Collection of ear corn residue and its utilization as a bulking agent for cow manure composting
| Autor: | Dai Hanajima |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
engineering.material
complex mixtures Zea mays 03 medical and health sciences Residue (chemistry) Volatile fatty acids Animal science Animals Water content 030304 developmental biology 0303 health sciences Compost Chemistry Composting fungi 0402 animal and dairy science food and beverages 04 agricultural and veterinary sciences General Medicine 040201 dairy & animal science Manure engineering Cattle General Agricultural and Biological Sciences Cow dung |
| Zdroj: | SC10202005070020 NARO成果DBd |
| ISSN: | 1740-0929 |
| DOI: | 10.1111/asj.13323 |
| Popis: | This study examined the collection, storage, and utilization of ear corn residue as a bulking agent for composting. Ear corn residue left in fields was collected by a sequence of windrowing and round baling operations, which showed a collection efficiency of 53%-56%. More than 70% of the corn stalks had lengths shorter than 15 cm. The moisture content of corn residue collected in late October was approximately 58%; it decreased to 23% during storage. Dried corn residue was mixed with raw manure in two different ways, namely using complete mixing (CM) treatment or creating a bottom layer of residue, and a total of 3.4 t of the manure and ear corn residue mixture were composted using a pilot-scale composting apparatus. The results showed that the CM treatment resulted in higher temperature generation and produced less odorous and well-degraded compost after 2 months of composting, while the odorous compounds in the compost with corn residue as the bottom layer remained similar to those of the initial compost. To sufficiently utilize the advantages of the ear corn residue, thorough mixing of the corn residue with raw manure is preferable; this procedure produced well-degraded and safety compost in a shorter time period. |
| Databáze: | OpenAIRE |
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