Farmers Review Africa July/Aug 2016 | Page 38

Cropping Canola production in South Africa Farmer's Review Africa speaks to Ricky The crop has been earmarked as a According to Rick Horbury, there has Horbury, Technical Advisor at Bayer development crop for South Africa, as been an increase in disease, and it can CropScience, Australia and Dick Uys, the country remains a net importer of take away half a ton away of the crop. Head of Marketing at Bayer plant oils and oilcake, to the tune of The type of diseases prevalent in both CropScience South Africa about the 70% per annum. While canola crop in countries include sclerotinia, blackleg, challenges affecting Canola production and how South Africa can advance canola production. South Africa's canola production has increased significantly over the past two decades, and the area planted has risen over the years and currently stands at 71 050ha, with canola production increasing to 93 000 tons during the 2015/16 season, states Dick Uys. Canola crop across the world is a summer crop while in South Africa it is a winter crop, mainly grown in the Western Cape. It is produced in cool weather conditions, and the optimum temperature for growth and production is 21˚c. Temperatures below 10 o c result in progressively poorer germination and emergence. Lower temperature impair protein production needed for germination and early seedling development. H o w e ve r, g l o b a l l y t h e w e a t h e r patterns has had a negative impact of the canola production of the crop. July - August 2016 Australia is produced in the Western seedling blight, white leaf blister, Australia, mainly for export to Asia downy mildew, they all contribute to especially the Chinese market, but reductions in the potential yield. It is there are lot of similarities between therefore critical to be pro-active in the two countries and more lessons coming up with proper management can be shared by the two countries in strategies to overcome the diseases order to best understand the crop, affecting the canola crop. Australia has explains Ricky Horbury. developed canola protection plan which The economics of production of canola can help South Africa in developing its is a major concern to all producers own canola protection. across the globe, and the challenges In addition, it is important to continue affecting canola production are similar the promotion of reasonable rotations for both countries, therefore it is key for canola fields. Canola offers great for producers to better understand the benefits as a rotation crop especially crop in order to make better with wheat, as it causes an increase in management decisions, further the yields of the subsequent cereal explains Ricky Horbury. crops. Additional benefits of a crop Some of the key constraints that rotation systems includes the reduction impact the canola yield production, in disease; more effective weed include low growing season control; improved root system; precipitation, variety availability, planters and harvesters that are used optimum plant density, fertility as well more effectively as well as better as the disease and insects, and all distribution of the financial risk. All in all, following the recommended one-in-three to four year canola rotation can provide better yields with reduced risk for all crops in the rotation. these need to be solved, including the correct planting date, and weed control programme. [38]FARMERS REVIEW AFRICA www.farmersreviewafrica.com