A review of South African sugarcane production in the 2021/22 season: climate, production and economics

This paper characterises South African sugarcane production for the 2021/22 milling season, from an agricultural perspective, to enable the industry to evaluate recent production strategies, and to identify priorities for improved efficiency. The industry's cane and sugar production during the 2021/22 season was 17.2 and 1.84 million tons, respectively. These figures show a marked drop of 5.6% for cane and 8.7% for sugar, when compared to the production figures for the 2020/21 season. The estimated industry average cane yield and quality also decreased slightly, compared to the previous season, but the main reason the drop in cane and sugar production was the limited milling capacity at several mills in KwaZulu-Natal. The civil unrest in July 2021 exacerbated the situation, causing disruptions to harvest and mill operations, as well as the subsequent closure of mills in parts of KwaZulu-Natal. The area harvested decreased considerably from an estimated 254 028 ha in 2020/21 to 241 030 ha in 2021/22 while estimated carry-over cane area increased from 24 029 ha to 32 476 ha over the same period. Rainfall was generally well above the long-term mean and well-distributed in most areas, while irrigation water supply also improved remarkably, compared to 2020 supply. Low temperatures and reduced sunshine duration caused yield reduction in the northern irrigated areas, but most rainfed areas experienced yield improvements when compared to 2020/21, because of the good rainfall. The Midlands region experienced severe frost damage during the winter of 2021, which had a negative impact on cane yield and quality. The Sugar Industry Value Chain Master Plan continued to help stabilise local sugar demand as well as reduce imports and exports at low world market prices, which all contributed to a 6% increase in the Recoverable Value (RV) price. This improved profitability for both largeand small-scale growers. COVID-19 had no noteworthy impact on sugarcane production.

A review of South African sugarcane production the 2020/21 season

This paper characterises South African sugarcane production for the 2020/21 milling season from an agricultural perspective, in order to evaluate recent production strategies, and to identify priorities for improved efficiencies. The industry produced 18.22 million tons of cane, harvested from an estimated 254 028 ha (71.73 t/ha). The cane to sugar ratio was 8.89, and sugar production decreased from the 2019/20 season by 7%, to 2.28 million tons. After closing early in 2019/20, the Darnall Mill (along with Umzimkulu) remained closed in 2020/21, resulting in cane oversupply at some mills and considerable carryover tonnages. Cane quality improved in northern irrigated areas. Decreasing cane quality in the Noodsberg and UCL mill supply areas warrants investigation. Rainfall was generally below-average, with dry 2019 and 2020 winters;however, relief was offered by good spring/summer rains. Irrigation water supplies from the Bivane Dam and the Umhlatuze Catchment were significantly improved. The 2020 winter was particularly cold, and the Midlands cane was affected by frost. Eldana incidence decreased overall from the previous season, but flourished in carryover cane in the South Coast and Amatikulu regions. Smut prevalence was slightly higher than in 2019, and efforts to reduce these levels remain a priority in the northern parts of the industry, particularly in Pongola. A 19% increase in the Recoverable Value (RV) price saw a return to profitability for large- and small-scale growers alike. The negative impacts of the COVID-19 pandemic on local sugarcane producers were minimal, and the increase in the RV price is partly attributed to COVID. The Sugar Industry Value Chain Master Plan also contributed to the increase in the RV price, by securing local sales and more effectively discouraging imports.

Remote practicals in the time of coronavirus, a multidisciplinary approach

Due to the COVID-19 pandemic, universities across the world have curtailed face to face teaching. Associated with this is the halt to the delivery of the practical experience required of engineering students. The Multidisciplinary Engineering Education (MEE) team at The University of Sheffield have responded to this problem in an efficient and effective way by recording laboratory experiences and putting videos, quizzes and data online for students to engage with. The focus of this work was on ensuring all Learning Outcomes (LOs) for modules and courses were preserved. Naturally, practical skills cannot be easily provided using this approach, but it is an effective way of getting students to interact with real data, uncertainty and equipment which they cannot access directly. A number of short case studies from across the range of engineering disciplines are provided to inspire and guide other educators in how they can move experiments on line in an efficient and effective manner. No student feedback is available at the time of writing, but anecdotal evidence is that this approach is at least acceptable for students and a way of collecting future feedback is suggested. The effort expended on this approach and the artefacts produced will support student learning after the initial disruption of the lockdown has passed.