Predicting silage maize yield and quality in Sweden as influenced by climate change and variability

Eckersten, Henrik; Herrmann, A.; Kornher, Alois; Halling, Magnus; Sindhöj, Erik; Lewan, Elisabet

doi:10.1080/09064710.2011.585176

Cited by 18 publications

(24 citation statements)

References 37 publications

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“…In addition, heat stress during pollination will increase the vulnerability of several commodity crops (Sage and Kubien 2007;Semenov and Shewry 2011), especially in areas where crops are grown close to the critical temperature limit for photosynthesis (Ruiz-Vera et al 2013). In contrast, higher temperatures may prolong cultivation seasons and lead to higher yields in northern latitudes and colder areas (Eckersten et al 2011).…”

Section: Climate Changementioning

confidence: 99%

Future threats to agricultural food production posed by environmental degradation, climate change, and animal and plant diseases – a risk analysis in three economic and climate settings

et al. 2014

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Global food security is one of the most pressing issues for humanity, and agricultural production is critical for achieving this. The existing analyses of specific threats to agricultural food production seldom bring out the contrasts associated with different levels of economic development and different climatic zones. We therefore investigated the same biophysical threats in three modelled types of countries with different economic and climatic conditions. The threats analysed were environmental degradation, climate change and diseases and pests of animals and plants. These threats were analysed with a methodology enabling the associated risks to be compared. The timeframe was 2012-2050 and the analysis was based on three underlying assumptions for 2050: the world population will have increased to 9 billion people, there will be a larger middle class in the world and climate change will be causing more extreme weather events, higher temperatures and altered precipitation. It is suggested that the risks, presented by the biophysical threats analysed, differ among the three modelled types of countries and that climate zone, public stewardship and economic strength are major determinants of these differences. These determinants are far from evenly spread among the world's major food producers, which implies that diversification of risk monitoring and international assessment of agricultural production is critical for assuring global food security in 2050.

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Section: Climate Changementioning

confidence: 99%

Future threats to agricultural food production posed by environmental degradation, climate change, and animal and plant diseases – a risk analysis in three economic and climate settings

et al. 2014

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“…In previous studies of factors affecting maize nutritive value, year was considered one of the more prominent factors (Boon et al ., ), and these studies were conducted usually at only one (Darby and Lauer, ; Farrell and Gilliland, ) or occasionally several sites (Eckersten et al ., ). Furthermore, the most common were experiments investigating pre‐ensilage nutritive value of maize forage (Kruse et al ., ) rather than also post‐ensilage nutritive value of maize silage (Lynch et al ., ).…”

Section: Introductionmentioning

confidence: 97%

“…(), while Darby and Lauer () investigated its effects on nutritive value development as crop maturity progressed through to harvest time. The weather also played a specific role for maize grown in marginal climatic conditions such as in Northern Ireland (Farrell and Gilliland, ) or Sweden (Eckersten et al ., ), where year‐to‐year variation in harvest quality represents an important issue (Farrell and Gilliland, ). For example, Kruse et al .…”

Section: Introductionmentioning

confidence: 99%

Yearly variation in maize silage fermentation and nutritive quality

Loučka

Hakl

Jirmanová

et al. 2014

Grass and Forage Science

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A significant effect of year on maize nutritive value has been reported in many studies; however, the direct effect of year on both nutritive values and fermentation traits of maize silage has not been directly investigated. During a 7‐year period (2006–2012), we investigated the following variables of 597 maize silages commercially produced in bunker silos on farms in the Czech Republic: dry‐matter content (DM), crude protein (CP), starch, amylase‐treated neutral detergent fibre (aNDF), acid detergent fibre (ADF) and net energy lactation (NEL), as well as fermentation traits such as pH, contents of lactic acid (LA), acetic acid (AA), butyric acid (BA) and the ratio between LA and volatile fatty acids. The effect of year and DM explained 16 and 30% of the variability in nutritive and fermentation traits respectively. Although a common silage DM content was used for each year, the climatic effect of year significantly changed almost all tested variables, but particularly aNDF, ADF, starch, AA and BA. The year contribution to trait variability effect was as much as two times higher for fermentation traits (12·6%) as for nutritive value (6·1%). Temperature–precipitation relationships associated with achieved maize yield were considered as factors explaining the year effect. Temperature and precipitation averaged over the full vegetation period had low relevance to nutritive and fermentation traits. This study reveals the importance of year‐to‐year variation in silage nutritive value and fermentation, which could be useful for understanding the contribution of year to these changes in both field experiments and national assessments.

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“…Warming has already caused a northward expansion of the area of silage maize in northern Europe into southern parts of Scandinavia, where the system of grass and silage maize for intensive dairy production has largely replaced the traditional fodder production systems (Odgaard et al 2011;Eckersten et al 2014;Nkurunziza et al 2014). Very recently grain maize has started to be grown in southern parts of Denmark, reflecting the warming trends .…”

Section: Changes In Crop Productivity and Suitabilitymentioning

confidence: 99%