Effects of nutrient supply on mitigation in a long-term experiment.

Abstract

Climate change and the possible solutions for stopping it are important questions of research, industry and agriculture. In the last two centuries the carbon dioxide (CO2) concentration has increased significantly due to human activity. About 20 % of the greenhouse gases come from agriculture which is 5% of carbon-dioxide. Due to the climate change the CO2 emission should be reduced in agriculture nevertheless the sector should supply the world's population with food in good quantity and quality.Evolving the HURO0802/092_AF project calculation of soil carbon stocks, examination the effects of plant nutrition methods and soil microbial activity on carbon cycle, characterization of adaptation capacity of the main plant species and studying the possibilities of decreasing CO2-emission based on the adaptation of plants were studied. The common research base allows soil and plant analysis connected to the carbon cycle in Westsik's crop rotation experiment which represent the typical farming systems of Eastern Hungarian Region, respectively and the experiment is appropriate for studying long-term effects of farming (straw, farmyard, main and second crop green manure). The results could contribute to the development of methods for decreasing the quantity of CO2 efflux from agriculture and for increasing the quantity of carbon stored in the soil. The experiences of study could contribute to the development of new agrotechnical methods for conservation of organic matter content of soil and they could result in new innovations to decrease the sensitivity to climate change.