Data

Impact of management on soil carbon and nutrient cycling and storage under contrasting farming systems

University of New England, Australia
Singh, Bhupinder ; Cowie, Annette ; Sarker, Jharna ; NSW Department of Primary Industries
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://hdl.handle.net/1959.11/215438&rft.title=Impact of management on soil carbon and nutrient cycling and storage under contrasting farming systems&rft.identifier=https://hdl.handle.net/1959.11/215438&rft.publisher=University of New England, Australia&rft.description=For this research, soils were collected from three long-term (16–46 years) management systems in semi-arid (Luvisol, at Condobolin, NSW), Mediterranean (Luvisol, at Merredin, WA) and sub-tropical (Vertisol, at Hermitage, QLD) environments in Australia from 0–10 cm, 10–20 cm and 20–30 cm depths. The practices at Condobolin comprised conventional (CT) and reduced tillage (RT) under mixed crop-pasture rotation, no-till (NT) under continuous cereal–cover crop rotation, and perennial pasture (PP). The practices at Merredin comprised stubble either retained (SR) or burnt (SB) under direct-drilled continuous wheat–legume rotation. The practices at Hermitage comprised a factorial combination of CT, NT, SR, SB, with either 0 (0N) or 90 kg urea-N ha-1 (90N) under continuous wheat–wheat rotation. To see soil aggregate stability, and SOC and nutrient stocks across the three long-term sites, dry and wet sieving techniques were performed to fractionate mega- (> 2 mm), macro- (2–0.25 mm), micro-aggregate (0.25–0.053 mm) and silt-plus-clay (< 0.053 mm) fractions. Further, to understand SOC and nutrient (N, P and S) mineralisation dynamics in bulk soil and soil aggregates, soils with or without crop residues were incubated for 126 days. To understand the allocation dynamics of newly assimilated C and N in a canola crop–soil system with different tillage and N fertilisation treatments, a field-based 13C15N isotopic study was performed at Wagga Wagga, NSW. The results showed that long-term management practices influenced carbon and nutrient (N, P and S) concentrations in soil aggregates, although had minimal impact on soil carbon and nutrient storage and aggregate stability. Soil organic matter was shown as a ready source of plant-available nutrients with variations across management practices. Crop stubble input in tilled (cf. no-till) systems caused a greater release of available nutrients. Further, tillage enhanced newly-assimilated carbon input into a soil system, leading a greater crop nitrogen uptake. These novel findings enhanced understanding of the impact of management practices on soil carbon and nutrient storage and nutrient availability in agro-ecosystems.&rft.creator=Singh, Bhupinder &rft.creator=Cowie, Annette &rft.creator=Sarker, Jharna &rft.creator=NSW Department of Primary Industries &rft.date=2017&rft.coverage=northlimit=-32.833074255289; southlimit=-33.318686882724; westlimit=146.78491811393; eastLimit=147.51276235221; projection=WGS84&rft.coverage=northlimit=-31.100221855691; southlimit=-31.887124576244; westlimit=117.85678971127; eastLimit=118.70823014095; projection=WGS84&rft.coverage=northlimit=-34.622809589143; southlimit=-35.580041838556; westlimit=146.66001821712; eastLimit=148.05528188898; projection=WGS84&rft.coverage=northlimit=-28.149697158763; southlimit=-28.291878045159; westlimit=152.0276399467; eastLimit=152.23363359904; projection=WGS84&rft.coverage=Australia, Condobolin&rft.coverage=Australia, Wagga Wagga&rft.coverage=Australia, Hermitage&rft.coverage=Australia, Merredin&rft_rights=Mediated&rft_rights=Rights holder: NSW Department of Primary Industries&rft_rights=Rights holder: School of Environmental & Rural Science&rft_rights=Rights holder: NSW Department of Primary Industries&rft_rights=Rights holder: School of Environmental & Rural Science&rft_rights=Contact Chief Investigator with access and reuse queries.&rft_subject=nitrogen-15 isotope&rft_subject=carbon-13 isotope&rft_subject=priming effect&rft_subject=sulphur&rft_subject=phosphorus&rft_subject=nitrogen&rft_subject=aggregate-size distribution&rft_subject=farming system&rft_subject=stubble&rft_subject=Vertisol&rft_subject=Luvisol&rft_subject=microbial biomass&rft_subject=pulse labelling&rft_subject=soil respiration&rft_subject=wheat residue&rft_subject=canola residue&rft_subject=tillage&rft_subject=Soil Chemistry (excl. Carbon Sequestration Science)&rft_subject=ENVIRONMENTAL SCIENCES&rft_subject=SOIL SCIENCES&rft_subject=Farming Systems Research&rft_subject=AGRICULTURAL AND VETERINARY SCIENCES&rft_subject=AGRICULTURE, LAND AND FARM MANAGEMENT&rft_subject=Crop and Pasture Nutrition&rft_subject=CROP AND PASTURE PRODUCTION&rft_subject=Farmland, Arable Cropland and Permanent Cropland Soils&rft_subject=ENVIRONMENT&rft_subject=SOILS&rft_subject=Farmland, Arable Cropland and Permanent Cropland Land Management&rft_subject=LAND AND WATER MANAGEMENT&rft_subject=Environmentally Sustainable Plant Production not elsewhere classified&rft_subject=PLANT PRODUCTION AND PLANT PRIMARY PRODUCTS&rft_subject=ENVIRONMENTALLY SUSTAINABLE PLANT PRODUCTION&rft.type=dataset&rft.language=English Access the data
Cite Saved to MyRDA Save to MyRDA

