Search Results - "Swanepoel, A"

Plant Population and Row Spacing Affects Growth and Yield of Rainfed Maize in Semi-arid Environments by Haarhoff, Stephanus J., Swanepoel, Pieter A.

“…Increased tolerance to competition for soil resources of modern maize ( Zea mays L.) hybrids increases soil resource use efficiency and yield. Yet little…”
Get full text

Role of the Lethabo Weir in altering the phytoplankton community structure of the Vaal River, South Africa by Janse van Vuuren, S, Swanepoel, A

“…During 2012, aerial photographs of the Vaal River, South Africa, showed differences in water colour on either side of the Lethabo Weir. Water upstream of the…”
Get full text

Temporal Dynamics of Plasma Catecholamines, Metabolic and Immune Markers, and the Corticosterone:DHEA Ratio in Farmed Crocodiles before and after an Acute Stressor by Swanepoel, Andre A, Truter, Christoff, Viljoen, Francois P, Myburgh, Jan G, Harvey, Brian H

“…Commercial crocodilian farms face significant economic and livestock losses attributed to stress, which may be linked to their adopted husbandry practices. The…”
Get full text

The impact of zeta potential changes on Ceratium hirundinella cell removal and the ability of cells to restore its natural surface charge during drinking water purification by Ewerts, H, Barnard, S, Swanepoel, A

“…Unit processes of a conventional water purification facility are designed to remove suspended material from source water (both inorganic and organic…”
Get full text

The occurrence and removal of algae (including cyanobacteria) and their related organic compounds from source water in Vaalkop Dam with conventional and advanced drinking water treatment processes by Du Preez, H.H., Swanepoel, A., Cloete, N.

“…Cyanobacterial bloom formation in freshwaters, such as rivers, lakes and dams, is known to occur throughout the world. The Vaalkop Dam, which serves as source…”
Get full text

Evaluation of models generated via hybrid evolutionary algorithms for the prediction of Microcystis concentrations in the Vaal Dam, South Africa by Barnard, S., Recknagel, F., Cao, H., Swanepoel, A.

“…Cyanobacteria are responsible for many problems in drinking water treatment works (DWTW) because of their ability to produce cyanotoxins that potentially can…”
Get full text

Grazing under Irrigation Affects N2O-Emissions Substantially in South Africa by Smit, Hendrik P. J., Reinsch, Thorsten, Swanepoel, Pieter A., Kluß, Christof, Taube, Friedhelm

“…Fertilized agricultural soils serve as a primary source of anthropogenic N2O emissions. In South Africa, there is a paucity of data on N2O emissions from…”
Get full text

Scanning electron microscopy analysis of erythrocytes in thromboembolic ischemic stroke by SWANEPOEL, A. C., PRETORIUS, E.

“…Summary Introduction:  Erythrocytes play an important role in hemostasis and disease conditions. During ischemic stroke, erythrocytes undergo oxidative and…”
Get full text

Laboratory-scale simulations with hydrated lime and organic polymer to evaluate the effect of pre-chlorination on motile Ceratium hirundinella cells during conventional water treatment by Barnard, S., Swanepoel, A., Ewerts, H.

“…Algal genera such as Carteria, Chlamydomonas, Chlorogonium, Cryptomonas, Ceratium, Peridinium and Euglena are motile and may disrupt unit processes and cause…”
Get full text

Environmental Impact of Rotationally Grazed Pastures at Different Management Intensities in South Africa by Smit, Hendrik P J, Reinsch, Thorsten, Swanepoel, Pieter A, Loges, Ralf, Kluß, Christof, Taube, Friedhelm

“…Nitrogen fertilization, irrigation and concentrate feeding are important factors in rotational pasture management for dairy farms in South Africa. The extent…”
Get full text

Biostimulant effects on the herbage yield and nutritive composition of a mixed ryegrass-clover pasture by de Beer, J, Swanepoel, PA, van Zyl, JHC, Steyn, L

“…Dairy producers are continuously searching for environmentally friendly and economically sustainable alternatives to increase pasture herbage yield and reduce…”
Get full text

Reformatoriese toetrede tot die derde golf van bydraes oor die Triniteit by Swanepoel, Cornelius A

“…A reformational entry into the third wave of contributions on the Trinity: There has been a so called renaissance in theological studies on the Trinity in the…”
Get full text

A carbon footprint assessment for pasture-based dairy farming systems in South Africa by Galloway, Craig, Swanepoel, Pieter A., Haarhoff, Stephanus J.

“…Environmental impact evaluation of intensive dairy farming systems has been of growing interest recently as agriculture has several negative influences on the…”
Get full text

Efficacy of conventional drinking water treatment processes in removing problem-causing phytoplankton and associated organic compounds by EWERTS, H, SWANEPOEL, A, DU PREEZ, H. H

Get full text

Physical quality of a podzolic soil following 19 years of irrigated minimum-till kikuyu-ryegrass pasture by Swanepoel, P.A., Botha, P.R., Preez, C.C. du, Snyman, H.A.

“…•Soil physical condition after conversion from virgin soil to pastures was examined.•Soil physical resistance increased after conversion.•Aggregate stability…”
Get full text

Can the presence of curved forms of the diatom Aulacoseira ambigua in the Nile (Egypt) and Vaal (South Africa) Rivers be ascribed to similar water quality conditions? by Janse van Vuuren, S, Saber, AA, Swanepoel, A, Cantonati, M

“…Spiral colonies of the diatom Aulacoseira ambigua were assigned the rank of forma (Aulacoseira ambigua f. japonica). This spiral-shaped, colonial, centric…”
Get full text

Position statement for adult and paediatric spirometry in South Africa: 2022 update by Maree, D M, Swanepoel, R A, Swart, F, Gray, D M, Allwood, B W, van Zyl-smit, R N, Koegelenberg, C F N

“…Spirometry is required as part of the comprehensive evaluation of both adult and paediatric individuals with suspected or confirmed respiratory diseases and…”
Get full text

Spatial relationships and movement patterns of the air cargo industry in airport regions by Van V. Coetzee, Petrus J., Swanepoel, Pieter A.

“…Background: During the past few years, with the increase in air traffic and the expansion of airports, very few industries had such a large spatial development…”
Get full text

Advancing carbon sequestration and nutrient management in the South African dairy industry for sustainable growth by Reinecke, Riana, Blignaut, James N., Meissner, Heinz H., Swanepoel, Pieter A.

“…The dairy industry in South Africa is currently grappling with significant challenges, including escalating costs and diminishing profit margins. However,…”
Get full text

In-field assessment of the variability in water and nutrient use efficiency among potato farmers in a semi-arid climate by Franke, A. C., Machakaire, A. T. B., Mukiibi, A., Kayes, M. J., Swanepoel, P. A., Steyn, J. M.

“…Precise water management is imperative for sustainable crop production under irrigation in semi-arid regions with increasingly variable rainfall. Water use…”
Get full text