Volume 23, Issue 4 (winter 2020)                   jwss 2020, 23(4): 43-54 | Back to browse issues page

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Jafari F, Khademi H, Shariatmadari H, Ayoubi S. Temporal Variations of Important Features of Phlogopite Enriched Manure During Composting and Vermicomposting. jwss 2020; 23 (4) :43-54
URL: http://jstnar.iut.ac.ir/article-1-3665-en.html
1. Department of Soil Science, College of Agriculture, Isfahan University of Technology, Isfahan, Iran. , hkhademi@cc.iut.ac.ir
Abstract:   (4493 Views)
The production of compost and vermicompost from manure and different organic residues and also, their enrichment with some fertilizers and other treatments have been extensively investigated. However, no study has yet been conducted on the enrichment of composted and vermicomposted manure with clay minerals. This research was, therefore, carried out to investigate the selected properties of phlogopite enriched manure during the composting process with and without earthworm activity. The experiment was conducted in plastic containers with the lid under an average temperature of 27.5°C and the humidity of 42.5% using a factorial arrangement in a completely randomized design with 3 replications. Factors included levels of phlogopite addition (0%, 20% and 40% by weight), with or without the earthworm Eisenia fetida for different time periods of 1.5, 3, 4.5 and 6 months. At the end of the experiment, the total of organic carbon, nitrogen, potassium, magnesium, and iron, as well as the contraction the available magnesium, potassium and iron, was determined. The results showed that the percent of organic carbon was decreased while the total nitrogen, the total and available potassium, iron and magnesium were increased with time. The results also indicated that a significant percentage of the total content of the elements in all treatments without phlogopite was available. However, in treatments containing phlogopite, the amount of the available elements was increased slowly with time. This was Due to the weathering of phlogopite mineral and the decomposition of manure. In general, it seems that the enrichment of composted and vermicomposed manure with phlogopite can guarantee the supply of nutrients such as potassium, iron and magnesium in a longer period, as compared with the ordinary composts.
Full-Text [PDF 191 kb]   (1105 Downloads)    
Type of Study: Research | Subject: Ggeneral
Received: 2018/02/8 | Accepted: 2018/08/11 | Published: 2020/02/29

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