Effects of Lactic Acid Bacteria Fertilizer on Soil Microorganisms under Different Salt Stress
Wang Weihua
Zhao Jinshan
Liu Huawei
Li Haimei
Zou Xiaoxia
Abstract：To explore the effects of lactic acid bacteria fertilizer on soil microorganisms under different salt stress and provide references for the improvement of saline-alkaline soil, according to the soil salinization classification standard, the treatments with lactic acid bacteria and blank control(CK) were conducted respectively under normal salinity (0. 8 g /kg), low salinity (1. 9 g /kg), moderate salinity (2. 7 g /kg) and heavy salinity (4. 7 g /kg). The number of bacteria, actinomyces and fungi in soil were detected in the experiment. The results showed that the number of soil bacteria with lactic acid bacteria fertilizer treatment had no significant difference with that of CK under low salinity, but extremely significantly increased under normal, moderate and heavy salinity, and increased by 213. 3％, 132. 6％ and 144. 4％ compared with CK. The number of actinomycetes under lactic acid bacteria fertilizer treatment increased significantly under different salinity, which increased by 126. 3％, 82. 7％, 125. 9％ and 119. 4％ respectively under normal, low, moderate and heavy salinity compared with CK. Under normal and low salinity, the number of fungi with lactic acid bacteria fertilizer treatment increased significantly, which increased by 103. 2％ and 31. 2％ respectively compared with CK, but the differences were not significant between moderate and heavy salinity stress. In conclusion, lactic acid bacteria fertilizer improved the activities of soil microorganisms under salt stress, and the results provided the bases for the development, utilization and improvement of saline-alkaline soil.
Keywords：Lactic acid bacteria fertilizerSalt stressSoil microorganism
Publication Date：2018-04-02
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 48-51 )