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通过盆栽试验,研究了固氮菌、溶磷菌、纤维素降解菌与有机肥混合施用对蔬菜株高、生物量和土壤有机质、氮、磷、钾、pH值以及过氧化氢酶、脲酶、蔗糖酶、纤维素酶活性的影响。结果表明:功能菌与有机肥混施,明显促进蔬菜生长。施用两种以上功能菌,可显著增加蔬菜株高,第二茬效果更明显;单施有机肥、功能菌与有机肥混施,可提高蔬菜生物量27.6%~85.7%;与单施有机肥比较,单一功能菌施用,蔬菜生物量没有差异,两种以上功能菌施用,可提高蔬菜生物量16.9%~45.5%,第一茬增加更显著。固氮菌、溶磷菌和纤维素降解菌同时与有机肥混施的效果最好。功能菌施用在一定程度上可降低赤红壤的酸度,施用两种以上功能菌能显著提高土壤pH值、碱解氮。与单施有机肥比较,单一功能菌施用,土壤全氮、有效磷和速效钾没有显著差异;两种以上功能菌施用,均能在一定程度上提高土壤脲酶、蔗糖酶、纤维素酶的活性,但降低过氧化氢酶活性。因此,建议施用添加有多种功能菌的生物有机肥,改良肥力低的赤红壤,促进作物生长。
Pot experiment was conducted to study the effects of nitrogen fixing bacteria, phosphate solubilizing bacteria, cellulose degrading bacteria and organic manure on plant height, biomass and soil organic matter, nitrogen, phosphorus, potassium, pH, catalase, urease, Effect of enzymes, cellulase activity. The results showed that the combination of functional bacteria and organic fertilizer significantly promoted the growth of vegetables. Application of more than two kinds of fungi can significantly increase the plant height of vegetables, the second stubble effect is more obvious; single application of organic manure, fungi and organic fertilizer mixed Shi, can improve the biomass of vegetables 27.6% ~ 85.7%; and single application of organic fertilizer Compared with single functional bacteria, there was no difference in the biomass of vegetables. The application of two or more functional bacteria could increase the biomass of vegetables by 16.9% ~ 45.5%, and the first crop increased more significantly. Azotobacter, phosphate-solubilizing bacteria and cellulose-degrading bacteria at the same time mixed with organic fertilizer best. Functional bacteria can reduce the acidity of latosolic red soil to a certain extent. The application of more than two kinds of fungi can significantly increase the soil pH and hydrolyze nitrogen. Compared with the single application of organic fertilizer, the application of single functional bacteria had no significant difference in soil total nitrogen, available phosphorus and available potassium. When two or more functional bacteria were used, the activity of soil urease, invertase and cellulase could be increased to a certain extent , But reduce catalase activity. Therefore, it is advisable to apply bio-organic fertilizer supplemented with various fungi, to improve red soil with low fertility and to promote crop growth.