Municipal waste composts in organic agriculture, aiming to the future

The Finnish study shows possibilities for using high quality municipal waste composts as fertilizers without any negative effects on soil heavy metals, hygienic quality or microbiological functions

Organic waste management studies : inventory in Juva

Two different organic waste management systems have been studied in the BERAS project. The most extensive study was of biowaste and nutrient flows in the community of Juva, Finland. The research methods used were waste flow and substance flow studies

Kuidas leida tööõnne?

Eesti Arst 2018; 97(5):280–282 &nbsp

Derivation of a macroscopic model for transport of strongly sorbed solutes in the soil using homogenization theory

In this paper we derive a model for the diffusion of strongly sorbed solutes in soil taking into account diffusion within both the soil fluid phase and the soil particles. The model takes into account the effect of solutes being bound to soil particle surfaces by a reversible nonlinear reaction. Effective macroscale equations for the solute movement in the soil are derived using homogenization theory. In particular, we use the unfolding method to prove the convergence of nonlinear reaction terms in our system. We use the final, homogenized model to estimate the effect of solute dynamics within soil particles on plant phosphate uptake by comparing our double-porosity model to the more commonly used single-porosity model. We find that there are significant qualitative and quantitative differences in the predictions of the models. This highlights the need for careful experimental and theoretical treatment of plant-soil interaction when trying to understand solute losses from the soil

Possibilities for developing combined recycling and renewable energy production in Juva and Järna

Two ways of local recycling of te solid fraction of biowaste, one of which is combined with the production of biogas, have been studied within the BERAS-project. On-farm biogas plant treatment in Juva could also support agriculture

Sustainable recycling of compost products in plant production

In the research project "Sustainable recycling of compost products in plant production" we study and verify the effects of the use of biowaste and sewage sludge composts in plant production

Utilitarian and moralistic farmers take equally good care of animal welfare in Finland

A study of Finnish farmers' attitudes towards production animal welfare revealed that a variety of attitudes and management practices can lead to equally good result regarding animal health, productivity and welfare. Organic farmers differed from conventional farmers in providing animals better chances for a pleasant life. The also perceived they could improve animal welfare more than other farmers

The effect of municipal waste composts on grass nutrient yields

Field experiments with grass mixtures (Phleum pratense, Festuca pratensis) were established with a cereal cover crop (Hordeum vulgare) and fertilized with municipal waste composts on medium fine sand in Mikkeli in 2000

Variety trials of broccoli in organic farms

The aim of the organic variety trials on year 2004 was to find good varieties for organic broccoli production and varieties which stand covering cloths as long as possible nearly until harvest