Influence and Mechanism of Fertilization and Irrigation of Heavy Metal Accumulation in Salinized Soils

Agriculture, Год журнала: 2024, Номер 14(10), С. 1694 - 1694

Опубликована: Сен. 27, 2024

The impact of fertilization and irrigation on heavy metal accumulation in saline–alkali soil its underlying mechanisms are critical issues given the constraints that salinization places agricultural development crop quality. This study addressed these by investigating effects adjusting organic fertilizer types, proportions, volumes physicochemical properties lightly to moderately soils analyzing interaction between microorganisms metals. results indicate rational application fertilizers combined with supplemental can mitigate salinity water deficits, reduce pH, thereby enhancing oxidation, promoting nitrogen transformation increasing nitrate–nitrogen levels. As proportion increased, residues, enrichment, risk indices grains also increased. Compared no irrigation, 22 mm during grain-filling stage increased surface Cd content, Zn potential ecological index (HRI) 10.2%, 3.1%, 8%, respectively, while simultaneously reducing content 12–13.5% decreasing enrichment. Principal component analysis revealed primary factors influencing Cu residues grains. Soil was significantly negatively correlated matter, total nitrogen, ammonium whereas oxidation–reduction potential, soluble microbial biomass were positively correlated. more closely compared those Cd. Specifically, primarily related aliphatic functional groups, followed salinity. Residual associated properties, moisture content. mainly carbon (MBC), residual linked These findings provide theoretical insights for improving managing contamination, implications sustainable agriculture environmental protection.

Язык: Английский

Preparation of anti-leakage and salt-isolation absorbent polymer based on tragacanth gum

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 287, С. 138632 - 138632

Опубликована: Дек. 10, 2024

Язык: Английский