SA veldfires contribute little to global warming
The effects of veldfires on the atmosphere and climate aren't straightforward - and a recent study of South Africa's veldfires yields some surprising results, writes.
Quantifying what nature gives for free
The World Bank has launched a new programme that aims to put a value on a country's ecosystems in the same way GDP is measured.
Are disease-resistant sheep less fertile?
Researchers have discovered an odd relationship between disease-resistance and fertility in Soay sheep. Roelof Bezuidenhout reports.
Getting the most out of your glyphosate product
Glyphosate-based broad-spectrum systemic herbicides are invaluable in most farming enterprises. But follow simple guidelines to avoid sub-optimal and economically wasteful results. Lloyd Phillips reports.
New environmentally friendly ‘styrofoam’
An ultra-light biodegradable styrofoam substitute may put an end to plastic pollution and overburdened landfills, writes Alan Harman.
Healthy monola set to be a winner
With consumers growing ever more health-conscious and the food industry under pressure to get rid of "bad" cooking oils, this new speciality canola couldn't have been launched at a better...
New colour solution for table grapes
Achieving good colouration in table grapes is an important marketing tool, but very warm temperatures in some of South Africa's table-grape-growing regions hamper this. Research presented at the International Table...
Is this the first blackgora?
While mohair purists advocate only pure white fibres, Roelof Bezuidenhout discovers a rare black specimen of fine quality.
Controlling bovine viral diarrhoea
Effectively controlling Bovine viral diarrhoea virus (BVDV) in cattle herds takes an integrated farm biosecurity system. This includes keeping farm fences in good condition and limiting the movement of unauthorised...
Evergreen agriculture is the future of farming
Scientists have called for radical transformation of the agricultural sector to cope with climate change and food security, writes Alan Harman.
Sun spots behind droughts?
Arguments about CLIMATE change have been dominated by the role greenhouse gas emissions play, but the old sunspot theory is regaining lost ground. Will Alexander, a retired professor from the...
Keep your ammo away from ammonia
Storing household cleaning agents incorrectly can cause defects in ammunition, reports Roelof Bezuidenhout. Issue date:
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