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优化化肥料的使用,以减少源盐和离子的流失排放从苏打盐酸-的田

Xinyi Wang¹, Hui Zhu², Bin Wang³

¹State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin 130102, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.

Journal of environmental management

|June 18, 2024

概括

有机-无机化合物肥料 (OCF) 有效地减少了盐和离子在盐-土中的流失. 这项研究表明,OCF和无机化合物肥料 (ICF) 减轻了离子排放,改善了米种植的土壤质量.

科学领域:

环境科学环境科学
土壤科学土壤科学
农业化学农业化学

背景情况:

米种植可以改善苏打盐酸-性土壤,但会增加盐和离子流失.
不同的 (N) 肥料对这些土壤中离子流失的影响尚不清楚.

研究的目的:

研究五种常见的N型肥料在水生长季节对盐和离子流失的影响.
确定N-肥料策略,以减轻盐-米田中的离子排放.

主要方法:

在整个大米生长季节进行了五次N-肥料处理和控制 (CK) 的实地实验.
监测盐离子和化物 (F-) 离子流水排放.
分析离子度,包括 (Na+),二碳酸盐 (HCO3-) 和F-,以及它们与肥料类型和排水事件的关系.

主要成果:

N型肥料类型,排水事件及其相互作用显著影响了盐和F离子排水 (p < 0.001).
(Na+) 和碳酸 (HCO3-) 是流水中的主要离子,分别占排放总量的20.55-25.06%和47.57-50.49%.
与CK和其他处理方法相比,有机无机化合物肥料 (OCF) 显著减少了Na+和HCO3-流失,减少了HCO3-和F-之间的竞争性吸附 (p <0.05).
OCF和无机化合物肥料 (ICF) 降低了流失的pH值,减少了化溶解和F-流失.

结论:

OCF有效地减轻了盐和F离子在盐-米田中的流失.
此外,ICF在控制F-流水排放方面也显示出潜力.

关键词:

化物离子是化物离子.化肥是一种化肥.流水排放的排放情况苏打盐酸-的田是一个大米田.可溶盐离子可溶盐离子

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