Compost production and composted manure quality evaluation
| Autor: | Zdenko Lončarić, Želimir Vukobratović, Brigita Popović, Marija Vukobratović, Krunoslav Karalić |
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| Přispěvatelé: | Martinez, Xavier F. |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
chemistry.chemical_classification
Materials science Compost fungi manure composting chemical characteristic quality evaluation Biodegradable waste Horticulture engineering.material Manure complex mixtures Animal science chemistry Agronomy physical and chemical characteristic engineering Organic farming Organic matter Chicken manure Dry matter |
| Popis: | Composted manure can have an important role in production of substrate for growing seedlings, which would make the organic waste management more cost-effective, but also decrease the cost of seedlings production. Production of composted manure is of significant importance for family farms as well and even more so for farms practicing integral and organic agriculture. This research aims to establish the changes in physical and chemical characteristics of manure from cattle, horse, pig and poultry production during the composting process. The composting process lasted for 9 months. Analysis of physical and chemical characteristics was conducted according to TMECC 03.09-A methods. Temperatures necessary for disinfection of the compost material were developed during the process. During the composting process the humidity decreased and the proportion of the dry matter increased (29.2 % on average). The content of ash also significantly increased (37% on average) while the portion of the organic matter decreased. Compared to the initial material, the concentration of P, K, Ca and Mg after 9 months of composting was significantly increased in all composts, namely P and K 42 % on average and Ca and Mg 71 and 72% respectively. At the end of composting, all the composts have C/N ratio below 20:1, which indicates their stability. However, some researchers think that the ratio between the final and initial C/N ( |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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