Salinity can turn nitrogen into both a productivity and pollution problem
WHAT THE EVIDENCE SAYS
A spatial nitrogen budget and pairwise synthesis found salinity associated with 13% higher nitrogen inputs, 7% lower nitrogen harvest and 61% higher reactive-nitrogen losses. Across ten management categories, the authors estimate potential to cut annual reactive-nitrogen losses by 59% while increasing crop production.
WHY IT MATTERS / OUR READ
Soil salinity is not only a yield constraint; it changes nutrient efficiency and pollution risk. That couples salinity adaptation to fertilizer and water management.
CAVEATS / UNCERTAINTY
The mitigation estimates are global synthesis/model potential, not guaranteed field outcomes. Costs, salinity type, water availability, adoption, soil chemistry and local agronomy will constrain realized benefits.
SOURCE
Nature Food
View original evidence ↗
A global synthesis estimates saline croplands use more nitrogen, harvest less of it and lose substantially more reactive nitrogen.
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