Integrating the use of controlled release fertilizers into Hungarian vegetable production technologies (D 38315 post-doctoral OTKA project) 
By measuring the activity of stress enzymes during seedling growth, it was objectively showed that the application of controlled release fertilizers (CRFs) causes less stress than the use of traditional fertilizers, and also shortened the raising period. Use of ammonium containing CRF resulted in lower nitrate concentration in lettuce, radish and kohlrabi; however, at the same time it extended the growing period. Combination of controlled-release fertilizers (CRFs) and fertigation resulted in better water use efficiency without decreasing the yield. 

Improving vegetable quality and decreasing environmental loading by application of controlled release fertilizers (JAP-20/2006 Hungarian-Japanese TÉT project) 
Innovative, Japanese application methods of CRFs were tested under Hungarian conditions for the cultivation of some vegetable crops. Application of potassium containing CRFs increased concentration of some antioxidant components of processing tomato. Close to 100% nutrient use efficiency in lettuce cultivation was achieved by using CRFs. Decreased nitrate concentration in some vegetables was achieved without decreasing their yield. 

Development of climate adaption capability and production security of the Solanaceae family (TÉT_16-1-2016-0203 Hungarian-Japanese TÉT project) 
Grafting onto Japanese rootstock significantly enhanced leaf chlorophyll content and yield of eggplant but did not have an effect on sweet pepper. Inoculation of sweet pepper with mycorrhizal fungi had a significant positive effect on the photosynthetic activity, the biomass and the yield. In addition, it increased the proportion of the marketable pepper pods and balanced crop production even during the less optimal periods of the growing season.