Licence & Rights:

view details

Mediated

Rights holder: NSW Department of Primary Industries

Rights holder: School of Environmental & Rural Science

Rights holder: NSW Department of Primary Industries

Rights holder: School of Environmental & Rural Science

Contact Chief Investigator with access and reuse queries.

Access:

Other

Full description

For this research, soils were collected from three long-term (16–46 years) management systems in semi-arid (Luvisol, at Condobolin, NSW), Mediterranean (Luvisol, at Merredin, WA) and sub-tropical (Vertisol, at Hermitage, QLD) environments in Australia from 0–10 cm, 10–20 cm and 20–30 cm depths. The practices at Condobolin comprised conventional (CT) and reduced tillage (RT) under mixed crop-pasture rotation, no-till (NT) under continuous cereal–cover crop rotation, and perennial pasture (PP). The practices at Merredin comprised stubble either retained (SR) or burnt (SB) under direct-drilled continuous wheat–legume rotation. The practices at Hermitage comprised a factorial combination of CT, NT, SR, SB, with either 0 (0N) or 90 kg urea-N ha-1 (90N) under continuous wheat–wheat rotation. To see soil aggregate stability, and SOC and nutrient stocks across the three long-term sites, dry and wet sieving techniques were performed to fractionate mega- (> 2 mm), macro- (2–0.25 mm), micro-aggregate (0.25–0.053 mm) and silt-plus-clay (< 0.053 mm) fractions. Further, to understand SOC and nutrient (N, P and S) mineralisation dynamics in bulk soil and soil aggregates, soils with or without crop residues were incubated for 126 days. To understand the allocation dynamics of newly assimilated C and N in a canola crop–soil system with different tillage and N fertilisation treatments, a field-based 13C15N isotopic study was performed at Wagga Wagga, NSW. The results showed that long-term management practices influenced carbon and nutrient (N, P and S) concentrations in soil aggregates, although had minimal impact on soil carbon and nutrient storage and aggregate stability. Soil organic matter was shown as a ready source of plant-available nutrients with variations across management practices. Crop stubble input in tilled (cf. no-till) systems caused a greater release of available nutrients. Further, tillage enhanced newly-assimilated carbon input into a soil system, leading a greater crop nitrogen uptake. These novel findings enhanced understanding of the impact of management practices on soil carbon and nutrient storage and nutrient availability in agro-ecosystems.

Notes

Funding SourceGrains Research and Development Corporation-DAN00169-GRDC Research Funding

Issued: 2017-10-31

Date Submitted : 2017-10-31

Data time period: 2013 to 2016

This dataset is part of a larger collection

Click to explore relationships graph
Help

Related Organisations

Related People

147.51276,-32.83307 147.51276,-33.31869 146.78492,-33.31869 146.78492,-32.83307 147.51276,-32.83307

147.14884023307,-33.075880569007

118.70823,-31.10022 118.70823,-31.88712 117.85679,-31.88712 117.85679,-31.10022 118.70823,-31.10022

118.28250992611,-31.493673215967

148.05528,-34.62281 148.05528,-35.58004 146.66002,-35.58004 146.66002,-34.62281 148.05528,-34.62281

147.35765005305,-35.10142571385

152.23363,-28.1497 152.23363,-28.29188 152.02764,-28.29188 152.02764,-28.1497 152.23363,-28.1497

152.13063677287,-28.220787601961

text: Australia, Condobolin

text: Australia, Wagga Wagga

text: Australia, Hermitage

text: Australia, Merredin

Subjects
Agricultural and Veterinary Sciences | Agriculture, Land and Farm Management | Crop and Pasture Production | Crop and Pasture Nutrition | Environment | Environmental Sciences | Environmentally Sustainable Plant Production | Environmentally Sustainable Plant Production Not Elsewhere Classified | Farming Systems Research | Farmland, Arable Cropland and Permanent Cropland Land Management | Farmland, Arable Cropland and Permanent Cropland Soils | Land and Water Management | Luvisol | Plant Production and Plant Primary Products | Soil Sciences | Soils | Soil Chemistry (Excl. Carbon Sequestration Science) | Vertisol | aggregate-size distribution | canola residue | carbon-13 isotope | farming system | microbial biomass | nitrogen | nitrogen-15 isotope | phosphorus | priming effect | pulse labelling | soil respiration | stubble | sulphur | tillage | wheat residue |

User Contributed Tags    

Login to tag this record with meaningful keywords to make it easier to discover

Identifiers