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  • 1970-1974  (2)
  • Geography  (2)
Material
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  • 1970-1974  (2)
Year
Subjects(RVK)
  • Geography  (2)
RVK
  • 1
    Online Resource
    Online Resource
    Wiley ; 1974
    In:  Soil Science Society of America Journal Vol. 38, No. 4 ( 1974-07), p. 616-620
    In: Soil Science Society of America Journal, Wiley, Vol. 38, No. 4 ( 1974-07), p. 616-620
    Abstract: The response of soybeans ( Glycine max (L.) Merrill) to the direct and residual effect of liming in relation to soil acidity, Al and Mn toxicities and P availability was studied in five Oxisols of Southern Brazil under successive wheat ( Triticum aestivum L.)‐soybean cropping. Yield responses to liming were highly significant due to the high exchangeable Al and extractable Mn, the low pH, exchangeable Ca + Mg, and available P found in these soils. Optimum yields were obtained when liming adjusted Al from 0.1 to 0.5 meq/100g (1.5% Al saturation), soil pH from 5.2 to 5.7 and Ca + Mg from 5.7 to 8.5 meq/100g. Liming also increased root nodulation and reduced P fixation and Mn levels in the soil.
    Type of Medium: Online Resource
    ISSN: 0361-5995 , 1435-0661
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 1974
    detail.hit.zdb_id: 241415-6
    detail.hit.zdb_id: 2239747-4
    detail.hit.zdb_id: 196788-5
    detail.hit.zdb_id: 1481691-X
    SSG: 13
    SSG: 21
    Location Call Number Limitation Availability
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  • 2
    Online Resource
    Online Resource
    Wiley ; 1974
    In:  Soil Science Society of America Journal Vol. 38, No. 4 ( 1974-07), p. 644-652
    In: Soil Science Society of America Journal, Wiley, Vol. 38, No. 4 ( 1974-07), p. 644-652
    Abstract: Six deep, red, clayey, acid soils from the hot and humid tropics of Costa Rica, previously classified as “Latosols” were studied. Special attention was given to the diagnostic horizons and properties to elucidate the problems of classification, productivity, and management of tropical soils. Physical, chemical and mineralogical properties showed that these soils were as highly weathered as indicated by their morphological properties and other field observations. However, they were predominantly Ultisols and not Oxisols, as it is sometimes assumed, and they did not fully fit C. E. Kellogg's original definition of “Latosol.” Although physical properties were found to be adequate, chemical properties were indicative of poor soil productivity and difficult management.
    Type of Medium: Online Resource
    ISSN: 0361-5995 , 1435-0661
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 1974
    detail.hit.zdb_id: 241415-6
    detail.hit.zdb_id: 2239747-4
    detail.hit.zdb_id: 196788-5
    detail.hit.zdb_id: 1481691-X
    SSG: 13
    SSG: 21
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
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