Search Results - Claassens, A.S. (Andries Stephanus), 1943-

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  1. Direct and residual effects of organic and inorganic fertilizers on soil chemical properties, microbial components and maize yield under long-term crop rotation

    Published 2013
    Other Authors: “…Claassens, A.S. (Andries Stephanus), 1943-…”
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    Thesis
  2. Nitrogen transformations in South African soils

    Published 2013
    Other Authors: “…Claassens, A.S. (Andries Stephanus), 1943-…”
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    Thesis
  3. Comparing plant yield and composition with soil properties using classical and geostatistical techniques

    Published 2013
    Other Authors: “…Claassens, A.S. (Andries Stephanus), 1943-…”
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    Thesis
  4. Die invloed van grondverdigting op die fosfaat opname deur tabak (Afrikaans)

    Published 2013
    Other Authors: “…Claassens, A.S. (Andries Stephanus), 1943-…”
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    Thesis
  5. Nitrogen dynamics in sewage sludge and commercial fertilizer enriched soils

    Published 2013
    Other Authors: “…Claassens, A.S. (Andries Stephanus), 1943-…”
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  6. Evaluation of erosion models and field assessment methods as tools for monitoring and evaluation of soil erosion in landcare

    Published 2013
    Other Authors: “…Claassens, A.S. (Andries Stephanus), 1943-…”
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    Thesis
  7. Characterizing phosphate desorption kinetics from soil : an approach to predicting plant available phosphorus

    Published 2013
    Other Authors: “…Claassens, A.S. (Andries Stephanus), 1943-…”
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    Thesis
  8. Changes in the soil volume exploited by roots as influenced by differential treatments

    Published 2013
    Other Authors: “…Claassens, A.S. (Andries Stephanus), 1943-…”
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    Thesis
  9. Evaluation of soil erosion in the Harerge region of Ethiopia using soil loss models, rainfall simulation and field trials

    Published 2013
    Other Authors: “…Claassens, A.S. (Andries Stephanus), 1943-…”
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    Thesis
  10. Heavy metal extractability and plant bioavailability from two sacrificial biosolids soils as influenced by intensive liming

    Published 2013
    Other Authors: “…Claassens, A.S. (Andries Stephanus), 1943-…”
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  11. The dynamics of phosphorus extractability, adsorption, and desorption rates as influenced by phosphorus applications and incubation times

    Published 2013
    Other Authors: “…Claassens, A.S. (Andries Stephanus), 1943-…”
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  12. Slags as agricultural limes : reactivity and heavy metal and phosphorus bio-availability

    Published 2013
    Other Authors: “…Claassens, A.S. (Andries Stephanus), 1943-…”
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    Thesis