Impacts of supplemental irrigation as a climate change adaptation strategy for maize production: a case of the Eastern Cape Province of South Africa

Ndhleve, Simbarashe; Nakin, M. D. V.; Longo-Mbenza, Benjamin

doi:10.4314/wsa.v43i2.06

Cited by 21 publications

(22 citation statements)

References 16 publications

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“…During the previous decades, the main source of water was canal irrigation water, but nowadays, water shortage is severe, so supplemental irrigation can be helpful especially in arid environments. Supplementary irrigation, particularly during critical crop phenological stages and phases, can improve cereal crop yield as well as water efficiency in cereal based cropping systems 262 . Supplementary irrigation practice is a simple, nevertheless, extremely effective practice that allows the farming community to grow and manage cereal crops by irrigating at the optimum time, without being at mercy of the unpredictable precipitation.…”

Section: Adaptation Strategies In Response To Climate Changementioning

confidence: 99%

The fingerprints of climate warming on cereal crops phenology and adaptation options

Fatima

Ahmed

Hussain

et al. 2020

Sci Rep

168

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Growth and development of cereal crops are linked to weather, day length and growing degree-days (GDDs) which make them responsive to the specific environments in specific seasons. Global temperature is rising due to human activities such as burning of fossil fuels and clearance of woodlands for building construction. The rise in temperature disrupts crop growth and development. Disturbance mainly causes a shift in phenological development of crops and affects their economic yield. Scientists and farmers adapt to these phenological shifts, in part, by changing sowing time and cultivar shifts which may increase or decrease crop growth duration. Nonetheless, climate warming is a global phenomenon and cannot be avoided. In this scenario, food security can be ensured by improving cereal production through agronomic management, breeding of climate-adapted genotypes and increasing genetic biodiversity. In this review, climate warming, its impact and consequences are discussed with reference to their influences on phenological shifts. Furthermore, how different cereal crops adapt to climate warming by regulating their phenological development is elaborated. Based on the above mentioned discussion, different management strategies to cope with climate warming are suggested.

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Section: Adaptation Strategies In Response To Climate Changementioning

confidence: 99%

The fingerprints of climate warming on cereal crops phenology and adaptation options

Fatima

Ahmed

Hussain

et al. 2020

Sci Rep

168

View full text Add to dashboard Cite

show abstract

“…Potential yield refers to the maximum yield that can be attained by a crop in a given environment [4]. Potential yield is largely determined by a specific combination of factors, such as solar radiation, soil type, temperature, plant density, genetic potential of a given genotype, biotic and abiotic constraints [8][9][10]. However, realized yield, also known as attainable yield, obtained by a farmer is more frequently influenced by poor agricultural practices [9].…”

Section: Introductionmentioning

confidence: 99%

Estimation of Maize (Zea mays L.) Yield Per Harvest Area: Appropriate Methods

Tandzi

Mutengwa

2019

Agronomy

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Standardization of crop yield estimation methods at various levels of farming helps to obtain accurate agricultural statistics as well as assessing the suitability of agricultural practices under various production conditions. The current paper reviews various maize yield estimation methods, taking into account available yield parameters, and it also analyses the yield gap between maize potential and attainable yield. The easiest and more reliable methods of yield estimation are based on yield parameters collected from the field. However, farmer estimation methods are cheaper and faster compared to any other method of yield estimation from farmers’ fields. This paper also elaborates on the importance of the use of more complex methods for yield estimation, such as remote sensing and crop modelling. These complex methods are more accurate and can predict yield before field harvest with less deviation from the exact harvest yield. However, they are very expensive and not efficient for small plots of land (less than 1 ha). Factors that contribute to the gap between potential and actual yield include poor implementation of agricultural policies, strict regulation of fertilizer inputs, vulnerability of smallholder cropping systems to adverse climatic conditions, occurrence of biotic and abiotic constraints, as well as unavailability of seeds and labor.

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“…The use of water recycling on the farm, the indigenous method of water conservation, practicing spiritual exercise requesting for rain were all used. According to Ndhleve et al (2017), in South Africa, supplementary irrigation and change of planting date were identified for adaptation strategy. Farmers engage in the adaptation by re-planning or shifting the planting date to earlier or later moments; additionally, the use of forecasting and weather reports were all measures used.…”

Section: Introductionmentioning

confidence: 99%

Prioritization on cultivation and climate change adaptation techniques: a potential option in strengthening climate resilience in South Africa

2019

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Numerous challenges currently experienced in the world today stemmed from global scientific collaborations that rely mainly on the ecosystem. Impact of climate variability threatens food security and production especially among the rural farming households. The study was conducted in North West Province of South Africa, to identify climate change adaptation techniques and to analyze prioritization of farmers on cultivation, both in the past and present. A total number of 497 rural household maize farmers were selected through a stratified sampling method from two district municipalities. Descriptive statistics were used to compute the mean, frequency and percentages, while Wilcoxon sign rank test established farmers’ prioritization on cultivation. The results show different adaptation strategies used. On the other hand, Wilcoxon sign rank test showed a statistically significant difference (P<0.05) between the farmers prioritization on cultivation both in the past and present. The study recommends incorporation of conservation agricultural practices to the existing strategies.

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Impacts of supplemental irrigation as a climate change adaptation strategy for maize production: a case of the Eastern Cape Province of South Africa

Cited by 21 publications

References 16 publications

The fingerprints of climate warming on cereal crops phenology and adaptation options

The fingerprints of climate warming on cereal crops phenology and adaptation options

Estimation of Maize (Zea mays L.) Yield Per Harvest Area: Appropriate Methods

Prioritization on cultivation and climate change adaptation techniques: a potential option in strengthening climate resilience in South Africa

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