In this study, odorous volatile compounds (OVCs) from market−ready, commercial composts supplied by 14 different producers were compared using a recently developed method involving solid−phase microextraction (SPME) of headspace volatiles followed by GC analysis. The products analyzed were derived from a cross−section of the wide array of compost feedstock ingredients used in the U.S. (e.g., bi...

A microarray consisting of oligonucleotide probes targeting variable regions of the 16S rRNA gene was designed and tested for the investigation of microbial communities in compost. Probes were designed for microorganisms that have been previously reported in the composting process and for plant, animal and human pathogens. The oligonucleotide probes were between 17 and 25 bp in length and inclu...

While several EU member states have working compost markets, only about one third of the bio-waste, around 35 Mio tons is used to produce compost, and to some degree, biogas. The major part is still incinerated or landfilled together with other waste. This paper proposes the improvement of existing and the creation of new compost markets based on the integration of biochar and the implementatio...

This study was conducted to investigate microbial community changes during the field-scale composting of the anaerobic digested pig manure sludge. Samples were obtained from an influent tank (Inf.) and anaerobic digestion tank (A. d.) of pig manure slurry, and the early stage of compost depot (Com. 1 and Com. 2). Input of the compost process was produced by the solid-liquid separation process o...

To develop an active microbial activity quickly developing stabilizing thermophilic temperatures during the composting of wastewater sludge, the bulking agent (BA) plays a major role in establishing the recipe structure, exposed particle surface area and porosity. To optimize the biodegradation of a sludge compost recipe, the objective of this paper was to study the effect and interaction of in...

Field experiment was conducted in 2008 at the Research Field of Agricultural College of Shiraz University, Shiraz, Iran to investigate the effects of urban waste compost (UWC), manure and chemical fertilizer on the initial growth of corn (Zea mays). Experimental design was split plot factorial with three replications. Main plots were assigned to nitrogen (N) fertilizer (0 and 200 kg N ha-1), an...

in order to investigate the effects of municipal waste compost and benefit fungi of trichoderma species on seedling emergence parameters, growth and some micronutrients uptake of garden cress a pot experiment was carried out in factorial arrangement based on randomized complete block design with 3 replications. treatments consisted of three levels of municipal waste compost (15, 30, 45 mg ha-1 ...

Mining severely affects ecosystems and threatens local food security. Remediation practices, however, are a viable way of reducing the negative impacts on post-mining lands. In this study we aim to improve crop yields drought resistance post-tin-mining site located in Bangka Island, Indonesia, with locally available resources. Plots five different soil amendments: (1) dolomite; (2) compost; (3)...

The life table parameters of Macrosiphum rosae L. (Hemiptera: Aphididae) on five vermicompost-tea (tea-compost) concentrations (20, 40, 60, 80 and 100%) and control treatment (0%) on Rosa hybrida L. were determined under laboratory conditions. There were significant differences among pre-imaginal period and adult longevity of the aphid on the five teacompost concentrations. The highest mortalit...

Effect of different potting media on growth of rough lemon (Citrus jambhiri L.) rootstock was studied. Freshly harvested seeds of rough lemon were germinated in flat trays of sterilized sand under greenhouse conditions. Six week old seedlings, uniform in size were transplanted from trays to pots (15x15 cm). Leaf manure, peat, spent compost of oyster and button mushroom were added in different c...