BACKGROUND Composting is one of the most environmentally friendly treatments to inactivate pathogenic organisms or reduce them to acceptable levels. However, even under thermal conditions, some pathogenic organisms such as E. coli could exist for a long time in composting. Such great persistence may increase the possibility of outbreaks of these organisms and further increase the environmental ...

Perennial herbaceous crops can become the main basis for renewable energy production in agricultural ecosystems in future. To determine the plant species that are the most suitable for biomass production, their biological peculiarities and productivity, biochemical composition and thermophysical properties, social and ecological impact must be investigated thoroughly. The local varieties of per...

Nitrous oxide (N2O) emissions from a maize field in the North China Plain (Wangdu County, Hebei Province, China) were investigated using static chambers during two consecutive maize growing seasons in the 2008 and 2009. The N2O pulse emissions occurred with duration of about 10 days after basal and additional fertilizer applications in the both years. The average N20 fluxes from the CK (control...

Weeds can cause serious damage during soybean development, due to allelopathy, competition for water, light and nutrients. It is necessary investigate the influence of straw, weeds Conyza spp. Digitaria insularis, in growth, production composition grains. If there allelopathic compounds at crop. The aim this study was evaluate straw maize Urochloa brizantha (A.Rich.) R.D.Webster crops spp., D. ...

This work aimed to evaluate the agronomic responses intensification of grain production systems under water restriction in central region Minas Gerias, Brazil. We studied six systems, including soybean and maize monocropping with medium investment maintenance fertilization, annual alternating these crops or high investment, inclusion not ruzigrass for straw increment. Soybean lose yield potenti...

Solid biofuel is considered as a possible substitute for coal in household heat production because of the available and sustainable raw materials, while NOx emissions from its combustion have become serious problem. Nitrogen-containing compounds pyrolysis products important effects on conversion fuel-N into NOx-N. Understanding these converting pathways environmentally friendly use biomass fuel...