4 per Mille 4 per mille 1 Carbon sequestration rate 1 Farmyard manure 1 Fertilizers 1 Forestry 1 Hot water 1 Hot-water extractable carbon 1 Hungary 1 Labile organic carbon 1 Land use 1 Long-term field experiment 1 Long-term field experiments 1 Magnesium 1 Manures 1 Matthiola 1 Mineral fertilizers 1 Minerals 1 Organic carbon 1 Plant residues 1 Soils 1 Total Organic Carbon 1 Water 1 carbon 1 carbon sequestration 1 crop yield 1 grassland 1 long-term change 1 manure 1 nitrogen 1