Grondbone-oesskattings – ‘n provinsiale perspektief
Grondbone is ’n gewas met ’n hoë waarde. Dit word meestal in die noordwestelike streke van Suid-Afrika geproduseer en gewoonlik in gebiede waar die grond sanderig is – soos in die weste en noordweste...
IMPACT of weeds and nematodes on crop production
August 2018
NANCY NTIDI, ARC-Grain Crops, Potchefstroom
The role of weeds as hosts of other pests affecting crops does not only have an indirect effect, but also has an economic impact on crop production. Weeds serving...
Dié wisselboustelsel met lusern, mielies en skape wérk
Mense verander dikwels slegs as hulle uit hul gemaksone gedwing word. Mnr Willie Roux, ’n produsent op die plaas Lorenco in die Reitz-omgewing, is geen uitsondering nie.
Willie was in die verlede ’n koringprodusent, maar...
Potential export market opportunities for South African maize
June 2017
MICHELLE MOKONE, agricultural economist: Grain SA
Africa’s largest maize producer is once again set to regain its status as a net exporter of maize. South Africa, which typically produces an average of 11 million...
The effect of plant stress induced by northern corn leaf blight in maize
Plant stress may be defined as an adverse effect on the plant which is brought about by a change in the optimal growing environment. Under such less than optimal growing conditions the plant’s growth,...
Management of Sclerotinia head and stem rot
February 2019
MARLESE BESTER and LISA ROTHMANN, Department of Plant Sciences: Plant Pathology Division, University of the Free State
Sclerotinia sclerotiorum is a hemi-biotrophic fungal plant pathogen, therefore a biotrophic and necrotrophic pathogenic lifestyle is followed. This...
Katoen: Moontlike wisselbougewas
October 2018
LOUIS OLIVIER, besturende direkteur, Vaalharts Katoen en PETRU FOURIE, navorsingskoördineerder en produksiekoste-analis, Graan SA
Met die uitdagende winsgewendheidsituasie van graanproduksie is produsente op die uitkyk vir alternatiewe gewasse, anders as die tradisionele mielies, sonneblom...
Results of three years’ national sunflower disease surveys
October 2016
MOSES RAMUSI and BRADLEY FLETT, ARC Grain Crops Institute, Potchefstroom
The sunflower (Helianthus annuus L.) is the most important cultivated oilseed crop in South Africa. Annual production ranges from 500 000 tons to 700 000...
Die belangrikheid van markinligting: Wat leer ons daaruit?
Deel 4: Koring
Dié reeks handel oor die algemene belangrikheid en die gebruik van inligting in die Suid-Afrikaanse graan- en oliesademarkte. Deel 3 van die reeks het na die geelmielie-inligting verwys, terwyl hierdie artikel op...
Vrystaat se doeltreffendheid bekyk
July 2018
Doeltreffendheid en effektiwiteit en die feit dat beide belangrike konsepte vir die hedendaagse produsent is, is in Deel 1 van die reeks aangespreek. Verbruiksdoeltreffendheid van insette is van kardinale belang – en veral...