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Full-Text Articles in Physical Sciences and Mathematics
The Effect Of Water Management And Ratoon Rice Cropping On Methane Emissions And Harvest Yield In Arkansas, Marguerita Leavitt
The Effect Of Water Management And Ratoon Rice Cropping On Methane Emissions And Harvest Yield In Arkansas, Marguerita Leavitt
Graduate Theses and Dissertations
Sustainable intensification of rice farming is crucial to meeting human food needs while reducing environmental impacts. Rice produces 8% of all anthropogenic CH4, which is a potent greenhouse gas. CH4 emissions can potentially be reduced by cultivation practices that minimize the number of days the fields are saturated, such as dry-seeding instead of water-seeding and irrigation using the alternate wetting and drying (AWD) technique instead of delayed, continuous flooding (DF). Ratoon cropping, wherein a second crop of rice is grown from the harvested stubble of the first crop, can be used to produce additional yield with minimal labor, but may …
Data Analytics For Sustainable Food And Agriculture Systems, Megan Lord Reavis
Data Analytics For Sustainable Food And Agriculture Systems, Megan Lord Reavis
Graduate Theses and Dissertations
The increasing concentration of anthropogenic greenhouse gases in the atmosphere is altering the climate, posing a serious threat to global agriculture and food security. Agriculture and food production contribute a quarter of all GHG emissions produced, so there is a critical need to limit emissions in this area while increasing food production to feed the anticipated 10 billion people by 2050. To address the needs of the future, data-driven solutions are needed to guide decision-making and provide support for actionable climate mitigation and survival strategies. Research efforts must be focused on analyzing problems on multiple scales, identifying new ways to …
Disaggregating The Effect Of Drought And Heat Stress During Flowering On Spikelet Fertility In Rice, Lisa Straussberger
Disaggregating The Effect Of Drought And Heat Stress During Flowering On Spikelet Fertility In Rice, Lisa Straussberger
Graduate Theses and Dissertations
Due to rice’s wide geographic distribution, extending from 50°N to 35°S, rice is
forecasted to be the most vulnerable crop to warming global climates. Previous studies have
predicted lower rice yields and increasing rice yield variability due to higher frequencies of heat
stress events, and a higher variability in precipitation patterns due to global warming. As such,
understanding the effects of drought and heat stress intensity and frequency on rice yields is of
upmost importance to feeding the growing global population.
Given that drought and high-temperature stress often occur together, it is essential to
disaggregate the two individual stressors and …