The effects of irrigation and fertilization on the migration and transformation processes of main chemical components in the soil profile

Hu, Angang; Yu, Zhaoyu; Li, Xiuhua; Gao, Wande; He, Yi; Li, Junyuan

doi:10.1007/s10653-019-00298-3

Cited by 15 publications

(7 citation statements)

References 55 publications

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“…The accumulation of heavy metals in vegetables resulting from irrigation with water contaminated with chemical fertilizer may create a potential public health risk. 45 Drinking water contaminated by agricultural chemicals or eating food grown in soil contaminated by heavy metals may increase the risk of adverse pregnancy outcomes. 46 Recent studies have shown that maternal exposure to high levels of Cd and Pb in placenta tissue is associated with an elevated risk for orofacial clefts in a dose–response relationship in the population of northern China.…”

Section: Discussionmentioning

confidence: 99%

Association between maternal exposure to chemical fertilizer and the risk of birth defects in a rural population in northern China: a population-based study

Lin

et al. 2022

International Health

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Background Maternal exposure to pesticides during early pregnancy is associated with increased risks of birth defects, while the association between maternal exposure to chemical fertilizer during pregnancy and the risk of birth defects remains unknown. Methods Data were from a population-based birth defects surveillance system between 2007 and 2012 in Pingding County, Shanxi Province, northern China. A total of 14 074 births with 235 birth defects were used to estimate spatial clustering and correlations at the village level. A population-based case–control study of 157 cases with birth defects and 204 controls was performed to investigate the association between maternal chemical fertilizer exposure and the risk of birth defects by a two-level logistic model. Results The total prevalence of birth defects between 2007 and 2012 was 167.0/10 000 births. The spatial analysis indicated a remarkable high-risk area of birth defects in the southeast of Pingding County and the use of chemical fertilizer was associated with the risk of birth defects at the village level. After adjusting for confounders at the individual level, mothers who live in villages with chemical fertilizer application ≥65 tons/y had an increased risk of birth defects (adjusted odds ratio 2.06 [95% confidence interval 1.23 to 3.46]) compared with those of <65 tons/y. Conclusions Our findings suggest that the risk of birth defects may be associated with the use of chemical fertilizer in rural northern China. The findings must be cautiously interpreted and need to be investigated on larger samples.

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Section: Discussionmentioning

confidence: 99%

Association between maternal exposure to chemical fertilizer and the risk of birth defects in a rural population in northern China: a population-based study

Lin

et al. 2022

International Health

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“…The geochemical modeling software, Visual MINTEQ 3.1, was used to predict changes in P species at 1, 28, and 56 DAF. Visual MINTEQ has been often used to identify transformation and migration of chemical species in soils, including release of dissolved ions. − Visual MINTEQ results, combined with direct speciation techniques, have been effectively used to understand the behavior of chemical species in soil water systems . On the basis of the porewater composition, the model identifies the minerals that could be present in soils.…”

Section: Methodsmentioning

confidence: 99%

“…Visual MINTEQ has been often used to identify transformation and migration of chemical species in soils, including release of dissolved ions. 52 Phosphorus K-XANES: Soil Sample Processing, Data Collection, and Analysis. Two soils (Lakeland and Osborne series) were selected for P-XANES analysis due to their differences in P release.…”

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confidence: 99%

Phosphorus Release and Speciation in Manganese(IV) Oxide and Zeolite-Amended Flooded Soils

Attanayake

Kumaragamage

Amarawansha

et al. 2022

Environ. Sci. Technol.

