Sustainability of a Rainfed Wheat Production System in Relation to Water and Nitrogen Dynamics in the Soil in the Eyre Peninsula, South Australia
Rainfed wheat production systems are usually characterized by low-fertility soils and frequent droughts, creating an unfavorable environment for sustainable crop production. In this study, we used a processed-based biophysical numerical model to evaluate the water balance and nitrogen (N) dynamics i...
Ausführliche Beschreibung
Autor*in: |
Vinod Phogat [verfasserIn] Jirka Šimůnek [verfasserIn] Paul Petrie [verfasserIn] Tim Pitt [verfasserIn] Vilim Filipović [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2023 |
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Schlagwörter: |
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Übergeordnetes Werk: |
In: Sustainability - MDPI AG, 2009, 15(2023), 13370, p 13370 |
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Übergeordnetes Werk: |
volume:15 ; year:2023 ; number:13370, p 13370 |
Links: |
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DOI / URN: |
10.3390/su151813370 |
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Katalog-ID: |
DOAJ093271026 |
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10.3390/su151813370 doi (DE-627)DOAJ093271026 (DE-599)DOAJ4729835b0b7e4e6099f4f93a970946a2 DE-627 ger DE-627 rakwb eng TD194-195 TJ807-830 GE1-350 Vinod Phogat verfasserin aut Sustainability of a Rainfed Wheat Production System in Relation to Water and Nitrogen Dynamics in the Soil in the Eyre Peninsula, South Australia 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Rainfed wheat production systems are usually characterized by low-fertility soils and frequent droughts, creating an unfavorable environment for sustainable crop production. In this study, we used a processed-based biophysical numerical model to evaluate the water balance and nitrogen (N) dynamics in soils under rainfed wheat cultivation at low (219 mm, Pygery) and medium rainfall (392 mm, Yeelanna) sites in south Australia over the two seasons. Estimated evapotranspiration components and N partitioning data were used to calibrate and validate the model and to compute wheat’s water and N use efficiency. There was a large disparity in the estimated water balance components at the two sites. Plant water uptake accounted for 40–50% of rainfall, more at the low rainfall site. In contrast, leaching losses of up to 25% of seasonal rainfall at the medium rainfall site (Yeelanna) indicate a significant amount of water evading the root zone. The model-predicted N partitioning revealed that ammonia–nitrogen (NH<sub<4</sub<–N) contributed little to plant N nutrition, and its concentration in the soil remained below 2 ppm throughout the crop season except immediately after the NH<sub<4</sub<–N-based fertilizer application. Nitrate–nitrogen (NO<sub<3</sub<–N) contributed to most N uptake during both seasons at both locations. The N losses from the soil at the medium rainfall site (3.5–20.5 kg ha<sup<−1</sup<) were mainly attributed to NH<sub<4</sub<–N volatilization (N<sub<v</sub<) and NO<sub<3</sub<–N leaching (N<sub<L</sub<) below the crop root zone. Water productivity (8–40 kg ha<sup<−1</sup< mm<sup<−1</sup<) and N use efficiency (31–41 kg kg<sup<−1</sup<) showed immense variability induced by climate, water availability, and N dynamics in the soil. These results suggest that combining water balance and N modeling can help manage N applications to optimize wheat production and minimize N losses in rainfed agriculture. wheat rainfed water balance nitrogen uptake water productivity nitrogen use efficiency Environmental effects of industries and plants Renewable energy sources Environmental sciences Jirka Šimůnek verfasserin aut Paul Petrie verfasserin aut Tim Pitt verfasserin aut Vilim Filipović verfasserin aut In Sustainability MDPI AG, 2009 15(2023), 13370, p 13370 (DE-627)610604120 (DE-600)2518383-7 20711050 nnns volume:15 year:2023 number:13370, p 13370 https://doi.org/10.3390/su151813370 kostenfrei https://doaj.org/article/4729835b0b7e4e6099f4f93a970946a2 kostenfrei https://www.mdpi.com/2071-1050/15/18/13370 kostenfrei https://doaj.org/toc/2071-1050 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 13370, p 13370 |
