Adaptation strategies for maize cultivation under climate change in Iran: irrigation and planting date management

Moradi, Rooholla; Koocheki, A.; Mahallati, Mehdi Nassiri; Mansoori, Hamed

doi:10.1007/s11027-012-9410-6

Cited by 91 publications

(54 citation statements)

References 40 publications

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“…Mesmo que a adoção de irrigação do milho leve a produtividades maiores e menos variáveis no futuro, os benefícios econômicos da adoção desta atividade agrícola devem ser pequenos; desta forma, não se espera mudanças no cultivo irrigado do milho no futuro em relação ao adotado atualmente porém os autores atentam que em situações de mudanças climáticas extremas perdas na produtividade do cereal devem ocorrer sendo a irrigação uma provável medida a ser adotada para minimizar esses danos. Moradi et al (2013) mostram que o ciclo do milho cultivado no Irã, diminuiu na maioria dos cenários climáticos analisados da mesma maneira como a produtividade (11 a 38%) considerando data de semeadura fixa e mudanças de -61 a 48% em resposta a diferentes requerimentos de irrigação.…”

Section: Resultsunclassified

Desempenho agronômico do milho em diferentes cenários climáticos no Centro-Oeste do Brasil

Minuzzi

Lopes

2015

Rev. bras. eng. agríc. ambient.

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R E S U M OEste estudo propôs analisar o desempenho agronômico das 1 a e 2 a safras do milho cultivado no Centro-Oeste do Brasil, em diferentes cenários climáticos. Dados climáticos de cinco municípios localizados nas principais regiões produtoras de milho do Mato Grosso, Mato Grosso do Sul e de Goiás, foram utilizados no software Aquacrop 4.0 para determinar a duração do ciclo, produtividade, eficiência do uso da água, requerimento de irrigação líquida e o índice de colheita ajustado em diferentes cenários climáticos, baseados nos valores do percentil 25 e 75% da distribuição do 'ensemble' entre os modelos utilizados para gerar o cenário RCP 4.5 em curto prazo (2016-2035) e médio prazo (2046-2065) do Painel Intergovernamental sobre Mudança Climática. No contexto geral a primeira safra do milho terá redução na duração do ciclo mas não sofrerá com estresse hídrico no Centro-Oeste do Brasil. A produtividade e o requerimento de irrigação líquida do milho safrinha tendem a diminuir quanto maior for a redução na duração do ciclo da cultura. Agronomic performance of maize in different climatic scenarios in the Central West of Brazil A B S T R A C TThis study aimed to analyse the agronomic performance of 1 st and 2 nd season of maize grown in the Central West part of Brazil in different climatic scenarios. Climatic data from five cities located in major maize producing regions of Mato Grosso, Mato Grosso do Sul and Goiás were used in Aquacrop 4.0 software to determine the duration of the cycle, yield, water use efficiency, net irrigation requirement and harvest index adjusted for different climatic scenarios, based on the percentile of 25 and 75% of the distribution of 'ensemble' between the models used to generate the scenario RCP 4.5 in the near term (2016)(2017)(2018)(2019)(2020)(2021)(2022)(2023)(2024)(2025)(2026)(2027)(2028)(2029)(2030)(2031)(2032)(2033)(2034)(2035) and medium term (2046)(2047)(2048)(2049)(2050)(2051)(2052)(2053)(2054)(2055)(2056)(2057)(2058)(2059)(2060)(2061)(2062)(2063)(2064)(2065) of the Intergovernmental Panel on Climate Change. In a general context, the first season of maize will have reduction in duration of the cycle and will not suffer from water stress in the Central West of Brazil. The yield and net irrigation requirement of maize in second season should decrease, the greater the reduction in the duration of the crop cycle. Palavras-chave:Aquacrop produtividade irrigação índice de colheita fenologia Key words: Aquacrop yield irrigation harvest index phenology

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Section: Resultsunclassified

Desempenho agronômico do milho em diferentes cenários climáticos no Centro-Oeste do Brasil

Minuzzi

Lopes

2015

Rev. bras. eng. agríc. ambient.

