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   Inhibering van urease-aktiwiteite in sekere gronde van die sentrale besproeiingsgebiede in Suid-Afrika

   Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: F. P.J. Thormählen --- Departement van Grondkunde, Republiek van Suid-Afrika C.C. den Preez --- Departement van Grondkunde, Republiek van Suid-Afrika

   Die verloop van hidrolise is in vier gronde met verskillende urease-aktiwiteite, afkomstig van die sentrale besproeiingsgebiede, gemonitor na toediening van ureum teen die ekwivalent van 100 kg N ha−1. Gelyktydig met die toediening van ureum is sewe belowende inhibeerders ook...

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2. 

   Effect of conventional and organic orchard floor management practices on enzyme activities and microbial counts in a ‘Cripp's Pink’/M7 apple orchard

   Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: André H Meyer --- Agricultural Research Council–Infruitec-Nietvoorbij, South Africa John Wooldridge --- Agricultural Research Council–Infruitec-Nietvoorbij, South Africa Joanna F Dames --- Department of Biochemistry and Microbiology, South Africa

   Organic (ORG) production practices are increasingly being used in South African apple orchards. Whether ORG orchard floor management practices differ in their effects on soil enzyme activities and microbial populations from conventional (CON) practices have not been adequately investigated, particularly...

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