Acta Agriculturae Boreali-Sinica ›› 2022, Vol. 37 ›› Issue (2): 142-151. doi: 10.7668/hbnxb.20192705

Special Issue: Soil fertilizer Saline-alkali stress Animal husbandry

• Resources & Environment·Plant Protection • Previous Articles     Next Articles

Desalinization Effects of Long-term Cattle Manure Application in Saline-sodic Soils on the Songnen Plain

WANG Yong, MENG Qingfeng   

  1. College of Resources and Environment,Northeast Agricultural University,Harbin 150030,China
  • Received:2021-12-22 Published:2022-04-28


In order to explore the effects of cattle manure on soil salinity and sodicity on the sodic soil in long-term experiments,the experiments were performed in a randomized complete block design with four treatments;soils that received manure applications for 8,12,18 years were used as the experimental treatments,and soil that did not receive cattle manure application was used as the control treatment(CK).The results showed that the application of cattle manure to saline-sodic soil resulted in a reduction in the bicarbonate ion(HCO3-)contents,the elimination of carbonate ions(CO32-),the decrease in soil bulk density(ρb),the increases in soil porosity(ft)and soil organic matter(SOM),the decreases in the exchangeable and soluble sodium ion (Na+)contents associated with increases in the exchangeable calcium ion(Ca2+),soluble potassium ion(K+),and magnesium ion(Mg2+)contents compared to those in untreated soil.The soil exchangeable sodium percentage(ESP)and pH were both significantly and positively correlated with the exchangeable Na+ and HCO3-,and CO32- contents,and soil pH was significantly and negatively correlated with SOM.Regression analysis showed that the dominant factors affecting the sodium absorption ratio(SAR)were the soluble Mg2+ and Na+ contents in the soil.Pearson correlation analysis showed that there were significantly negative correlation between the accumulated amount of cattle manure among the indicators of soil salinization degree,such as pH,EC,ESP and SAR.It was concluded that long-term manure application significantly decreased the soil pH,ESP,electrical conductivity(EC)and SAR due to the replacement of soil colloidal Na+ with Ca2+,the leaching of soil soluble salts from the topsoil and changes in the soil soluble salt ion composition.These outcomes were likely due to the decrease of ρb associated with increase of ft and Ca2+ and Mg2+ contents caused by annual manure application.

Key words: Cattle manure, Long-term experimentation, Solonetz, Exchangeable cations, Soluble salt, Soil sodicity

Cite this article

WANG Yong, MENG Qingfeng. Desalinization Effects of Long-term Cattle Manure Application in Saline-sodic Soils on the Songnen Plain[J]. Acta Agriculturae Boreali-Sinica, 2022, 37(2): 142-151. doi: 10.7668/hbnxb.20192705.

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