Temporal and spatial distributions of nitrate-nitrogen in two furrow-irrigated semiarid soils amended for sludge and fertilizer

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Abstract

A statistical comparison of data collected from two cotton production fields with a history of either commercial fertilizer or sludge amendments showed significantly different nitrate-nitrogen (N) concentrations in time and space. The sludge-amended field had high nitrate concentrations in the root zone (1.5 m) throughout the season. Whereas, the fertilized field showed low nitrate-N concentrations during the same period. Both fields showed significant increases in nitrate-N following pre-plant irrigation events, and significant decreases of nitrate-N in the root zone during the growing season. Following harvest, the sludge-amended field had very large reserve of nitrate-N in the profile. The spatial variabilities, as determined by the % coefficients of variations (CVs) of eight cores per sampling event, of nitrate-N distributions where large in both fields, 69% and 90% for the sludge and fertilizer field, respectively. The estimated nitrate-N leaching losses were much higher in the sludge-amended than the fertilized field. Significant leaching losses in the sludge-amended field were likely the result of year-to-year sludge residue accumulations that mineralize and release nitrate-N in the zone of incorporation (0-30 cm).

Original languageEnglish (US)
Pages (from-to)393-407
Number of pages15
JournalCommunications in Soil Science and Plant Analysis
Volume29
Issue number3-4
StatePublished - 1998

Fingerprint

semiarid soils
irrigated soils
nitrate nitrogen
Fertilizers
furrows
sludge
temporal distribution
Nitrates
Spatial distribution
Nitrogen
fertilizer
spatial distribution
fertilizers
nitrate
Soils
nitrates
nitrogen
soil
Leaching
rhizosphere

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Plant Science
  • Soil Science
  • Analytical Chemistry

Cite this

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title = "Temporal and spatial distributions of nitrate-nitrogen in two furrow-irrigated semiarid soils amended for sludge and fertilizer",
abstract = "A statistical comparison of data collected from two cotton production fields with a history of either commercial fertilizer or sludge amendments showed significantly different nitrate-nitrogen (N) concentrations in time and space. The sludge-amended field had high nitrate concentrations in the root zone (1.5 m) throughout the season. Whereas, the fertilized field showed low nitrate-N concentrations during the same period. Both fields showed significant increases in nitrate-N following pre-plant irrigation events, and significant decreases of nitrate-N in the root zone during the growing season. Following harvest, the sludge-amended field had very large reserve of nitrate-N in the profile. The spatial variabilities, as determined by the {\%} coefficients of variations (CVs) of eight cores per sampling event, of nitrate-N distributions where large in both fields, 69{\%} and 90{\%} for the sludge and fertilizer field, respectively. The estimated nitrate-N leaching losses were much higher in the sludge-amended than the fertilized field. Significant leaching losses in the sludge-amended field were likely the result of year-to-year sludge residue accumulations that mineralize and release nitrate-N in the zone of incorporation (0-30 cm).",
author = "Artiola, {Janick F}",
year = "1998",
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volume = "29",
pages = "393--407",
journal = "Communications in Soil Science and Plant Analysis",
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}

TY - JOUR

T1 - Temporal and spatial distributions of nitrate-nitrogen in two furrow-irrigated semiarid soils amended for sludge and fertilizer

AU - Artiola, Janick F

PY - 1998

Y1 - 1998

N2 - A statistical comparison of data collected from two cotton production fields with a history of either commercial fertilizer or sludge amendments showed significantly different nitrate-nitrogen (N) concentrations in time and space. The sludge-amended field had high nitrate concentrations in the root zone (1.5 m) throughout the season. Whereas, the fertilized field showed low nitrate-N concentrations during the same period. Both fields showed significant increases in nitrate-N following pre-plant irrigation events, and significant decreases of nitrate-N in the root zone during the growing season. Following harvest, the sludge-amended field had very large reserve of nitrate-N in the profile. The spatial variabilities, as determined by the % coefficients of variations (CVs) of eight cores per sampling event, of nitrate-N distributions where large in both fields, 69% and 90% for the sludge and fertilizer field, respectively. The estimated nitrate-N leaching losses were much higher in the sludge-amended than the fertilized field. Significant leaching losses in the sludge-amended field were likely the result of year-to-year sludge residue accumulations that mineralize and release nitrate-N in the zone of incorporation (0-30 cm).

AB - A statistical comparison of data collected from two cotton production fields with a history of either commercial fertilizer or sludge amendments showed significantly different nitrate-nitrogen (N) concentrations in time and space. The sludge-amended field had high nitrate concentrations in the root zone (1.5 m) throughout the season. Whereas, the fertilized field showed low nitrate-N concentrations during the same period. Both fields showed significant increases in nitrate-N following pre-plant irrigation events, and significant decreases of nitrate-N in the root zone during the growing season. Following harvest, the sludge-amended field had very large reserve of nitrate-N in the profile. The spatial variabilities, as determined by the % coefficients of variations (CVs) of eight cores per sampling event, of nitrate-N distributions where large in both fields, 69% and 90% for the sludge and fertilizer field, respectively. The estimated nitrate-N leaching losses were much higher in the sludge-amended than the fertilized field. Significant leaching losses in the sludge-amended field were likely the result of year-to-year sludge residue accumulations that mineralize and release nitrate-N in the zone of incorporation (0-30 cm).

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