复合菌剂对樟树苗移栽生长及圃地土壤的影响

Effect of Composite Microbial Agents on Transplant of Cinnamomum camphora Seedings and Nursery Soil

为了研究复合菌剂对樟树苗移栽生长的影响,对樟树苗移栽进行了施用复合菌剂和未施用复合菌剂的对比试验。结果表明,施用复合菌剂后,移栽苗的成活率高于对照组30.0%;平均苗高高于对照组12.71%;移栽苗体内N、P、K、Na、Ca、Mg元素含量分别高于对照组28.81%、12.75%、12.04%、19.63%、16.86%、23.64%;可溶性糖、叶绿素、脯氨酸含量分别高于对照组8.85%、11.13%、10.45%;施用菌剂的土壤速效氮、速效磷、速效钾分别比对照提高了29.11%、118.31%和11.79%,DOC、MBC含量明显提高,呼吸作用增强;研究结果说明复合菌剂可以提高土壤速效N、P、K含量,同时有益于樟树苗对营养元素的吸收及主要元素和重要化合物的积累,促进樟树苗移栽后的生长发育。

In order to study the effect of composite microbial agents on transplant and growth of Cinnamomum camphora seedings, we conducted a comparative test--with and without composite microbial agents in transplanting C. camphora. The results showed that the survival rate of plants in the test group was 30.0% higher than those in the control group. The height increment was 12.71% higher than those in the control group. The contents of N, P, K, Na, Ca, Mg were 28.81%, 12.75%, 12.04%, 19.63%, 16.86%, 23.64% higher than those in the control group. Meanwhile the contents of soluble sugar, chlorophyll and proline were increased by 8.85%, 11.13% and 10.45%. Available nitrogen, available phosphorus, available potassium of the soil with composite microbial agents were increased by 29.11%, 118.31% and 11.79%, DOC and MBC content significantly increased, the respiration enhanced. It was proved that composite microbial agents could improve the content of soil available N, P and K, and also be beneficial to the accumulation and absorption of nutrient elements, the main elements and compounds of C. camphora, and promote the development of the growth of C. camphora seedlings after transplanting.