Effects Of Chaetomium Globosum ND35 Fungal Fertilizer On Continuous Cropping Soil Microorganism And Malus Hupehensis Rehd. Seedling Biomass

Effects of Chaetomium globosum ND35 fungal fertilizer on the replanted soil environment and Malus hupehensis Rehd. seedings biomass were investigated in pot experiments in November 2012 to December 2014. The experiment involved three treatments, including a control, the fungus chaff fertilizered into the soil which is carrier fungus chaff of Chaetomium globosum and Chaetomium globosum ND35 fungal fertilizer, a mixture of fungus chaff and strains, fertilizered into the soil with the concentration of 2%. The results of the study were as follows:1、The fungus chaff and C haetomium globosum ND35 fungal fertilizer application to replant soil significantly enhanced the dry and fresh weight of the seedlings and the root activity compared with the control. And Chaetomium globosum ND35 fungal fertilizer increased in dry and fresh weight by 71.6% and 71.9% in July, 126.6% and 72.2% in Auguest, 153.1% and 155.9% in September than the control, respectively. The effects are more obvious in September.The root activity of Malus hupehensis Rehd. increased by 59.0%, 50.2% and 20.2%, respectively in July, August and September.2、As the extension of the treating time, the quantities of soil bacteria and actinomycete were increased, and reached peak in September. Chaetomium globosum ND35 fungal fertilizer had a stronger effect. Compared with control, the quantity of soil bacteria in July, August and September increased by 245.9%, 89.1% and 216.3%, respectively. The quantity of soil actinomycete increased by 68.7%, 124.7% and 131.1% respectively.3、Both of the two treatments increased the activity of soil enzymes which increased with a subsequent decrease initially, and was the highest in August. The fungal fertilizer showed a significant increase to soil enzymes. Compared with control, urease activity of the fungal fertilizer soil increased by 245.9%, 89.1% and 216.3% in July, August and September respectively.4、The continuous cropping soil contained high root skin glycosides, The fungal fertilizer fertilizered into the soil significantly decreased root skin glycoside content in the soil, reduced by 16.7%, 57.5% and 59.2% respectively. The content of total phenolic acids increased as the growth of the continuous cropping time. But fungal fertilizer fertilizered significantly decreased phenolic acids content in the soil, reduced by 23.0%, 40.7% and 41.2% respectively compared with the control.