spelling |
10.3390/su151813370 doi (DE-627)DOAJ093271026 (DE-599)DOAJ4729835b0b7e4e6099f4f93a970946a2 DE-627 ger DE-627 rakwb eng TD194-195 TJ807-830 GE1-350 Vinod Phogat verfasserin aut Sustainability of a Rainfed Wheat Production System in Relation to Water and Nitrogen Dynamics in the Soil in the Eyre Peninsula, South Australia 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Rainfed wheat production systems are usually characterized by low-fertility soils and frequent droughts, creating an unfavorable environment for sustainable crop production. In this study, we used a processed-based biophysical numerical model to evaluate the water balance and nitrogen (N) dynamics in soils under rainfed wheat cultivation at low (219 mm, Pygery) and medium rainfall (392 mm, Yeelanna) sites in south Australia over the two seasons. Estimated evapotranspiration components and N partitioning data were used to calibrate and validate the model and to compute wheat’s water and N use efficiency. There was a large disparity in the estimated water balance components at the two sites. Plant water uptake accounted for 40–50% of rainfall, more at the low rainfall site. In contrast, leaching losses of up to 25% of seasonal rainfall at the medium rainfall site (Yeelanna) indicate a significant amount of water evading the root zone. The model-predicted N partitioning revealed that ammonia–nitrogen (NH<sub<4</sub<–N) contributed little to plant N nutrition, and its concentration in the soil remained below 2 ppm throughout the crop season except immediately after the NH<sub<4</sub<–N-based fertilizer application. Nitrate–nitrogen (NO<sub<3</sub<–N) contributed to most N uptake during both seasons at both locations. The N losses from the soil at the medium rainfall site (3.5–20.5 kg ha<sup<−1</sup<) were mainly attributed to NH<sub<4</sub<–N volatilization (N<sub<v</sub<) and NO<sub<3</sub<–N leaching (N<sub<L</sub<) below the crop root zone. Water productivity (8–40 kg ha<sup<−1</sup< mm<sup<−1</sup<) and N use efficiency (31–41 kg kg<sup<−1</sup<) showed immense variability induced by climate, water availability, and N dynamics in the soil. These results suggest that combining water balance and N modeling can help manage N applications to optimize wheat production and minimize N losses in rainfed agriculture. wheat rainfed water balance nitrogen uptake water productivity nitrogen use efficiency Environmental effects of industries and plants Renewable energy sources Environmental sciences Jirka Šimůnek verfasserin aut Paul Petrie verfasserin aut Tim Pitt verfasserin aut Vilim Filipović verfasserin aut In Sustainability MDPI AG, 2009 15(2023), 13370, p 13370 (DE-627)610604120 (DE-600)2518383-7 20711050 nnns volume:15 year:2023 number:13370, p 13370 https://doi.org/10.3390/su151813370 kostenfrei https://doaj.org/article/4729835b0b7e4e6099f4f93a970946a2 kostenfrei https://www.mdpi.com/2071-1050/15/18/13370 kostenfrei https://doaj.org/toc/2071-1050 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 13370, p 13370 |
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10.3390/su151813370 doi (DE-627)DOAJ093271026 (DE-599)DOAJ4729835b0b7e4e6099f4f93a970946a2 DE-627 ger DE-627 rakwb eng TD194-195 TJ807-830 GE1-350 Vinod Phogat verfasserin aut Sustainability of a Rainfed Wheat Production System in Relation to Water and Nitrogen Dynamics in the Soil in the Eyre Peninsula, South Australia 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Rainfed wheat production systems are usually characterized by low-fertility soils and frequent droughts, creating an unfavorable environment for sustainable crop production. In this study, we used a processed-based biophysical numerical model to evaluate the water balance and nitrogen (N) dynamics in soils under rainfed wheat cultivation