Effects of Bio-fungus Water-Soluble Fertilizers on Soil Microorganism,Soil Enzyme Activity,Yield and Quality of Radish

Song Yiling; Yu Jian; Xiao Chengze; Chen Shigeng; Li Yuhuan; Su Xiurong; Ding Fangjun

doi:10.14083/j.issn.1001-4942.2017.11.014

Abstract：The effects of different dosages of rooting type and intumescence type bio-fungus water-soluble fertilizer on radish growth,soil microbial biomass,soil enzyme activity and soil nutrient content were investigated by pot experiment.The results showed that topdressing the bio-fungus water-soluble fertilizers could improve the content of photosynthetic pigment and net photosynthetic rate of radish leaves.Compared with only applying inorganic fertilizer,the economic yield of radish was significantly increased by 11.07％～12.65％ and 26.88％～46.64％ with rooting type and intumescence type bio-fungus water-soluble fertilizer respectively.Meanwhile,they increased the contents of vitamin C,soluble protein and soluble sugar of radish.In addition,the bio-fungus water-soluble fertilizers increased the number of rhizosphere soil bacteria and actinomycetes,and decreased the number of fungi.The number of bacteria increased with the increase of bio-fungus water-soluble fertilizer application rate,and the change trend of fungi was opposite,while the variation of actinomycetes was related to the type of fertilizer,what's more,the effect of intumescence type bio-fungus water-soluble fertilizer was more obvious than that of rooting type.The soil catalase,phosphatase and sucrase activity increased with the increase of bio-fungus water-soluble fertilizer application rate,however,the soil urease and dehydrogenase activity decreased.The contents of available N,P,K and organic matter in soil were improved with the increase of bio-fungus water-soluble fertilizer application rate.It was concluded that bio-fungus water-soluble fertilizer could improve soil environment,increase crop yield and quality.