Het jy geweet lusern, mielies en skape kan ook jou winste verhoog?
October 2015
PIETMAN BOTHA, SA Graan/Grain medewerker
Dit is algemeen bekend dat enige besigheid nie al sy eiers in een mandjie moet plaas nie. Dieselfde geld ook vir die graanprodusent. Die vraag is net: Waarin moet...
Growth expectations for the South African game ranching industry
October 2015
FLIPPIE CLOETE, Unit for Environmental Science and Management, North-West University
The tremendous growth and development of the game ranching industry is clearly visible throughout South Africa. Not only are fences and other supporting infrastructure...
Expanding livestock production to support feed grain demand over the next decade
October 2015
TRACY DAVIDS, Bureau for Food and Agricultural Policy
Meat consumption has globally expanded rapidly over the past decade, particularly in developing regions where rising income levels resulted in dynamic class mobility and improved living...
Die nadelige effek van hittestres op prestasie
October 2015
JAN DU PREEZ, spesialis in Veterinêre Volksgesondheid
In dié artikel word al die nadele van hittestres in besonderhede bespreek.
Hittestres wat die liggaamstemperatuur van die koei met 1°C tot 1,5°C verhoog, verleng die oestrussiklus (dit...
Patrone van onkruidpopulasies in ‘n langtermynbewaringsboerderyproef
September 2015
ELBÉ HUGO, LNR-Instituut vir Graangewasse
Tydens die 2008/2009-seisoen het die LNR-Instituut vir Graangewasse (LNR-IGG) begin met ‘n langtermynbewaringsboerderyproef op leemsandgrond (16% klei in die bogrond) wat tussen Klerksdorp en Ventersdorp geleë is.
Daar is nou...
Noordelike mielieblaarskroei op twee plekke opgemerk in Noordwes Provinsie
September 2015
MARYKE CRAVEN, BRADLEY FLETT en DIRK BRUWER, LNR-Instituut vir Graangewasse
Soos meeste besproeiingsprodusente, sukkel Grootpan-produsente in die Noordwes Provinsie, jaarliks met die voorkoms van noordelike mielieblaarskroei. Dié siekte word gekenmerk deur ovaalvormige letsels wat...
Is daar Gibberella-vrot in jou land?
September 2015
ANEEN SCHOEMAN en SONIA-MARI GREYLING, LRN-Instituut vir Graangewasse
Wortel-, kroon-, stam- en/of kopvrot by mielies is belangrik aangesien dit lei tot finansiële verliese vir produsente. Kopvrotte affekteer die graankwaliteit wat lei tot laer gradering...
Integration of insect-pathogenic fungi with chemical insecticides
September 2015
NOKULUNGA MZIMELA and JUSTIN HATTING, ARC-Small Grain Institute, Bethlehem
Awareness of environmental damage caused by chemical insecticides, several cases of insecticide resistance being reported annually against different groups of insecticides and strict regulations associated...
How compatible is entomopathogenic nematodes with other pest management strategies?
September 2015
TSHIMA RAMAKUWELA, ARC-Small Grain Institute, Bethlehem
Entomopathogenic nematodes belong to the genera Steinernema and Heterorhabditis and have been successfully used over decades as safe biocontrol agents for the management of key agricultural pests.
Entomopathogenic nematodes are insect parasitic round...
Host plant resistance to wheat rusts: Cost saving solution reducing fungicide applications
September 2015
KRISHNA NAICKER, ARC-Small Grain Institute, Bethlehem
There are three types of rust that infect wheat, and they are stripe, leaf and stem rust (Photo 1a - Photo 1c). The rusts are obligate parasites and...