at low (219 mm, Pygery) and medium rainfall (392 mm, Yeelanna) sites in south Australia over the two seasons. Estimated evapotranspiration components and N partitioning data were used to calibrate and validate the model and to compute wheat’s water and N use efficiency. There was a large disparity in the estimated water balance components at the two sites. Plant water uptake accounted for 40–50% of rainfall, more at the low rainfall site. In contrast, leaching losses of up to 25% of seasonal rainfall at the medium rainfall site (Yeelanna) indicate a significant amount of water evading the root zone. The model-predicted N partitioning revealed that ammonia–nitrogen (NH<sub<4</sub<–N) contributed little to plant N nutrition, and its concentration in the soil remained below 2 ppm throughout the crop season except immediately after the NH<sub<4</sub<–N-based fertilizer application. Nitrate–nitrogen (NO<sub<3</sub<–N) contributed to most N uptake during both seasons at both locations. The N losses from the soil at the medium rainfall site (3.5–20.5 kg ha<sup<−1</sup<) were mainly attributed to NH<sub<4</sub<–N volatilization (N<sub<v</sub<) and NO<sub<3</sub<–N leaching (N<sub<L</sub<) below the crop root zone. Water productivity (8–40 kg ha<sup<−1</sup< mm<sup<−1</sup<) and N use efficiency (31–41 kg kg<sup<−1</sup<) showed immense variability induced by climate, water availability, and N dynamics in the soil. These results suggest that combining water balance and N modeling can help manage N applications to optimize wheat production and minimize N losses in rainfed agriculture. wheat rainfed water balance nitrogen uptake water productivity nitrogen use efficiency Environmental effects of industries and plants Renewable energy sources Environmental sciences Jirka Šimůnek verfasserin aut Paul Petrie verfasserin aut Tim Pitt verfasserin aut Vilim Filipović verfasserin aut In Sustainability MDPI AG, 2009 15(2023), 13370, p 13370 (DE-627)610604120 (DE-600)2518383-7 20711050 nnns volume:15 year:2023 number:13370, p 13370 https://doi.org/10.3390/su151813370 kostenfrei https://doaj.org/article/4729835b0b7e4e6099f4f93a970946a2 kostenfrei https://www.mdpi.com/2071-1050/15/18/13370 kostenfrei https://doaj.org/toc/2071-1050 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 13370, p 13370 |
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10.3390/su151813370 doi (DE-627)DOAJ093271026 (DE-599)DOAJ4729835b0b7e4e6099f4f93a970946a2 DE-627 ger DE-627 rakwb eng TD194-195 TJ807-830 GE1-350 Vinod Phogat verfasserin aut Sustainability of a Rainfed Wheat Production System in Relation to Water and Nitrogen Dynamics in the Soil in the Eyre Peninsula, South Australia 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Rainfed wheat production systems are usually characterized by low-fertility soils and frequent droughts, creating an unfavorable environment for sustainable crop production. In this study, we used a processed-based biophysical numerical model to evaluate the water balance and nitrogen (N) dynamics in soils under rainfed wheat cultivation at low (219 mm, Pygery) and medium rainfall (392 mm, Yeelanna) sites in south Australia over the two seasons. Estimated evapotranspiration components and N partitioning data were used to calibrate and validate the model and to compute wheat’s water and N use efficiency. There was a large disparity in the estimated water balance components at the two sites. Plant water uptake accounted for 40–50% of rainfall, more at the low rainfall site. In contrast, leaching losses of up to 25% of seasonal rainfall at the medium rainfall site (Yeelanna) indicate a significant amount of water evading the root zone. The model-predicted N partitioning revealed that ammonia–nitrogen (NH<sub<4</sub<–N) contributed little to plant N nutrition, and its concentration in the soil remained below 2 ppm throughout the crop season except immediately after the NH<sub<4</sub<–N-based fertilizer application. Nitrate–nitrogen (NO<sub<3</sub<–N) contributed to most