Excessive use of synthetic fertilizer leaves soil devoid of adequate microbial populations.
化肥的过量使用，使得土壤缺乏足够的微生物种群。
In the spring and one bud two leaves and soil as raw materials, effects of different fertilization treatments on the microbial populations tea and tea quality were studied.
以一芽两叶春茶和土壤为原料，研究了不同施肥处理对茶园微生物种群和茶叶品质的影响。
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