Combined controlled-released nitrogen fertilizers and deep placement effects of N leaching, rice yield and N recovery in machine-transplanted rice

The effects of controlled release urea on maize productivity and reactive nitrogen losses: A meta-analysis.

China purchases around 66% of the soy that is traded internationally. This strains the global food supply and contributes to greenhouse gas emissions. Here we show that optimizing the maize and soy production of China can improve its self-sufficiency and also alleviate adverse environmental effects. Using data from more than 1,800 counties in China, we estimate the area-weighted yield potential (Ypot) and yield gaps, setting the attainable yield (Yatt) as the yield achieved by the top 10% of producers per county. We also map out county-by-county acreage allocation and calculate the attainable production capacity according to a set of sustainability criteria. Under optimized conditions, China would be able to produce all the maize and 45% of the soy needed by 2035—while reducing nitrogen fertilizer use by 26%, reactive nitrogen loss by 28% and greenhouse gas emissions by 19%—with the same acreage as 2017, our reference year. China’s feed imports have global sustainability implications. This study uses crop simulations based on current and attainable farmers’ yields to estimate the country’s potential to meet its own demand for maize and soy, as well as associated benefits for GHG emissions and nutrient use efficiency.

Optimization of China’s maize and soy production can ensure feed sufficiency at lower nitrogen and carbon footprints

Mixture of controlled release and normal urea to optimize nitrogen management for high-yielding (>15 Mg ha−1) maize

Controlled-release urea combining with optimal irrigation improved grain yield, nitrogen uptake, and growth of maize

Designing Corn Management Strategies for High Yield and High Nitrogen Use Efficiency

Integrated marine microalgae biorefineries for improved bioactive compounds: A review.

Water deficit aggravated the inhibition of photosynthetic performance of maize under mercury stress but is alleviated by brassinosteroids.

Macroalgae, as one of the important photosynthetic organisms in the marine environment are widely used in various fields, particularly in the production of food and pharmaceuticals. Given their wide distribution, easy accessibility and high efficiency in fixing carbon dioxide through the carbon concentrating mechanism, they can produce abundant nutriments or metabolites. Moreover, macroalgae can assimilate nitrogen and phosphorus bases on the purification of wastewater, and thus further accumulate high levels of bioactive substances. This review mainly introduces the distribution characteristics of macroalgae and their unique bioactive applications in food, medicine and environmental remediation. Their functional ingredients and bioactive substances are beneficial in food production and/or medicine development. Resource utilization of macroalgae coupled with wastewater and waste gas treatment would provide a sustainable path for bioactive substances production.

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Jiameng Guo

Papers

Mixture of controlled release and normal urea to optimize nitrogen management for high-yielding (>15 Mg ha−1) maize

Designing Corn Management Strategies for High Yield and High Nitrogen Use Efficiency

Integrated marine microalgae biorefineries for improved bioactive compounds: A review.

Water deficit aggravated the inhibition of photosynthetic performance of maize under mercury stress but is alleviated by brassinosteroids.

Macroalgae-Derived Multifunctional Bioactive Substances: The Potential Applications for Food and Pharmaceuticals