N uptake during both seasons at both locations. The N losses from the soil at the medium rainfall site (3.5–20.5 kg ha<sup<−1</sup<) were mainly attributed to NH<sub<4</sub<–N volatilization (N<sub<v</sub<) and NO<sub<3</sub<–N leaching (N<sub<L</sub<) below the crop root zone. Water productivity (8–40 kg ha<sup<−1</sup< mm<sup<−1</sup<) and N use efficiency (31–41 kg kg<sup<−1</sup<) showed immense variability induced by climate, water availability, and N dynamics in the soil. These results suggest that combining water balance and N modeling can help manage N applications to optimize wheat production and minimize N losses in rainfed agriculture. wheat rainfed water balance nitrogen uptake water productivity nitrogen use efficiency Environmental effects of industries and plants Renewable energy sources Environmental sciences Jirka Šimůnek verfasserin aut Paul Petrie verfasserin aut Tim Pitt verfasserin aut Vilim Filipović verfasserin aut In Sustainability MDPI AG, 2009 15(2023), 13370, p 13370 (DE-627)610604120 (DE-600)2518383-7 20711050 nnns volume:15 year:2023 number:13370, p 13370 https://doi.org/10.3390/su151813370 kostenfrei https://doaj.org/article/4729835b0b7e4e6099f4f93a970946a2 kostenfrei https://www.mdpi.com/2071-1050/15/18/13370 kostenfrei https://doaj.org/toc/2071-1050 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 13370, p 13370 |
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Sustainability of a Rainfed Wheat Production System in Relation to Water and Nitrogen Dynamics in the Soil in the Eyre Peninsula, South Australia |
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Rainfed wheat production systems are usually characterized by low-fertility soils and frequent droughts, creating an unfavorable environment for sustainable crop production. In this study, we used a processed-based biophysical numerical model to evaluate the water balance and nitrogen (N) dynamics in soils under rainfed wheat cultivation at low (219 mm, Pygery) and medium rainfall (392 mm, Yeelanna) sites in south Australia over the two seasons. Estimated evapotranspiration components and N partitioning data were used to calibrate and validate the model and to compute wheat’s water and N use efficiency. There was a large disparity in the estimated water balance components at the two sites. Plant water uptake accounted for 40–50% of rainfall, more at the low rainfall site. In contrast, leaching losses of up to 25% of seasonal rainfall at the medium rainfall site (Yeelanna) indicate a significant amount of water evading the root zone. The model-predicted N partitioning revealed that ammonia–nitrogen (NH<sub<4</sub<–N) contributed little to plant N nutrition, and its concentration in the soil remained below 2 ppm throughout the crop season except immediately after the NH<sub<4</sub<–N-based fertilizer application. Nitrate–nitrogen (NO<sub<3</sub<–N) contributed to most N uptake during both seasons at both locations. The N losses from the soil at the medium rainfall site (3.5–20.5 kg ha<sup<−1</sup<) were mainly attributed to NH<sub<4</sub<–N volatilization (N<sub<v</sub<) and NO<sub<3</sub<–N leaching (N<sub<L</sub<) below the crop root zone. Water productivity (8–40 kg ha<sup<−1</sup< mm<sup<−1</sup<) and N use efficiency (31–41 kg kg<sup<−1</sup<) showed immense variability induced by climate, water availability, and N dynamics in the soil. These results suggest that combining water balance and N modeling can help manage N applications to optimize wheat production and minimize N losses in rainfed agriculture. |
abstractGer |