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Phosphorus (P) losses from flooded soils and subsequent transport to waterways contribute to eutrophication of surface waters. This study evaluated the effectiveness of MnO2 and a zeolite Y amendment in reducing P release from flooded soils and explored the underlying mechanisms controlling P release. Unamended and amended (MnO2 or zeolite, surface-amended at 5 Mg ha–1) soil monoliths from four clayey–alkaline soils were flooded at 22 ± 2 °C for 56 days. Soil redox potential and dissolved reactive P (DRP), pH, and concentrations of major cations and anions in porewater and floodwater were analyzed periodically. Soil P speciation was simulated using Visual MINTEQ at 1, 28, and 56 days after flooding (DAF) and P K-edge X-ray absorption near-edge structure spectroscopy and sequential fractionation at 56 DAF. Porewater DRP increased with DAF and correlated negatively with pe+pH and positively with dissolved Fe. Reductive dissolution of Fe-associated P was the dominant mechanism of flooding-induced P release. The MnO2 amendment reduced porewater DRP by 30%–50% by favoring calcium phosphates (Ca–P) precipitation and delaying the reductive dissolution reactions. In three soils, the zeolite amendment at some DAF increased porewater and/or floodwater DRP through dissolution of Ca–P and thus was not effective in reducing P release from flooded soils.

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“…In this study, the results showed that irrigation and nitrogen application significantly affected the total nitrogen, available phosphorus, available potassium, and nitrate-nitrogen contents. Some studies have shown that the soil water conditions significantly impact the absorption, leaching, and loss of nutrients [50,51]. The fertilizer utilization rate is directly proportional to the water supply when the soil water supply conditions are within a certain range, and the fertilizer efficiency decreases when the water content exceeds a certain limit.…”

Section: Effects Of Irrigation On Soil Nutrientsmentioning

confidence: 99%

Effects of Irrigation and Nitrogen Application on Soil Nutrients in Triploid Populus tomentosa Stands

Runzhe

Huang

Hao

et al. 2022

Forests

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Irrigation and nitrogen application directly affect the availability and distribution of soil nutrients. Understanding the response of soil nutrients to long-term water–fertilizer coupling conditions is helpful to improve the management and use efficiency. Irrigation was divided into three gradient levels, which accounted for 45%, 60%, and 75% (W1, W2, and W3) of the field water holding capacity. Based on pure nitrogen, four levels of nitrogen application were set: 0.0, 101.6, 203.2, and 304.8 kg·hm−2 (N0, N1, N2, and N3). We measured tree height and diameter at breast height (DBH), and we analyzed the chemical properties of the soil at 0–40 cm depth, from 2007 to 2020. The ranges of DBH, tree height, individual volume, and stand volume were 5.80–25.25 cm, 6.10–16.47 m, 0.01–0.37 m3, and 11.76–481.47 m3·hm−2, respectively. The contents of organic matter, total nitrogen, available phosphorus, and available potassium in the soil ranged from 8.60 g·kg−1 to 18.72 g·kg−1, from 0.21 g·kg−1 to 0.79 g·kg−1, from 8.09 mg·kg−1 to 47.05 mg·kg−1, and from 90 mg·kg−1 to 322 mg·kg−1, respectively. Soil pH value decreased rapidly at a rate of 0.31 units per year for the first five years. Irrigation and nitrogen application, and their interaction, had significant (p < 0.01) effects on soil total nitrogen, available phosphorus, available potassium, and nitrate-nitrogen. We suggest maintaining the field water holding capacity above 60%, with a nitrogen application rate of 203.2 kg·hm−2, to save water, maintain soil fertility, and optimize soil nitrogen supply. Our study aimed to achieve scientific and accurate fertilization of Populus tomentosa stands over different periods, to alleviate the decline of soil fertility, and to improve the utilization rate of water and fertilizer through long-term nutrient monitoring.

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The effects of irrigation and fertilization on the migration and transformation processes of main chemical components in the soil profile

Cited by 15 publications

References 55 publications

Association between maternal exposure to chemical fertilizer and the risk of birth defects in a rural population in northern China: a population-based study

Association between maternal exposure to chemical fertilizer and the risk of birth defects in a rural population in northern China: a population-based study

Phosphorus Release and Speciation in Manganese(IV) Oxide and Zeolite-Amended Flooded Soils

Effects of Irrigation and Nitrogen Application on Soil Nutrients in Triploid Populus tomentosa Stands

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