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首页> 外文期刊>Journal of soil & sediments >Additional application of aluminum sulfate with different fertilizers ameliorates saline-sodic soil of Songnen Plain in Northeast China
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Additional application of aluminum sulfate with different fertilizers ameliorates saline-sodic soil of Songnen Plain in Northeast China

机译：硫酸铝与不同肥料的配合施用可改善东北松嫩平原盐碱土壤

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摘要

Purpose Serious soil salinization, including excessive exchangeable sodium and high pH, significantly decreases land productivity. Reducing salinity and preventing alkalization in saline-sodic soils by comprehensive improvement practices are urgently required. The combinations of aluminum sulfate with different types of fertilizer at different rates were applied on rice paddy with saline-sodic soils of the Songnen Plain in Northeast China to improve soil quality and its future utilization. Materials and methods Experiments were carried out in a completely randomized block design. Twelve treatments with aluminum sulfate at the rates of 0, 250, 500, and 750 kg hm(-2) with inorganic, bio-organic, and organic-inorganic compound fertilizers were performed. Soil pH, electronic conductivity (EC), cation exchangeable capacity (CEC), exchangeable sodium percentage (ESP), total alkalinity, sodium adsorption ratio (SAR), soil organic carbon (SOC), available nutrients, soluble ions, rice growth, and yield in the saline-sodic soils were measured across all treatments. The relationships among the measured soil attributes were determined using one-way analysis of variance, correlation analysis, and systematic cluster analysis. Results and discussion The pH, EC, ESP, total alkalinity, SAR, Na+, CO32-, and HCO3- in saline-sodic soil were significantly decreased, while CEC, SOC, available nitrogen (AN), available phosphorus (AP), available potassium (AK), K+, and SO42- were significantly increased due to the combined application of aluminum sulfate with fertilizer compared with the fertilizer alone. The most effective treatment in reducing salinity and preventing alkalization was aluminum sulfate at a rate of 500 kg hm(-2) with organic-inorganic compound fertilizer. This treatment significantly decreased the soil pH, EC, ESP, total alkalinity, SAR, Na+, and HCO3- by 5.3%, 28.9%, 41.1%, 39.3%, 22.4%, 23.5%, and 35.9%, but increased CEC, SOC, AN, AP, AK, K+, SO42-, rice height, seed setting rate, 1000-grain weight, and yield by 77.5%, 115.5%, 106.3%, 47.1%, 43.3%, 200%, 40%, 6.2%, 43.9%, 20.3%, and 42.2%, respectively, compared with CK treatment in the leaching layer. Conclusions The combined application by aluminum sulfate at a rate of 500 kg hm(-2) with organic-inorganic compound fertilizer is an effective amendment of saline-sodic soils in Songnen Plain, Northeast China. These results are likely related to the leaching of Na+ from the soil leaching layer to the salt accumulation layer and desalination in the surface soil, and the increase of SOC improved the colloidal properties and increased fertilizer retention in soil. In addition, the environmental impact of aluminum sulfate applied to soil needs to be further studied.
机译：目的严重的土壤盐碱化，包括过多的可交换钠和高pH值，会大大降低土地生产力。迫切需要通过综合改良措施来降低盐碱土壤中的盐度并防止碱化。在东北松嫩平原含盐碱土壤的水稻田上施用硫酸铝与不同类型肥料的组合，以提高土壤质量和未来利用。材料和方法实验是在完全随机的区组设计中进行的。用无机，生物有机和有机无机复合肥料分别以0、250、500和750 kg hm（-2）的硫酸铝处理十二次。土壤pH，电导率（EC），阳离子交换容量（CEC），可交换钠百分比（ESP），总碱度，钠吸附率（SAR），土壤有机碳（SOC），有效养分，可溶性离子，水稻生长和在所有处理中都测量了盐碱土壤的产量。使用方差的单向分析，相关性分析和系统聚类分析来确定测得的土壤属性之间的关系。结果与讨论盐碱土壤中的pH，EC，ESP，总碱度，SAR，Na +，CO32-和HCO3-显着降低，而CEC，SOC，有效氮（AN），有效磷（AP），有效与单独使用肥料相比，由于硫酸铝与肥料的组合施用，钾（AK），K +和SO42-显着增加。降低盐度和防止碱化的最有效方法是用有机无机复合肥以500 kg hm（-2）的速率施用硫酸铝。这种处理显着降低了土壤pH，EC，ESP，总碱度，SAR，Na +和HCO3- 5.3％，28.9％，41.1％，39.3％，22.4％，23.5％和35.9％，但增加了CEC，SOC ，AN，AP，AK，K +，SO42-，水稻高度，结实率，1000粒重以及增产77.5％，115.5％，106.3％，47.1％，43.3％，200％，40％，6.2％与浸出层中的CK处理相比，分别为43.9％，20.3％和42.2％。结论硫酸铝以500 kg hm（-2）的比例与有机无机复合肥联合施用是对东北松嫩平原盐碱土壤的有效改良。这些结果可能与Na +从土壤浸出层到盐分累积层的浸出以及表层土壤的脱盐有关，SOC的增加改善了土壤的胶体性质和肥料的保留。另外，硫酸铝对土壤的环境影响需要进一步研究。

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  • 来源
    《Journal of soil & sediments》 |2019年第10期|3521-3533|共13页
  • 作者

    Zhou Meng; Liu Xiaobing; Meng Qingfeng; Zeng Xiannan; Zhang Jizhou; Li Dawei; Wang Jie; Du Weiling; Ma Xianfa;

  • 作者单位

    Northeast Agr Univ Coll Resources & Environm Harbin 150030 Heilongjiang Peoples R China|Chinese Acad Sci Northeast Inst Geog & Agroecol Harbin 150081 Heilongjiang Peoples R China|Harbin Acad Agr Sci Dept Biol Ctr Harbin 150028 Heilongjiang Peoples R China;

    Northeast Agr Univ Coll Resources & Environm Harbin 150030 Heilongjiang Peoples R China|Chinese Acad Sci Northeast Inst Geog & Agroecol Harbin 150081 Heilongjiang Peoples R China;

    Northeast Agr Univ Coll Resources & Environm Harbin 150030 Heilongjiang Peoples R China;

    Heilongjiang Acad Agr Sci Inst Crop Cultivat & Tillage Harbin 150086 Heilongjiang Peoples R China;

    Heilongjiang Acad Sci Inst Nat Resources & Ecol Harbin 150040 Heilongjiang Peoples R China;

    Harbin Acad Agr Sci Dept Biol Ctr Harbin 150028 Heilongjiang Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Alkalization prevention; Aluminum sulfate; Fertilizer; Saline-sodic soils; Salinity reduction;

    机译：防止碱化;硫酸铝;肥料;盐碱土;盐度降低;

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