Influence of mineral and organic fertilizers on soil organic carbon pools
作者： Sándor Hoffmann , Elke Schulz , Gábor Csitári , László Bankó
DOI: 10.1080/03650340601048652
关键词: Total organic carbon 、 Field experiment 、 Agronomy 、 Carbon 、 Soil carbon 、 Human fertilization 、 Organic matter 、 Fertilizer 、 Long-term experiment 、 Chemistry
摘要: Abstract The influence of farmyard manure (FYM) and equivalent mineral NPK application on organic matter content, hot water extractable carbon (HWC), microbial biomass C (Cmic), grain yields in a long-term field experiment was assessed after 40 years Hungary. unfertilized plot, FYM fertilized plots with fertilizer contained 0.99%, 1.13% 1.05% total (TOC) respectively. Compared to the resulted 8.2% higher TOC than fertilization. highest only 1.21%, much lower expected for soil containing 21.3% clay. quantity HWC varied depending type fertilization: control, treatments lead 29% more fertilization (FYM: 328 mg kg−1; NPK: 264 mg kg−1). impact Cmic contrary. 304 423 mg kg−1 Cmic, difference 119 mg 42% as compared t...
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