Bio-Organic Fertilizer Combined with Different Amendments Improves Nutrient Enhancement and Salt Leaching in Saline Soil: A Soil Column Experiment
文献类型： 外文期刊
作者： Xiao, Meng 1 ; Liu, Guangming 2 ; Jiang, Shengguo 3 ; Guan, Xuewei 1 ; Chen, Jinlin 1 ; Yao, Rongjiang 2 ; Wang, Xiuping 4 ;
作者机构： 1.Nanjing Forestry Univ, Co Innovat Ctr Sustainable Forestry Southern China, Sch Forestry, Nanjing 210037, Peoples R China
2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China
3.Tianjin North China Geol Explorat Bur, Tianjin 300170, Peoples R China
4.Hebei Acad Agr & Forestry Sci, Inst Coast Agr, Caofeidian 063200, Peoples R China
关键词： coastal saline soil; organic fertilizer; organic amendment; soil nutrient content; water and salt migration; desalinization rate
期刊名称：WATER （ 影响因子：3.53； 五年影响因子：3.628 ）
ISSN：
年卷期： 2022 年 14 卷 24 期
页码：
收录情况： SCI
摘要： Salt-affected soils frequently experience leaching and desalination issues, which severely restrict plant growth and water uptake. Hence, in this experiment, four treatments including CG (no amendments addition); OF (organic fertilizer addition); OH (organic fertilizer and Hekang amendment addition); and OB (organic fertilizer and fulvic acid addition) were designed to examine the effect of organic amendment on soil chemical properties, water and salt transport, and soil desalination laws of coastal saline soil. The results showed that the addition of organic amendments significantly reduced soil pH (8.47-8.52) and salt content (2.06-2.34 g kg(-1)), while increasing soil organic matter content, available phosphorus, and available potassium. OH treatment has a higher available phosphorus content than other treatments. OH and OB treatments elevated the soil desalination ratio (32.95% and 32.12%, respectively) by raising the leaching volume and leaching rate. Organic amendments significantly promoted Na+ (4.5-32%) and SO42- (12-27%) leaching compared to CG. Organic treatments, particularly OB treatment, not only increased the content of soil organic matter and available nutrients but also promoted salt ion leaching, improved soil permeability and increased soil desalination and water leaching rates. Our results may provide a theoretical basis for revealing the desalination law of coastal saline soil.
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