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目的:为制定合理的茶园土壤培肥制度,促进上壤良性生态循环。方法:设CK,QY,DW,DY,SW,SY六个处理,研究不同培肥措施下微生物量碳的动态变化以及不同处理对微生物量碳的影响。结果:从全年动态变化来看微生物量碳呈“低-高-低”的变化趋势,QY、DW、DY、SW、SY各处理微生物量碳年平均值分别比CK高出34%、67%、53%、81%、79%;施有机肥与无机肥两个因素之间交互作用无统计学显著差异,施有机肥微生物量碳略高于施无机肥;不同月份之间和不同耕作措施之间交互效应有统计学显著差异,不同月份之间和不同耕作措施间均有统计学显著差异,微生物量含量按月份变化由高到低依次为:10月>8月>6月>4月>12月;不同耕作措施之间由高到低依次为间作三叶草>稻草覆盖>清耕。结论:结合基本统计量输出结果,间作三叶草配合施有机肥培肥效应最好。
Objective: To develop a reasonable fertilizing system in the tea garden so as to promote the virtuous ecological cycle of the soil. Methods: Six treatments, CK, QY, DW, DY, SW and SY, were conducted to study the dynamic changes of microbial biomass carbon under different fertilization practices and the effects of different treatments on microbial biomass carbon. Results: According to the annual dynamic changes, the microbial biomass carbon showed the trend of “low-high-low”, and the annual mean values of microbial biomass QY, DW, DY, SW and SY were 34% , 67%, 53%, 81% and 79%, respectively. There was no significant difference in the interaction between organic and inorganic fertilizers, and the microbial biomass carbon of applied organic fertilizer was slightly higher than that of inorganic fertilizers. The interaction effects of different tillage measures were statistically significant differences between different months and different tillage measures were statistically significant differences in microbial biomass content from month to month changes from high to low were: October> August> June > April> December. The order of tillage between different tillage measures was intercropping clover> straw covering> tilling cultivation. Conclusion: Based on the output of basic statistics, the effect of intercropping clover with organic manure is the best.