Die invloed van grondbewerking op vroeë wortelontwikkeling en biomassa van koringkultivars (<i>Triticum aestivum</i> L.)

Steyn, J. T.; Tolmay, J.P.C.; Human, J. J.

doi:10.1080/02571862.1995.10634355

Cited by 1 publication

(2 citation statements)

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“…Soil cultivation practices for wheat production under dryland conditions have remained very similar during the past 25 years with conventional tillage (Steyn, 1994) remaining the practice of choice. In the mid 1980's to 1990's several studies were conducted in the Free State to evaluate the effect of tillage methods on wheat yield and quality.…”

Section: Cultivationmentioning

confidence: 99%

“…Two studies in the Eastern Free State (Hoffmann, 1990;Tolmay, 1995) recommended conventional tillage in this region due to better plant development, yield and lower disease risk. Steyn et al (1995) recommended reduced tillage systems for the semi-arid production regions of the Central Free State where water shortages were more common and disease pressure less severe. Subsequent studies by Kotzè and Du Preez (2007) found that organic carbon (C) content and pH levels in no-tilled soils were significantly higher in top soil layers when compared to conventional tillage, but that stratification of P and K manifested strongly in these layers within a period of 10 years (Kotzè & Du Preez, 2008).…”

Section: Cultivationmentioning

confidence: 99%

See 1 more Smart Citation

An overview of the context and scope of wheat (Triticum aestivum) research in South Africa from 1983 to 2008

Smit¹,

Tolmay²,

Barnard³

et al. 2010

South African Journal of Plant and Soil

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The domestic requirement for wheat in South Africa is approximately 2.8 million tons and annually the shortfall on local production is imported to meet the demand. During the past 25 years two distinct wheat marketing mechanisms characterised the wheat industry, impacting significantly on both research and industry. In 1996 the single channel marketing system through the Wheat Board made way for a liberal marketing environment in which market forces of supply and demand determine price. This refocused most research activities on factors to lower input costs and risks, while increasing the profitability of wheat production. Significant challenges were experienced with much stricter milling and baking quality requirements impacting on not only the development of adapted wheat cultivars for South African conditions, but also on fertiliser and cultivar recommendations, as well as production practices. Minimum tillage, preharvest sprouting, as well as the threat of Russian wheat aphid and stripe rust were some of the pertinent challenges faced during this time. Significant scientific breakthroughs of international importance were made with regard to the physiological and biochemical nature of insect resistance and plant defence as well as the transfer of resistance genes from alien species. This review provides an overview of the most pertinent wheat research undertaken from 1983 to 2008.

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Section: Cultivationmentioning

confidence: 99%