, Faculty of Agricultural and Environmental Science, Szent István University H-2100 Gödöllő Páter K. U. 1.  

3Faculty of Agricultural and Food Science, University of West Hungary, H-9200 Vár 2, Mosonmagyaróvár

4Institute of Agricultural Chemistry and Soil Science, Faculty of Agricultural, Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary

Abstract: The organic materials which mixed into the soil have serious impacts on the formation tendency of the soil aggregates. In the past some of the by-product in the animal husbandry, which can be used for fertilizing, including manure and slurry had utilization problems, because of their low nutrition content and high land application costs.

The facts, like the improving impacts of the organic materials on the soil life and structure and the regulations which governs the storage of this products and considers these by-products as hazardous waste, highlighted the re-usage of this materials. The sewage and the non-hazardous organic material waste which generated during the solid waste management can be used for fertilizing after appropriate treatment. We examined under laboratory conditions the fermentation residues’ improving effect on the soil structure. With mechanical interference we redound the formation tendency of the soil aggregates which evaluated by optical inquiry.  The soil surface illumination from different angels causes different shadow effects, which can be measured from above. By the shadow effects the roughness of the soil surface can be esteem. In this way with remote sensing the effect of the soil tillage can be evaluate. By machine equipped instrument on the fields or in laboratory conditions with this method the soil structure can be describe.

Keywords: biogas fermentation, soil aggregates