Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 1985-1989  (2)
  • 1905-1909
  • 1989  (2)
  • Allelopathy  (1)
  • consensus  (1)
  • Analytical Chemistry and Spectroscopy
  • General Chemistry
  • allelochemical
Material
Years
  • 1985-1989  (2)
  • 1905-1909
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of chemical ecology 15 (1989), S. 951-960 
    ISSN: 1573-1561
    Keywords: Allelopathy ; grain sorghum ; Sorghum bicolor ; weed inhibition ; weed management
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Three years of field data in northeastern Nebraska demonstrate that a grain sorghum crop reduces weediness in the following crop year. Weed growth was consistently lower in sorghum areas the year after strip-cropping fields with sequences of four-row bands of grain sorghum, soybeans, and corn. Percentage weed cover was significantly lower early in the year, and midsummer weed biomass was well below that found after corn and soybeans. Weed biomass in June and July following corn was two to four times that of grain sorghum strips. Inhibitory effects of grain sorghum were primarily on broadleaf weeds, often showing no action on grass weeds. No obvious differences were noted in the weed species present after the three crops. Allelopathy provides a logical explanation for the sorghum-mediated weed inhibition found in this study. The data have implications for weed management strategies in agriculture.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Social justice research 3 (1989), S. 201-215 
    ISSN: 1573-6725
    Keywords: distributive justice ; consensus ; vignette study
    Source: Springer Online Journal Archives 1860-2000
    Topics: Political Science , Sociology
    Notes: Abstract This article deals with consensus on norms on how incomes in a society ought to be distributed. Functionalist theories presume consensus between almost all members of a society. Marxist theories presume at least some dissension, e.g., persons in unfavorable positions will support the achievement principle to a lesser extent and the equality and need principle to a larger measure. In 1987, a vignette study was conducted among a sample of 795 individuals representative of the Dutch population between the ages of 18 and 70. The respondents were presented with a random sample of 15 vignettes and requested to assign a fair income to the described household. A total of 11,394 fair incomes were assigned to the virgnettes. In the analysis the respondents were grouped on value patterns and income position. There was consensus on the main achievement attribute “occupational prestige” in assigning fair incomes. There was also some dissension discernible between different groups. However, neither of the theories was fully corroborated.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...