Yields and leaf elemental composition of cotton grown on sludge-amended soil

J. E. Watson, Ian L Pepper, M. Unger, W. H. Fuller

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A 3-yr field study was conducted to determine the effects of land application of anaerobically digested, air-dried sewage sludge on growth of upland cotton (Gossypium hirsutum L.). Cotton lint yields obtained with sludge rates from 20 to 80 Mg/ha were comparable with those obtained by area farmers employing conventional fertilizer practices. Rates of 80 Mg/ha had no significant effect on lint yields, although lint/seed ratios tended to decrease with increased sludge rate for all years. After 3 yr of sludge application, the leaf and seed concentrations of Cd, Zn, Ni, and Cu were not significantly different from those on the fertilized check plots. Leaf concentrations of Cd were higher than seed concentrations, but the reverse trend was true for Zn, indicating that Zn may not be directly useable as a model for Cd behavior in cotton.

Original languageEnglish (US)
Pages (from-to)174-177
Number of pages4
JournalJournal of Environmental Quality
Volume14
Issue number2
StatePublished - 1985

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Cotton
Seed
cotton
sludge
seed
Soils
Chemical analysis
soil
Fertilizers
Sewage sludge
fertilizer
air
Air
rate
effect
land
field study
sewage sludge
trend

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry

Cite this

Yields and leaf elemental composition of cotton grown on sludge-amended soil. / Watson, J. E.; Pepper, Ian L; Unger, M.; Fuller, W. H.

In: Journal of Environmental Quality, Vol. 14, No. 2, 1985, p. 174-177.

Research output: Contribution to journalArticle

Watson, J. E. ; Pepper, Ian L ; Unger, M. ; Fuller, W. H. / Yields and leaf elemental composition of cotton grown on sludge-amended soil. In: Journal of Environmental Quality. 1985 ; Vol. 14, No. 2. pp. 174-177.
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