Effects of tillage, organic resources and nitrogen fertiliser on soil carbon dynamics and crop nitrogen uptake in semi-arid West Africa

E. Ouédraogo, A. Mando, L. Stroosnijder

Research output: Contribution to journalArticleAcademicpeer-review

66 Citations (Scopus)

Abstract

Tillage, organic resources and fertiliser effects on soil carbon (C) dynamics were investigated in 2000 and 2001 in Burkina Faso (West Africa). A split plot design with four replications was laid-out on a loamy-sand Ferric Lixisol with till and no-till as main treatments and fertiliser types as sub-treatments. Soil was fractionated physically into coarse (0.250-2 mm), medium (0.053-0.250 mm) and fine fractions (<0.053 mm). Particulate organic carbon (POC) accounted for 47-53% of total soil organic carbon (SOC) concentration and particulate organic nitrogen (PON) for 30-37% of total soil nitrogen concentration. The POC decreased from 53% of total SOC in 2000 to 47% of total SOC in 2001. Tillage increased the contribution of POC to SOC. No-till led to the lowest loss in SOC in the fine fraction compared to tilled plots. Well-decomposed compost and single urea application in tilled as well as in no-till plots induced loss in POC. Crop N uptake was enhanced in tilled plots and may be up to 226 kg N ha-1 against a maximum of 146 kg N ha-1 in no-till plots. Combining crop residues and urea enhanced incorporation of new organic matter in the coarse fraction and the reduction of soil carbon mineralisation from the fine fraction. The PON and crop N uptake are strongly correlated in both till and no-till plots. Mineral-associated N is more correlated to N uptake by crop in tilled than in no-till plots. Combining recalcitrant organic resources and nitrogen fertiliser is the best option for sustaining crop production and reducing soil carbon decline in the more stabilised soil fraction in the semi-arid West Africa
Original languageEnglish
Pages (from-to)57-67
JournalSoil & Tillage Research
Volume91
Issue number1-2
DOIs
Publication statusPublished - 2006

Fingerprint

soil carbon
Western Africa
tillage
no-tillage
soil organic carbon
nitrogen fertilizers
fertilizer
particulate organic carbon
crop
carbon
nitrogen
organic carbon
resource
crops
soil
particulate organic nitrogen
particulates
urea
soil separates
fertilizers

Keywords

  • matter fractions
  • crusted soil
  • land-use
  • particulate
  • phosphorus
  • rehabilitation
  • management
  • quality
  • systems
  • mulch

Cite this

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title = "Effects of tillage, organic resources and nitrogen fertiliser on soil carbon dynamics and crop nitrogen uptake in semi-arid West Africa",
abstract = "Tillage, organic resources and fertiliser effects on soil carbon (C) dynamics were investigated in 2000 and 2001 in Burkina Faso (West Africa). A split plot design with four replications was laid-out on a loamy-sand Ferric Lixisol with till and no-till as main treatments and fertiliser types as sub-treatments. Soil was fractionated physically into coarse (0.250-2 mm), medium (0.053-0.250 mm) and fine fractions (<0.053 mm). Particulate organic carbon (POC) accounted for 47-53{\%} of total soil organic carbon (SOC) concentration and particulate organic nitrogen (PON) for 30-37{\%} of total soil nitrogen concentration. The POC decreased from 53{\%} of total SOC in 2000 to 47{\%} of total SOC in 2001. Tillage increased the contribution of POC to SOC. No-till led to the lowest loss in SOC in the fine fraction compared to tilled plots. Well-decomposed compost and single urea application in tilled as well as in no-till plots induced loss in POC. Crop N uptake was enhanced in tilled plots and may be up to 226 kg N ha-1 against a maximum of 146 kg N ha-1 in no-till plots. Combining crop residues and urea enhanced incorporation of new organic matter in the coarse fraction and the reduction of soil carbon mineralisation from the fine fraction. The PON and crop N uptake are strongly correlated in both till and no-till plots. Mineral-associated N is more correlated to N uptake by crop in tilled than in no-till plots. Combining recalcitrant organic resources and nitrogen fertiliser is the best option for sustaining crop production and reducing soil carbon decline in the more stabilised soil fraction in the semi-arid West Africa",
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author = "E. Ou{\'e}draogo and A. Mando and L. Stroosnijder",
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language = "English",
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pages = "57--67",
journal = "Soil & Tillage Research",
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Effects of tillage, organic resources and nitrogen fertiliser on soil carbon dynamics and crop nitrogen uptake in semi-arid West Africa. / Ouédraogo, E.; Mando, A.; Stroosnijder, L.

