The main hypothesis of present thesis is that the effect of plant residues left on the surface of the sward to decompose on the growth of plants and content of soil organic carbon (SOC) is influenced by the management ...

Maakera rahvastiku kasv toob kaasa üha uusi lahendamist vajavaid keskkonnaprobleeme. Intensiivistuva toiduainete tootmise tingimustes on vaja üha enam tähelepanu pöörata toiduohutuse tagamisele. Käesoleva doktoritöö ...

Spring oilseed rape is an important oilseed crop, the area of which has increased significantly in northern Europe, including Estonia. Spring oilseed rape is predominantly autogamous but cross-pollination can have several ...

Ahtalehise mustika (Vaccinium angustifolium Ait.) looduslikud kasvukohad asuvad Põhja-Ameerikas, mis võimaldab seal rakendada poollooduslikku kasvatustehnoloogiat. Kasvualad rajatakse metsaraie järel, kasutades seal ...

In the Baltic States, the main goal in apple- related research has been to find out the winter hardy rootstocks and cultivars. The focus in yield quality studies has been on apple size, appearance and storability. Different ...

This thesis suggests that society’s waste products such as municipal wastewater, sewage sludge and biogas digestate could all be used in willow cultivation providing valuable resources to develop the production of bioenergy ...

Present thesis studies the impacts of slurry fertilization on nutrient leaching and on the efficiency of using activated carbon (AC) as a measure in its reduction. In addition research assesses the cattle slurry as a source ...

The aim of the current study was to investigate based on a five-year crop rotation experiment (field pea, potato, barley under-sown with red clover, red clover, and winter wheat) situated in Tartu, Estonia, the impact of ...

According to the main objectives of the study, the following conclusions could be presented: 1. The drastic decrease in arable land use in the transition to a free market economy continued until EU CAP was implemented in ...