Abstract
Abstract 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 T 5 [farmyard manure (FYM) at 10 t ha −1 + 100% recommended dose of fertilizers (RDF)] while the control treatment showed their lowest values. The treatment T 5 caused a higher cumulative rate of CO 2 evolution from roots (49.68 mg CO 2 g ‐1 C) and stubble (58.48 mg CO 2 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.
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Claims 8
Claim · model-written summary
T5 gave higher cellulose, hemicellulose and ash in finger millet roots and stubble than the control.
- Taxon
- finger millet
Eleusine coracanae1 - Organ / stage
- roots and stubblee0
- Treatment
- T 5 [farmyard manure (FYM) at 10 t ha −1 + 100% recommended dose of fertilizers (RDF)]e0
- Outcome
- Cellulose, hemicellulose, and ash contentse0
- Direction
- highere0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cellulose, hemicellulose, and ash contents for roots and stubble were recorded higher with the treatment T 5 [farmyard manure (FYM) at 10 t ha −1 + 100% recommended dose of fertilizers (RDF)] while the control treatment showed their lowest values.”
e1“finger millet ( Eleusine coracana L.)”
Claim · model-written summary
T5 increased cumulative CO2 evolution from roots to 49.68 mg CO2 g−1 C at day 98.
- Taxon
- finger milletEleusine coracanae1
- Organ / stage
- rootse0
- Treatment
- T 5e0
- Outcome
- cumulative rate of CO 2 evolution from rootse0
- Direction
- highere0
- Value
- 49.68 mg CO 2 g ‐1 Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatment T 5 caused a higher cumulative rate of CO 2 evolution from roots (49.68 mg CO 2 g ‐1 C) and stubble (58.48 mg CO 2 g ‐1 C) at the 98th day of incubation”
e1“finger millet ( Eleusine coracana L.)”
Claim · model-written summary
T5 increased cumulative CO2 evolution from stubble to 58.48 mg CO2 g−1 C at day 98.
- Taxon
- finger milletEleusine coracanae1
- Organ / stage
- stubblee0
- Treatment
- T 5e0
- Outcome
- cumulative rate of CO 2 evolution from rootse0
- Direction
- highere0
- Value
- 58.48 mg CO 2 g ‐1 Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatment T 5 caused a higher cumulative rate of CO 2 evolution from roots (49.68 mg CO 2 g ‐1 C) and stubble (58.48 mg CO 2 g ‐1 C) at the 98th day of incubation”
e1“finger millet ( Eleusine coracana L.)”
Claim · model-written summary
Root decomposition rate correlated positively with cellulose content.
- Taxon
- finger milletEleusine coracanae1
- Organ / stage
- rootse0
- Outcome
- rate of decompositione0
- Value
- r = 0.892 **e0
Not reportedCompoundDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The correlation was highly significant between the rate of decomposition and cellulose content for roots (r = 0.892 ** )”
e1“finger millet ( Eleusine coracana L.)”
Claim · model-written summary
Stubble decomposition rate correlated positively with cellulose content.
- Taxon
- finger milletEleusine coracanae1
- Organ / stage
- stubblee0
- Outcome
- rate of decompositione0
- Value
- r = 0.947**e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The correlation was highly significant between the rate of decomposition and cellulose content for roots (r = 0.892 ** ) and stubble (r = 0.947**)”
e1“finger millet ( Eleusine coracana L.)”
Claim · model-written summary
Root decomposition rate correlated negatively with lignin content.
- Taxon
- finger milletEleusine coracanae1
- Organ / stage
- rootse0
- Outcome
- decomposition ratee0
- Direction
- negativelye0
- Value
- r = −0.745 *e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the correlation was negatively significant between the decomposition rate and the lignin content in roots (r = −0.745 * )”
e1“finger millet ( Eleusine coracana L.)”
Claim · model-written summary
Stubble decomposition rate correlated negatively with lignin content.
- Taxon
- finger milletEleusine coracanae1
- Organ / stage
- stubblee0
- Outcome
- decomposition ratee0
- Direction
- negativelye0
- Value
- r = −0.720 *e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the correlation was negatively significant between the decomposition rate and the lignin content in roots (r = −0.745 * ) and stubble (r = −0.720 * )”
e1“finger millet ( Eleusine coracana L.)”
Claim · model-written summary
The authors judged combined FYM and RDF most efficient for saccharification, reduced lignification and carbon mineralization.
- Taxon
- finger milletEleusine coracanae1
- Treatment
- combined application of FYM at 10 t ha −1 and 100% RDFe0
- Outcome
- increase saccharification, reduce lignification, and sequester a higher rate of carbon mineralizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“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”
e1“finger millet ( Eleusine coracana L.)”
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