In: Soil & Tillage Research, Vol. 91, No. 1-2, 2006, p. 57-67.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Effects of tillage, organic resources and nitrogen fertiliser on soil carbon dynamics and crop nitrogen uptake in semi-arid West Africa

AU - Ouédraogo, E.

AU - Mando, A.

AU - Stroosnijder, L.

PY - 2006

Y1 - 2006

N2 - Tillage, organic resources and fertiliser effects on soil carbon (C) dynamics were investigated in 2000 and 2001 in Burkina Faso (West Africa). A split plot design with four replications was laid-out on a loamy-sand Ferric Lixisol with till and no-till as main treatments and fertiliser types as sub-treatments. Soil was fractionated physically into coarse (0.250-2 mm), medium (0.053-0.250 mm) and fine fractions (<0.053 mm). Particulate organic carbon (POC) accounted for 47-53% of total soil organic carbon (SOC) concentration and particulate organic nitrogen (PON) for 30-37% of total soil nitrogen concentration. The POC decreased from 53% of total SOC in 2000 to 47% of total SOC in 2001. Tillage increased the contribution of POC to SOC. No-till led to the lowest loss in SOC in the fine fraction compared to tilled plots. Well-decomposed compost and single urea application in tilled as well as in no-till plots induced loss in POC. Crop N uptake was enhanced in tilled plots and may be up to 226 kg N ha-1 against a maximum of 146 kg N ha-1 in no-till plots. Combining crop residues and urea enhanced incorporation of new organic matter in the coarse fraction and the reduction of soil carbon mineralisation from the fine fraction. The PON and crop N uptake are strongly correlated in both till and no-till plots. Mineral-associated N is more correlated to N uptake by crop in tilled than in no-till plots. Combining recalcitrant organic resources and nitrogen fertiliser is the best option for sustaining crop production and reducing soil carbon decline in the more stabilised soil fraction in the semi-arid West Africa

AB - Tillage, organic resources and fertiliser effects on soil carbon (C) dynamics were investigated in 2000 and 2001 in Burkina Faso (West Africa). A split plot design with four replications was laid-out on a loamy-sand Ferric Lixisol with till and no-till as main treatments and fertiliser types as sub-treatments. Soil was fractionated physically into coarse (0.250-2 mm), medium (0.053-0.250 mm) and fine fractions (<0.053 mm). Particulate organic carbon (POC) accounted for 47-53% of total soil organic carbon (SOC) concentration and particulate organic nitrogen (PON) for 30-37% of total soil nitrogen concentration. The POC decreased from 53% of total SOC in 2000 to 47% of total SOC in 2001. Tillage increased the contribution of POC to SOC. No-till led to the lowest loss in SOC in the fine fraction compared to tilled plots. Well-decomposed compost and single urea application in tilled as well as in no-till plots induced loss in POC. Crop N uptake was enhanced in tilled plots and may be up to 226 kg N ha-1 against a maximum of 146 kg N ha-1 in no-till plots. Combining crop residues and urea enhanced incorporation of new organic matter in the coarse fraction and the reduction of soil carbon mineralisation from the fine fraction. The PON and crop N uptake are strongly correlated in both till and no-till plots. Mineral-associated N is more correlated to N uptake by crop in tilled than in no-till plots. Combining recalcitrant organic resources and nitrogen fertiliser is the best option for sustaining crop production and reducing soil carbon decline in the more stabilised soil fraction in the semi-arid West Africa

KW - matter fractions

KW - crusted soil

KW - land-use

KW - particulate

KW - phosphorus

KW - rehabilitation

KW - management

KW - quality

KW - systems

KW - mulch

U2 - 10.1016/j.still.2005.11.004

DO - 10.1016/j.still.2005.11.004

M3 - Article

VL - 91

SP - 57

EP - 67

JO - Soil & Tillage Research

JF - Soil & Tillage Research

SN - 0167-1987

IS - 1-2

ER -