We investigate the long-term impact of integrated nutrient management to study the influence of fertilizer and manure on different biochemical constituents and carbon mineralization of roots and stubble of finger millet (Eleusine coracana L.) at the Experimental Farm, University of Agricultural Sciences, Bangalore, India. The farm continuously received uniform treatments for 40-years during 1978–2018 under a groundnut + finger millet cropping system. Cellulose, hemicellulose, and ash contents for roots and stubble were recorded higher with the treatment T₅ [farmyard manure (FYM) at 10 t ha⁻¹ + 100% recommended dose of fertilizers (RDF)] while the control treatment showed their lowest values. The treatment T₅ caused a higher cumulative rate of CO₂ evolution from roots (49.68 mg CO₂ g^-1 C) and stubble (58.48 mg CO₂ g^-1 C) at the 98th day of incubation following a sigmoid curve pattern for the carbon mineralization. The correlation was highly significant between the rate of decomposition and cellulose content for roots (r = 0.892^**) and stubble (r = 0.947**). Unlikely, the correlation was negatively significant between the decomposition rate and the lignin content in roots (r = −0.745^*) and stubble (r = −0.720^*). We conclude that the combined application of FYM at 10 t ha⁻¹ and 100% RDF is the most efficient treatment to increase saccharification, reduce lignification, and sequester a higher rate of carbon mineralization capable of preserving the soil organic carbon (SOC) and facilitating alluviation of more resistant carbon in a Typic Kandiustalf soil.

中文翻译：

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生化成分表明在长期综合营养供应的 Typic Kandiustalf 下碳矿化

我们调查了综合养分管理的长期影响，以研究肥料和粪便对不同生化成分的影响，以及在班加罗尔农业科学大学实验农场的指粟 ( Eleusine coracana L.)根和茬的不同生化成分和碳矿化， 印度。该农场在 1978-2018 年间在花生 + 小米种植系统下连续接受了 40 年的统一处理。根和茬的纤维素、半纤维素和灰分含量在处理 T ₅ [农家肥 (FYM) 10 t ha ^-1  + 100% 推荐剂量的肥料 (RDF)]中记录更高，而对照处理显示出最低值. 治疗T ₅在培养的第 98 天，按照碳矿化的 sigmoid 曲线模式，从根 (49.68 mg CO ₂ g ^-1 C) 和残茬 (58.48 mg CO ₂ g ^-1 C)产生更高的 CO ₂进化累积速率。根 (r = 0.892 ^** ) 和残茬 (r = 0.947**)的分解速率与纤维素含量之间的相关性非常显着。不太可能，分解速率与根 (r = -0.745 ^* ) 和残茬 (r = -0.720 ^* ) 中木质素含量之间的相关性呈负显着性。我们得出结论，FYM 在 10 t ha ^-1 100% RDF 是增加糖化、减少木质化和隔离更高碳矿化率的最有效处理方法，能够保护土壤有机碳 (SOC) 并促进典型 Kandiustalf 土壤中更具抗性的碳的冲积。