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“…[72,73], Brazil [32], Nigeria [74], Burkina Faso [75], Tanzania [74], South Africa [74,76], Zimbabwe [77], Egypt [78], Hungary [79], Syria [80], Lebanon [81], Nepal [69], Iran [82] Reduces the effects of yield loss due to temporal rainfall variability Timing of the start of planting dates…”

Section: Roles Of Crop Upgrading Strategies For Cereal Productionmentioning

confidence: 99%

Crop Upgrading Strategies and Modelling for Rainfed Cereals in a Semi-Arid Climate—A Review

Silungwe

Graef

Bellingrath-Kimura

et al. 2018

Water

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Spatiotemporal rainfall variability and low soil fertility are the primary crop production challenges facing poor farmers in semi-arid environments. However, there are few solutions for addressing these challenges. The literature provides several crop upgrading strategies (UPS) for improving crop yields, and biophysical models are used to simulate these strategies. However, the suitability of UPS is limited by systemization of their areas of application and the need to cope with the challenges faced by poor farmers. In this study, we reviewed 187 papers from peer-reviewed journals, conferences and reports that discuss UPS suitable for cereals and biophysical models used to assist in the selection of UPS in semi-arid areas. We found that four UPS were the most suitable, namely tied ridges, microdose fertilization, varying sowing dates, and field scattering. The DSSAT, APSIM and AquaCrop models adequately simulate these UPS. This work provides a systemization of crop UPS and models in semi-arid areas that can be applied by scientists and planners.

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“…sugar beet, maize) is recommended to take advantage of the longer growing season at higher latitudes. In southern conditions where water stress and high temperatures are expected in summer, anticipating planting and using earlymaturing varieties jointly could be an efficient drought escaping strategy for spring-planted crops (Moradi et al, 2013). In the North China Plain for instance, a "double-delay" technology was suggested which consists in delaying both the sowing time of wheat in autumn and the harvesting time of maize, leading to an overall 4-6% increase in total grain yield of the wheat-maize system with climate change (Wang et al, 2012).…”

Section: Shifting Planting Datesmentioning

confidence: 99%

Climate-smart cropping systems for temperate and tropical agriculture: mitigation, adaptation and trade-offs

2017

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-Climate-smart cropping systems should be designed with three objectives: reducing greenhouse gas (GHG) emissions, adapting to changing and fluctuating climate and environment, and securing food production sustainably. Agriculture can improve the net GHG emissions balance via three levers: less N 2 O, CH 4 and CO 2 emissions, more carbon storage, and green energy production (agrifuels, biogas). Reducing the application of mineral N fertilizer is the main option for reducing N 2 O emissions either directly or by increasing the proportion of legumes in the rotation. The most promising options for mitigating CH 4 emissions in paddy fields are based on mid-season drainage or intermittent irrigation. The second option is storing more carbon in soil and biomass by promoting no-tillage (less fuel, crop residues), sowing cover crops, introducing or maintaining grasslands and promoting agroforestry. Breeding for varieties better adapted to thermal shocks and drought is mainly suggested as long-term adaptation to climate change. Short-term strategies have been identified from current practices to take advantage of more favorable growing conditions or to offset negative impacts: shifting sowing dates, changing species, cultivars and crop rotations, modifying soil management and fertilization, introducing or expanding irrigation. Some crops could also move to more suitable locations. Model-based tools and site-specific technologies should be developed to optimize, support and secure farmer's decisions in a context of uncertainty and hazards. Most of the adaptation and mitigation options are going in the same way but tradeoffs will have to be addressed (e.g. increasing the part of legumes will be possible only with significant breeding efforts). This will be a challenge for designing cropping systems in a multifunctional perspective.

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Adaptation strategies for maize cultivation under climate change in Iran: irrigation and planting date management

Cited by 91 publications

References 40 publications

Desempenho agronômico do milho em diferentes cenários climáticos no Centro-Oeste do Brasil

Desempenho agronômico do milho em diferentes cenários climáticos no Centro-Oeste do Brasil

Crop Upgrading Strategies and Modelling for Rainfed Cereals in a Semi-Arid Climate—A Review

Climate-smart cropping systems for temperate and tropical agriculture: mitigation, adaptation and trade-offs

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