Carbon sequestration potential and sustainable yield index for groundnut- and fallow-based cropping systems

2006 ◽  
Vol 144 (3) ◽  
pp. 249-259 ◽  
Author(s):  
P. K. GHOSH ◽  
M. C. MANNA ◽  
D. DAYAL ◽  
R. H. WANJARI
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Storage ◽  
Rainy Season ◽  
Cropping Systems ◽  
Sustainable Yield ◽  
Total System ◽  
System Productivity ◽  
Sustainable Yield Index ◽  
Organic Carbon Storage

Soil organic carbon storage encompasses both soil productivity and environmental capabilities. The influence of fertilizer (nitrogen and phosphorus) levels (0 NP, 0·5 NP, 1·0 NP (recommended standard) or 1·5 NP) on total system productivity, sustainable yield index and soil organic carbon storage in Vertisols (Typic Haplustert) under groundnut and fallow-based cropping systems were examined in a field experiment over 6 years. The aim was to identify a system that provided an acceptable balance between total system productivity and soil organic carbon restoration. The experiment comprised two rainy season crops (groundnut or fallow) and five post-rainy season crops (wheat, mustard, chickpea, sunflower or summer groundnut), each post-rainy season crop with four levels of NP fertilizer. The total system productivity was 130% higher in the groundnut-based than in the fallow-based system and was in the order: groundnut–groundnut>groundnut–chickpea>groundnut–wheat>groundnut–mustard>groundnut–sunflower. The sustainable yield index was highest in the groundnut–groundnut system. The gross C input was relatively higher in the groundnut-based system but the C loss rate was greater. The amount of residue needed per ha per year to compensate for loss of soil organic carbon was estimated to be 4·3 t in the fallow-based and 7·6 t in the groundnut–based cropping system. Though the total system productivity was greater in groundnut–groundnut and groundnut–chickpea systems, soil organic carbon declined. The groundnut–wheat system contributed more C, particularly root biomass C, than other systems, improved the restoration of soil organic carbon and maintained total system productivity. It was concluded that current fertilizer recommendations are adequate for maintaining yields in groundnut-based systems but the addition of crop residues at regular intervals along with fertilizer is necessary to maintain restoration of soil organic carbon.

Forage-Based Cropping Systems and Soil Organic Carbon Storage

2019 ◽  
pp. 363-376
Author(s):  
Arvind Kumar Rai ◽  
Srinivasan Ramakrishnan ◽  
Nirmalendu Basak ◽  
Parul Sundha ◽  
A. K. Dixit ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Storage ◽  
Cropping Systems ◽  
Soil Organic Carbon Storage ◽  
Organic Carbon Storage

Soil Organic Carbon Storage under Biofuel Cropping Systems in a Humid, Continental Climate

2018 ◽  
Vol 110 (5) ◽  
pp. 1748-1753 ◽  
Author(s):  
Mostafa A. Ibrahim ◽  
Teresita Chua-Ona ◽  
Matt Liebman ◽  
Michael L. Thompson
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Storage ◽  
Cropping Systems ◽  
Soil Organic Carbon Storage ◽  
Organic Carbon Storage ◽  
Continental Climate

scholarly journals Maximum soil organic carbon storage in Midwest U.S. cropping systems when crops are optimally nitrogen-fertilized

PLoS ONE ◽  
2017 ◽  
Vol 12 (3) ◽  
pp. e0172293 ◽  
Author(s):  
Hanna J. Poffenbarger ◽  
Daniel W. Barker ◽  
Matthew J. Helmers ◽  
Fernando E. Miguez ◽  
Daniel C. Olk ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Storage ◽  
Cropping Systems ◽  
Soil Organic Carbon Storage ◽  
Organic Carbon Storage

scholarly journals Integrating Biochar and Inorganic Fertilizer Improves Productivity and Profitability of Irrigated Rice in Ghana, West Africa

Agronomy ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 904
Author(s):  
Dilys S. MacCarthy ◽  
Eric Darko ◽  
Eric K. Nartey ◽  
Samuel G. K. Adiku ◽  
Abigail Tettey
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Storage ◽  
Cropping Systems ◽  
Inorganic Fertilizer ◽  
N Recovery ◽  
Irrigated Rice ◽  
Soil Organic Carbon Storage ◽  
Organic Carbon Storage ◽  
N Rates

The efficiency of mineral fertilizer use in most soils in Sub-saharan Africa is low. Prominent among the reasons for this is low soil carbon stock. In this study, we hypothesized that in the short term, combined use of biochar and inorganic fertilizer in irrigated rice (Oryza sativa var KRC Baika) cropping systems will increase soil organic carbon storage, N recovery and agronomic efficiency of N use (above world average of 55% and 20 kg grain·kg−1·N respectively) and improved economic returns compared to the sole use of inorganic fertilizer. A two-year (4‒cropping cycles) field trial was, thus, conducted on a Vertisol. The experiments were designed as split–plot with two (0 and 10 t·ha−1) biochar and four (0, 45, 90, 120 kg·ha−1·N) nitrogen application rates. Additionally, the effect of biochar on the chemical properties of the soil was investigated using standard protocols. Biochar application improved the soil organic carbon storage in the topsoil. There were significant interactions between the application of biochar and nitrogen fertilizer on yield parameters. Introducing biochar significantly increased root volume and nutrient (N, P and K) uptake, resulting in increased grain and straw yield. Grain yields under biochar amended plots were higher than sole fertilizer amended plots in 14 out of 16 instances (cropping cycles × N rates). The increase in grain yield was between 12 to 29% across N rates. Biochar amendment also enhanced agronomic N use and apparent N recovery efficiencies in 3 out of the 4 cropping cycles. Gross margin indicated that biochar application under irrigated rice cropping systems is economically feasible in all cropping cycles and N rates. However, the value cost ratio of biochar application was higher than for sole inorganic fertilizer in three out of the four cropping cycles (each cropping cycle has three N rates). The soil organic carbon storage of biochar amended soil increased by 17% under unfertilized condition and by 32% under fertilized condition. To enable the promotion and efficient use of the biochar technology in enhancing productivity and profitability in irrigated rice, extension officers and farmers will need to be trained on how to char the rice husk to reduce emissions prior to upscaling the technology to farmers.

Modelling soil organic carbon storage with RothC in irrigated Vertisols under cotton cropping systems in the sub-tropics

2014 ◽  
Vol 143 ◽  
pp. 38-49 ◽  
Author(s):  
Nimai Senapati ◽  
Nilantha R. Hulugalle ◽  
Pete Smith ◽  
Brian R. Wilson ◽  
Jagadeesh B. Yeluripati ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Storage ◽  
Cropping Systems ◽  
Soil Organic Carbon Storage ◽  
Organic Carbon Storage
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