Net?mineralization of organic matter and greenhouse gas emissions from Quebracho tannin?enriched manure applied to acidic and alkaline soils
نویسندگان
چکیده
Background Mitigation strategies to reduce greenhouse gas emissions, ammonia volatilization, and nitrate leaching from agriculture are important for the management of environmental pollution climate change. Tannins, which water-soluble polyphenolic compounds, were found emissions in animal husbandry systems when supplemented ruminant diets. Aim Two laboratory incubation experiments conducted investigate effects Quebracho tannin-enriched manure on carbon (C) nitrogen (N) mineralization processes, three different soils (sandy moderate acidic, sandy alkaline, loamy alkaline). Methods In two 4 9 weeks, soil samples analyzed K2SO4 extractable C N, NH4+ NO3–, microbial biomass C, pH. main experiment CO2, N2O, NH3 regularly monitored. Results Three days after application, CO2 reduced by 26%–37% N2O 80%–92% treatments compared with tannin-free manure. However, subsequent cumulative only alkaline applied Also, initial weeks net-mineralization application was significantly lower manure, reflecting an immobilization N short term or inhibition process physicochemical complexation proteins enzyme activities long term. both experiments, NO3– 23%–95% 3–9 Conclusion These results highlight mitigation potential leaching, suggest that may be increased depending properties.
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ژورنال
عنوان ژورنال: Journal of Plant Nutrition and Soil Science
سال: 2021
ISSN: ['1436-8730', '1522-2624']
DOI: https://doi.org/10.1002/jpln.202000495