As one of the most environmentally friendly and cost-effective method, anaerobic digestion (AD) has been widely studied and developed as a conventional technology to degrade biodegradable materials and produce biogas simultaneously. Various substrate sources are used in this process such as organic fraction of municipal solid waste (MSW), waste activated sludge (WAS), animal manures, agro-indus...

Manure from animal farms and sewage sludge contain pathogens and opportunistic organisms in various concentrations depending on the health of the herds and human sources. Other than for the presence of pathogens, these waste substances are excellent nutrient sources and constitute a preferred organic fertilizer. However, because of the pathogens, the risks of infection of animals or humans incr...

Abstract Targeted use of animal manures as a nitrogen (N) fertilizer is challenging because their poorly predictable N value. An enhanced understanding transformation processes in soil under field conditions necessary to better synchronize availability and crop demand. 15 labeled cattle slurry, produced by feeding heifer with ryegrass hay, was used an on-farm trial on two neighboring fields, cr...

Abstract A pots experiment under greenhouses conditions were conducted at an agricultural research station related to Agriculture College / Basrah Univ. during the grown season 2017 - 2018 statement effect of different levels treatment liquid and dry Wey adding soil mixed animal manures as a growth media on some tomato seedling properties, level 25, 50 75 % 1, 2 4 dry. Results showed significan...

The potential contributions of exogenous organic matters (EOMs) to soil C and mineral N supply depend on their mineralization, which can be assessed in laboratory incubations. Such incubations are essential calibrate decomposition models, because not all EOMs tested the field. However, EOM resource-intensive. Therefore, easily measurable characteristics that useful predict behaviour needed. We ...