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#maize

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Bruce MacDonald

I call it maize.

"Even before the constitutional reform, it was mostly illegal to plant modified corn in Mexico thanks to a 2013 lawsuit brought by farmer activists. But experts say it still happens. And they say the presence of engineered seeds and corn in Mexico threatens the vast diversity of maize crops here, which span from burnt orange to purple and pink and which have been adapted over centuries to be grown at different altitudes and climates."
latimes.com/world-nation/story

Los Angeles Times · Mexico bans planting of genetically modified American cornBy Kate Linthicum
#corn#maize#PlantGenetics
Public
Alexander J. Stein

#Malawi: Consumption of whole #maize flour could boost #foodsecurity. Dehulling causes losses of 10% for #protein, 60% for #zinc & 50% for iron. Local preferences are for refined #flour due to convenience & cultural norms, despite the #nutrition benefits of whole grain flour: doi.org/10.1007/s44187-025-003

SpringerLinkWhole maize flour could enhance food and nutrition security in Malawi - Discover FoodMaize is the staple cereal in Malawi, with a daily per capita consumption of 383 g (dry matter basis), primarily consumed in the form of nsima, a thick porridge. We combined a milling experiment with focus group discussions (FGDs) to provide insights into mass and nutrient losses during maize grain dehulling and maize flour consumption patterns in rural Malawi. Milling batches (30 kg) of four maize grain varieties were dehulled at three abrasive disk dehullers under controlled conditions. The impact of maize variety and dehuller design on mass and nutrient losses during dehulling was statistically significant (p < 0.05), with a mean mass loss of 28.1 ± 5.7%, and nutrient losses of 9.8 ± 1.9% for protein, 61.7 ± 2.0% for zinc, and 47.7 ± 3.6% for iron. Six FGDs conducted in rural areas of Lilongwe District revealed a preference for refined flour due to convenience and cultural norms, despite the nutritional benefits of whole grain flour, which was recognized for its ability to provide satiety, particularly during periods of maize scarcity. Participants also highlighted switching between flour types based on seasonal maize availability, social stigma associated with whole grain flour, and awareness of nutrient losses during dehulling. Given Malawi’s precarious food insecurity situation, transitioning from dehulled maize flour nsima to whole maize flour or less refined nsima, is imperative. Our study findings can have food and nutritional savings for other southern Africa countries where the dehulling is a common practice.
Public
Alexander J. Stein

Intensifying #droughts threaten future #foodsecurity: Soybeans, #maize & spring #wheat are most drought-sensitive & prone to severe #yields losses, esp. in US, #Argentina, #Australia & China. GHG #emissions intensify the risk of #drought significantly... (1/2) doi.org/10.3390/atmos16010034 #USA #China

MDPIIntensified Drought Threatens Future Food Security in Major Food-Producing CountriesDrought is one of the most severe natural disasters globally, with its frequency and intensity escalating due to climate change, posing significant threats to agricultural production. This is particularly critical in major food-producing regions, where drought profoundly impacts crop yields. Such impacts can trigger food crises in affected regions and disrupt global food trade patterns, thereby posing substantial risks to global food security. Based on historical data, this study examines the yield response characteristics of key crops—maize, rice, soybean, spring wheat, and winter wheat—under drought conditions during their growth cycles, highlighting variations in drought sensitivity among major food-producing countries. The findings reveal that maize and soybean yield in China, the United States, and Brazil are among the most sensitive and severely affected by drought. Furthermore, using precipitation simulation data from CMIP6 climate models, the study evaluates drought trends and associated crop yield risks under different future emission scenarios. Results indicate that under high-emission scenarios, crops face heightened drought risks during their growth cycles, with China and the United States particularly vulnerable to yield reductions. Additionally, employing copula functions, the study analyzes the probability of simultaneous drought occurrences across multiple countries, shedding light on the evolving trends of multicountry drought events in major food-producing regions. These findings provide a scientific basis for assessing global food security risks and offer policy recommendations to address uncertainties in food supply under climate change.
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Solar 🌄Garden

@Gunnric 2nd click to get to my Alma Mater, who did this study sheffield.ac.uk/news/harvestin and 3rd to the study itself sciencedirect.com/science/arti

Sheffield points out “However, it's important to remember that one size doesn't fit all. We need to tailor these systems to specific locations, especially in hot and dry climates.”

and only when you get to the paper itself do you read it was carried out in "East Africa: an #offGrid system in #Tanzania and a grid-tie system in #Kenya"

By this time it should be clear that growing #maize under #PV is probably a waste of time in the latitudes many readers will be. Shading pasture for sheep maybe, as already catching on.

From my own experiences of #horticulture at 500m altitude at 40 deg N in #Portugal, summer shade is enormously beneficial but counterproductive for early and late season. Seasonal insolation varies vastly. and at times mid-day shade is useful but morning and evening shade counterproductive. So that needs figuring in too. Pulling a shade net over a permanent frame over crop-beds is one thing, moving heavy wired-in panels is another altogether!

The University of SheffieldHarvesting the sun twice: Agrivoltaics shows promise for sustainable food, energy and water management in East AfricaCombining solar power production with agriculture can significantly boost crop yields, conserve water and generate low-carbon electricity for areas particularly vulnerable to climate change, a new study has shown.
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