Rainfed wheat production systems are usually characterized by low-fertility soils and frequent droughts, creating an unfavorable environment for sustainable crop production. In this study, we used a processed-based biophysical numerical model to evaluate the water balance and nitrogen (N) dynamics in soils under rainfed wheat cultivation at low (219 mm, Pygery) and medium rainfall (392 mm, Yeelanna) sites in south Australia over the two seasons. Estimated evapotranspiration components and N partitioning data were used to calibrate and validate the model and to compute wheat’s water and N use efficiency. There was a large disparity in the estimated water balance components at the two sites. Plant water uptake accounted for 40–50% of rainfall, more at the low rainfall site. In contrast, leaching losses of up to 25% of seasonal rainfall at the medium rainfall site (Yeelanna) indicate a significant amount of water evading the root zone. The model-predicted N partitioning revealed that ammonia–nitrogen (NH<sub<4</sub<–N) contributed little to plant N nutrition, and its concentration in the soil remained below 2 ppm throughout the crop season except immediately after the NH<sub<4</sub<–N-based fertilizer application. Nitrate–nitrogen (NO<sub<3</sub<–N) contributed to most N uptake during both seasons at both locations. The N losses from the soil at the medium rainfall site (3.5–20.5 kg ha<sup<−1</sup<) were mainly attributed to NH<sub<4</sub<–N volatilization (N<sub<v</sub<) and NO<sub<3</sub<–N leaching (N<sub<L</sub<) below the crop root zone. Water productivity (8–40 kg ha<sup<−1</sup< mm<sup<−1</sup<) and N use efficiency (31–41 kg kg<sup<−1</sup<) showed immense variability induced by climate, water availability, and N dynamics in the soil. These results suggest that combining water balance and N modeling can help manage N applications to optimize wheat production and minimize N losses in rainfed agriculture. |
abstract_unstemmed |
Rainfed wheat production systems are usually characterized by low-fertility soils and frequent droughts, creating an unfavorable environment for sustainable crop production. In this study, we used a processed-based biophysical numerical model to evaluate the water balance and nitrogen (N) dynamics in soils under rainfed wheat cultivation at low (219 mm, Pygery) and medium rainfall (392 mm, Yeelanna) sites in south Australia over the two seasons. Estimated evapotranspiration components and N partitioning data were used to calibrate and validate the model and to compute wheat’s water and N use efficiency. There was a large disparity in the estimated water balance components at the two sites. Plant water uptake accounted for 40–50% of rainfall, more at the low rainfall site. In contrast, leaching losses of up to 25% of seasonal rainfall at the medium rainfall site (Yeelanna) indicate a significant amount of water evading the root zone. The model-predicted N partitioning revealed that ammonia–nitrogen (NH<sub<4</sub<–N) contributed little to plant N nutrition, and its concentration in the soil remained below 2 ppm throughout the crop season except immediately after the NH<sub<4</sub<–N-based fertilizer application. Nitrate–nitrogen (NO<sub<3</sub<–N) contributed to most N uptake during both seasons at both locations. The N losses from the soil at the medium rainfall site (3.5–20.5 kg ha<sup<−1</sup<) were mainly attributed to NH<sub<4</sub<–N volatilization (N<sub<v</sub<) and NO<sub<3</sub<–N leaching (N<sub<L</sub<) below the crop root zone. Water productivity (8–40 kg ha<sup<−1</sup< mm<sup<−1</sup<) and N use efficiency (31–41 kg kg<sup<−1</sup<) showed immense variability induced by climate, water availability, and N dynamics in the soil. These results suggest that combining water balance and N modeling can help manage N applications to optimize wheat production and minimize N losses in rainfed agriculture. |
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container_issue |
13370, p 13370 |
title_short |
Sustainability of a Rainfed Wheat Production System in Relation to Water and Nitrogen Dynamics in the Soil in the Eyre Peninsula, South Australia |
url |
https://doi.org/10.3390/su151813370 https://doaj.org/article/4729835b0b7e4e6099f4f93a970946a2 https://www.mdpi.com/2071-1050/15/18/13370 https://doaj.org/toc/2071-1050 |
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Jirka Šimůnek Paul Petrie Tim Pitt Vilim Filipović |
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