There has been an increase in fertilizer use among farmers in the semi-arid Tigray region of Ethiopia during 2006-2015. Our household panel data covering nine years show that the average fertilizer adoption rate had increased from about 31% of plots in 2006 to almost 67% in 2015. Likewise,...

The Fertilising Products Regulation (EU) 2019/1009 lays down rules on the making available on the market of EU fertilising products. The European Commission may, under certain conditions, adopt delegated acts for new to add products derived from animal by-products within the meaning of...

Clean and efficient alternatives for sustainable treatment of pig farming wastes are a priority in suburban areas located at High Mountain ecosystems. Among these technologies are anaerobic and aerobic digestion with added microorganisms (bioaugmentation) or nutrients (biostimulation) as...

Studies on improving utilization, transportation, and storage of animal manure nutrients are critical to mitigating potential adverse environmental impacts of excess manure nutrients produced in regions with high concentrations of animal production. This study investigated the potential of...

Chicken manure (CM) is of a very complex and heterogeneous nature; thus, it is essential to analyze its properties to give it proper management. Direct use in agriculture as organic fertilizer is considered a popular treatment option for CM, which causes undesirable emissions of chemicals to the...

In this study, the effects of sawdust + hulls (CK) and rice straw stalks + mushroom waste (T1) as auxiliary materials on nitrogen as well as microbial structure in the composting process when composted with chicken manure were investigated. At the end of composting, the nitrogen loss of T1 was...

Faced with the worsening of climate issues, nations are directing efforts to build renewable energy matrices. Specifically with regard to biomass, it can contribute to the creation and strengthening of green competitive advantages in terms of cost for agricultural units. Strictly, swine biomass,...

Pyrolysis is a useful alternative to the current waste management practices. Manure biochars can be used as C-rich soil amendments, reducing the risk of greenhouse gas (GHG) emissions derived from unpyrolyzed manure decomposition. In this study, two manure biochars and their feedstock were used...

This study aimed to investigate long-term inhibition of chlortetracycline (CTC) antibiotics to anaerobic digestion (AD) of swine manure (SM). Two continuous-stirred tank reactors treating SM w/wo CTC spiking (3 mg/L) were operated for 900 days. The exposure level was determined according to...

Zinc is an important nutrient for plant growth and development. Its availability is influenced by zinc solubilizing microbes (ZSM). Effects of commonly promoted agronomic practices on the abundance of ZSM are so far not well understood. In this study, we assessed the effects of farmyard manure...

Continuous inputs of organic matter are vital for sustaining soil organic carbon (SOC) and productivity of soils in smallholder crop-livestock systems. However, the dynamics of the different inputs i.e. maize shoots, roots and manure used are poorly understood. Along with organic inputs, use of...

Plastic film mulching and gravel mulching in combination with fertilization are widely used to increase crop yields and water use efficiency (WUE) in arid and semi-arid areas, but soil surface mulching may stimulate soil organic carbon (SOC) mineralization, therefore, film mulching with manure...

This study aimed to evaluate whether soil water is facilitated and secured for tung growth or is competed by cover crops in tung-based intercropping and crop succession system in sandy-loam soil in southern Brazil. Additional effect of poultry manure was also evaluated during the winter and...

Environmental issues caused by untreated animal manure and crop straws require the development of resource recovery from waste through a circular economy approach. Swine manure and maize straws as the main agricultural biomass can be a renewable resource to produce biofuels and chemicals, and...

A 7-year multisite field experiment was performed to assess the relative importance of climate, soil, and microbial properties in crop production in a wheat cropping system under contrasting fertilization management (i.e., continuous organic vs. chemical fertilization). The results showed that...

In a thinking of circular economy, the understanding of how problematic chemical substances may migrate and travel across the various boundaries of a life-cycle is of pivotal importance to ensure that the philosophy of reuse and recycle is not jeopardized by new risks of contamination. In this...

In a thinking of circular economy, the understanding of how problematic chemical substances may migrate and travel across the various boundaries of a life-cycle is of pivotal importance to ensure that the philosophy of reuse and recycle is not jeopardized by new risks of contamination. In this...

In the past decade, hog production has increasingly become consolidated, with larger operations producing a greater volume of hog manure on smaller areas. With less cropland for spreading the manure, hog farmers may be compensating through more effective manure management. The authors use data...

In this paper the authors investigate individuals' exposure to indoor air pollution. Using new survey data from Bangladesh, they analyze exposure at two levels - differences within households attributable to family roles, and differences across households attributable to income and education....

Indoor air pollution (IAP) from cooking and heating is estimated to kill a million children annually in developing countries. To promote a better understanding of IAP, the authors investigate the determinants of IAP in Bangladesh using the latest air monitoring technology and a national...

This study was carried out in the Teaching and Research Farm of Delta State University, Asaba Campus from March 2008 to June 2010 to evaluate the response of grain weight of maize to variety, organic manure and inorganic fertilizer. The experiment was carried out in a Randomized Complete Block...

Despite describing a decline in soil fertility, Northern Ghanaian smallholders have not universally adopted use of organic, sustainable soil amendments such as compost. Farmers’ decisions about whether to use compost depend on their need and ability to do so. The agroecological context of a...

Weed control is a serious problem in smallholder conservation agriculture farming areas in Zimbabwe. Green Manure Cover Crops (GMCCs), which improve soil fertility and reduce weeds through allelopathy, are likely to reduce the cost of weed control in these areas. A laboratory study was conducted...

Nutrients from livestock and poultry manure are key sources of water pollution. Ever-growing numbers of animals per farm and per acre have increased the risk of water pollution. New Clean Water Act regulations compel the largest confined animal producers to meet nutrient application standards...

Indoor air pollution (IAP) from cooking and heating is estimated to kill a million children annually in developing countries. To promote a better understanding of IAP, the authors investigate the determinants of IAP in Bangladesh using the latest air monitoring technology and a national...

In this paper the authors investigate individuals' exposure to indoor air pollution. Using new survey data from Bangladesh, they analyze exposure at two levels-differences within households attributable to family roles, and differences across households attributable to income and education....

We estimated a normalized translog yield-response model using African farm-household survey data to compare the yield of smallholder maize production under integrated soil fertility management (ISFM) and chemical-based soil fertility management. Controlling for other factors, maize yield...