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Concentrations of available phosphorus (PE-R), and sulphate sulphur (S-SO₄²⁻) as well as activities of alkaline (AlP) and acid phosphatase (AcP), and arylsulphatase were assayed in a Luvisol fertilized with various doses (0, 20, 40, 60, 80 t·ha⁻¹) of farmyard manure (factor I) and nitrogen in mineral form (0, 45, 90, 135 kg ha⁻¹, factor II). PE-Rand S-SO₄²⁻ concentrations were significantly affected...
W pracy przedstawiono wyniki pozwalające na stwierdzenie, że zastosowany w doświadczeniu obornik w istotny sposób wpłynął na aktywność dehydrogenaz oraz katalazy oznaczonych w rizosferze pszenicy ozimej. Wraz ze wzrostem zaaplikowanych dawek nawozu naturalnego wzrastała aktywność badanego enzymu, osiągając najwyższą aktywność przy dawce 80 t∙ha-1, zarówno w doświadczeniu ze zmianowaniem zubożającym...
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