Montmorillonite-reinforced alginate/polyacrylamide semi-IPN hydrogel fertilizers engineered with betaine for enhanced crop resilience under cold and drought stress.
Xu R, Tian Y, Zhu B, Qu G, Zheng X
Soil Health
Gardeners in cold, dry climates who lose plants to late frosts or summer dry spells could one day apply a single soil amendment that holds water like a sponge, releases fertilizer only when plants need it, and helps roots weather the cold — all at once.
Researchers created a gel material you mix into soil that acts like a slow-release fertilizer and a tiny water reservoir at the same time. It's smart enough to release more nutrients when the soil is warm and hold back when it's cold, and it even contains a natural compound that helps plants cope with stress. In tests on forage grasses under drought and near-freezing conditions, plants treated with this gel nearly doubled their fresh weight compared to untreated plants.
Key Findings
Available phosphorus in treated soil increased by over 271% and ammonium nitrogen by nearly 9-fold compared to controls.
Plants grown with the hydrogel showed a 98.89% increase in fresh weight under combined drought and cold stress.
The material maintains structural flexibility and function at temperatures as low as -25°C, enabling year-round soil moisture retention.
chevron_right Technical Summary
Scientists engineered a smart hydrogel fertilizer containing clay, a plant-protective compound (betaine), and biodegradable polymers that releases nutrients in response to soil temperature and pH — dramatically improving crop survival under drought and freezing conditions.
Abstract Preview
Global agricultural productivity is increasingly threatened by the compounding effects of water scarcity, low-temperature extremes, and inefficient fertilizer utilization. To overcome these challen...
open_in_new Read full abstractAbstract copyright held by the original publisher.
Species Mentioned
Was this useful?
Want to tell us more? (optional)
Thanks for the note!
Something went wrong — please try again.
Too many submissions. Try again in an hour.
Targeted knockout of a host peroxisomal peptidase confers field resistance to...
The corn in your grocery store and the staple food keeping millions of East African families fed is under serious threat from a viral disease that can wipe o...
Fodder, also called provender, is any agricultural foodstuff used specifically to feed domesticated livestock, such as cattle, rabbits, sheep, horses, chickens and pigs. "Fodder" refers particularly to food given to the animals, rather than that which they forage for themselves. Fodder includes h...