Environmental pollution with heavy metals is a worldwide problem, mainly related to the progress of metallurgy. This study was carried out at the Department of Plant Physiology, Faculty of Biology, University of Latvia. The aim of this work was to study the impact of different substrate zinc...

Certified organic dairy farms are one of the most effective measures in terms of climate policy to reduce GHG and ammonia emissions due to the fact that animals are grazed in the summer, manure is composted and the animals are fed mainly with self-produced fodder. However, to achieve the economic...

Field experiments on perennial Leguminosaes in organic crop rotation of Priekuli Research Centre of the Institute of Agricultural Resources and Economics were established under the project "Improvement of the accounting system for greenhouse gas (GHG) emissions and carbon dioxide (CO₂)...

Milk production and milk composition are of prime economic importance for farmers. Thus, as protein volume in feed is increased, not only more milk is produced, bet also threats for environmental pollution are growing. The objective of this work was to establish milk urea content in different...

Agriculture is the main source of global ammonia emissions. It generates about 75% of global ammonia emissions into the atmosphere and soil fertilization accounts for half of agricultural emissions. Fresh air is a basic human need for both health and the immune system. Air pollution can be defined...

A research on the NO_x reduction potential in diesel engine emissions injecting a 50% water-bioethanol blend in the engine intake system was carried out. Experiments were conducted on the test bench equipped with an Opel 16 DA four-cylinder 1.6-litre diesel engine and a two-tank system to run the...

The rapeseed oil cake economical and environmental factors were evaluated by its using in red deer (Cervus elaphus) feeding, replacing the equivalent feed value of feed stock used in traditional rolled grain ration used during the winter period. We concluded that 0.2 kg dose in ratio of rapeseed...

Agriculture contributes to the economic growth in rural areas and it is a key income source for this population. The sector is not only important from an economic point of view but also in some cases from a social perspective. However, land as a resource of agricultural production is not fully...

Bee honey is a well-known natural food commodity with very complex composition especially due to the great amount of such organic compounds as carbohydrates. Composition of honey is tightly dependent on the origin, both the botanical and geographical, and is influenced by natural factors as well as ...

Polycyclic aromatic hydrocarbons (PAH) are widespread contaminants representing an important group of mutagens and carcinogens that have been detected in various foods - cereals, oils, fats, smoked meat and fish products. The contents of the PAH4 were analyzed from traditionally smoked fish and...