Effects of Calcium Concentrations on the Microbial Biomass in the Rhizosphere Soil of Aloe Saponaria Haw
Taking Aloe saponaria Haw as the research subject,this study investigated and analyzed the impact of different calcium supplies on the microbial biomass of the soil around Aloe saponaria by irrigating it with modified Hoagland nutritional solution of different Ca2+concentrations and measuring the carbon and nitrogen content in soil microbial biomass.The results showed that treated with a Ca2+concentration of 11 mmol/L,Aloe saponaria got the maximum biomass in its leaves and reproductive organs like pedicels and seeds,as well as the root system.The highest carbon and nitrogen content was found in soil microbial biomass with a Ca2+concentration of 13 mmol/L.The content of carbon and nitrogen had a weak polynomial relationship with the primary biomass of leaves,reproductive organs,roots and plants of A.saponaria respectively.The concentration of Ca2+,Aloe saponaria,and their interaction had a significant impact on the carbon and nitrogen content.The leaves,reproductive organs,roots,total biomass of Aloe saponaria and the content and transformation rate of active organic carbon had a significant linear correlation with the content of carbon and nitrogen in soil microbial biomass respectively.
万方数据
维普
