An assessment of drip irrigation of sugar cane on poorly structured soils in Swaziland

Dodsworth, G. H.; Nixon, D. J.; Sweet, C. P. M.

doi:10.1016/0378-3774(90)90082-a

Cited by 3 publications

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“…On a poorly structured saline/sodic soil in Swaziland (26 • S, 32 • E; altitude 200 m), drip irrigation was compared with furrow irrigation to see if yields and the number of ratoons could be increased (Dodsworth et al, 1990). In the plant crop, drip irrigation gave a small (7.5%) but non-significant yield benefit, but there was no advantage in the first or second ratoon crops.…”

Section: Drip Irrigationmentioning

confidence: 99%

THE WATER RELATIONS AND IRRIGATION REQUIREMENTS OF SUGAR CANE (SACCHARUM OFFICINARUM): A REVIEW

Carr

Knox

2011

Ex. Agric.

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The results of research on the water relations and irrigation needs of sugar cane are collated and summarized in an attempt to link fundamental studies on crop physiology to irrigation practices. Background information on the centres of production of sugar cane is followed by reviews of (1) crop development, including roots; (2) plant water relations; (3) crop water requirements; (4) water productivity; (5) irrigation systems and (6) irrigation scheduling. The majority of the recent research published in the international literature has been conducted in Australia and southern Africa. Leaf/stem extension is a more sensitive indicator of the onset of water stress than stomatal conductance or photosynthesis. Possible mechanisms by which cultivars differ in their responses to drought have been described. Roots extend in depth at rates of 5-18 mm d −1 reaching maximum depths of > 4 m in ca. 300 d providing there are no physical restrictions. The Penman-Monteith equation and the USWB Class A pan both give good estimates of reference crop evapotranspiration (ETo). The corresponding values for the crop coefficient (Kc) are 0.4 (initial stage), 1.25 (peak season) and 0.75 (drying off phase). On an annual basis, the total water-use (ETc) is in the range 1100-1800 mm, with peak daily rates of 6-15 mm d −1 . There is a linear relationship between cane/sucrose yields and actual evapotranspiration (ETc) over the season, with slopes of about 100 (cane) and 13 (sugar) kg (ha mm) −1 (but variable). Water stress during tillering need not result in a loss in yield because of compensatory growth on re-watering. Water can be withheld prior to harvest for periods of time up to the equivalent of twice the depth of available water in the root zone. As alternatives to traditional furrow irrigation, drag-line sprinklers and centre pivots have several advantages, such as allowing the application of small quantities of water at frequent intervals. Drip irrigation should only be contemplated when there are well-organized management systems in place. Methods for scheduling irrigation are summarized and the reasons for their limited uptake considered. In conclusion, the 'drivers for change', including the need for improved environmental protection, influencing technology choice if irrigated sugar cane production is to be sustainable are summarized.

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Section: Drip Irrigationmentioning

confidence: 99%

THE WATER RELATIONS AND IRRIGATION REQUIREMENTS OF SUGAR CANE (SACCHARUM OFFICINARUM): A REVIEW

Carr

Knox

2011

Ex. Agric.

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Irrigation in Southern Africa: Success or Failure?

Mutiro¹,

Lautze

2015

Irrigation and Drainage

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Despite widespread recognition of the importance of irrigation development in southern Africa, no comprehensive examination exists on the performance of past irrigation schemes in the region. This paper systematically examines existing literature on irrigation schemes in southern Africa in order to: (i) determine the proportion that can be considered successful; and (ii) identify and rank factors that explain variation in performance. The results indicate that some 59% of irrigation schemes in southern Africa can be considered successful. Factors associated with successful performance include: management style, irrigation method, crop mix, type of financier and geography. The levels of success identified through this review validate calls to increase the irrigated area in southern Africa. These results nonetheless highlight opportunities to strengthen the way in which future irrigation schemes are undertaken. In particular, these results may call for increased use of sprinkler irrigation and reduced use of flood irrigation with pumping. The results also suggest more investment could be channelled into schemes focused on maize-vegetable crop rotations and sugar cane, and caution applied to government management of schemes. RÉSUMÉMalgré la reconnaissance générale de l'importance du développement de l'irrigation en Afrique australe, il n'existe aucun examen complet de la performance des systèmes d'irrigation dans cette région. Ce document examine systématiquement la littérature existante sur les systèmes d'irrigation en Afrique australe afin de: (i) de déterminer la proportion qui peut être considéré comme un succès; (ii) identifier les facteurs qui expliquent la variation de la performance. Les résultats indiquent que quelque 59% des systèmes d'irrigation en Afrique australe peut être considéré comme un succès. Les facteurs associés à de bons résultats comprennent: le type de gestion, la méthode d'irrigation, le mélange de cultures, le type de bailleur de fonds et la géographie. Les niveaux de succès identifiés par cette revue valident les appels à augmenter la superficie irriguée en Afrique australe. Ces résultats soulignent néanmoins les possibilités de renforcer les futurs systèmes d'irrigation et insistent sur la façon dont sont entrepris ces renforcements. En particulier, ces résultats peuvent appeler pour une utilisation accrue de l'irrigation par aspersion et à réduire l'utilisation de l'irrigation par submersion avec pompage. Les résultats suggèrent également que davantage d'investissements pourraient être canalisée dans des programmes axés sur la rotation maïs-légumes et sur la canne à sucre, et d'appliquer avec prudence la gestion gouvernementale des systèmes irrigués.

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Produtividade da cana-de-açúcar sob irrigação localizada: uma revisão sistemática

Oliveira

Sousa

Ávila

et al. 2020

RSD

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Sugarcane is one of the crops that has been expanding more and more in Brazil, increasing its planted areas day after day and, consequently, its production of sugar and ethanol. This review aims to evaluate productivity and agronomic aspects resulting from production under localized irrigation. Independent researchers analyzed the databases; Science Direct and Scopus, without language restriction, for articles published between January 1990 and May 2018. We include articles with the following characteristics: (a) cane and/or Saccharum officinarum, sugarcane, (b) irrigation and/or water management, availability of sugarcane, availability of water for irrigation of sugarcane, cultivation with a larger irrigated area, increased productivity, coefficient of water requirement for cultivation (c) localized irrigation, cane drip irrigation and drip irrigation in sugar cane. Of the studies analyzed, 100% found beneficial effects of the use of localized irrigation on the productivity of sugarcane, some articles reported that the influence of the implantation cost is greater than in other systems, however, it was concluded that the localized irrigation it was superior in all the attributes analyzed in the present study as gain in the increase of the stem yield. Observing that the irrigation system was more productive in all comparisons.

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An assessment of drip irrigation of sugar cane on poorly structured soils in Swaziland

Cited by 3 publications

References 0 publications

THE WATER RELATIONS AND IRRIGATION REQUIREMENTS OF SUGAR CANE (SACCHARUM OFFICINARUM): A REVIEW

THE WATER RELATIONS AND IRRIGATION REQUIREMENTS OF SUGAR CANE (SACCHARUM OFFICINARUM): A REVIEW

Irrigation in Southern Africa: Success or Failure?

Produtividade da cana-de-açúcar sob irrigação localizada: uma revisão sistemática

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