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采用温室盆栽的方法,探讨了不同化肥和小麦根系活动对土壤微生物和土壤酶活性的影响。结果表明:不种小麦条件下,施氮磷钾处理显著增加了土壤真菌数量,增幅为47.0%;不同肥料均显著增加了土壤脲酶活性和土壤磷酸酶活性,增幅为17.2%～32.7%和21.2%～25.9%。种植小麦条件下,根系活动极显著促进了土壤微生物数量、土壤脲酶和土壤磷酸酶活性的增加,增幅分别为39.0%、302%和38.5%;根系活动与肥料耦合增加土壤微生物数量,增幅为3.3%～31.4%。小麦和肥料耦合显著增加土壤脲酶和磷酸酶活性,增幅为59.0%～168%和15.2%～26.7%。磷酸酶活性、细菌数量、真菌数量与小麦根生物量、地上生物量呈显著正相关。
The effects of different fertilizers and wheat root activities on the activities of soil microorganisms and soil enzymes were discussed using greenhouse potted plants. The results showed that under the condition of no wheat, NPK treatment increased the number of soil fungi significantly by 47.0%, and different fertilizers increased soil urease activity and soil phosphatase activity by 17.2% -32.7% and 21.2% respectively % ~ 25.9%. Under the conditions of wheat cultivation, the root activities significantly promoted the increase of soil microbial quantity, soil urease and soil phosphatase activity by 39.0%, 302% and 38.5%, respectively. Coupling of root activity and fertilizer increased the number of soil microorganisms by 3.3 % ~ 31.4%. Wheat and fertilizer coupling significantly increased soil urease and phosphatase activities, an increase of 59.0% ~ 168% and 15.2% ~ 26.7%. Phosphatase activity, number of bacteria, number of fungi and wheat root biomass, aboveground biomass were significantly positively correlated.