不同茶园土壤微生物数量状况调查初报

调查了全省14个茶场17块茶园土壤微生物的数量状况，结果表明：茶园土壤微生物总数为每克于土1000万个以上，多的达到5800多万个，远较一般农田和旱土的土壤微生物数量大。三大类群微生物中以细菌数量最多，约占总数的90％左右，其次是放线菌，最少的是真菌。凡土层深厚、土质疏松、物理性能较好、有效养分较丰富的茶园，土壤中微生物总量也较高。

Investigation on the Quantitative Condition of Soil Microbes in Different Tea Garden

The quantitative condition of soil microbes of 14 tea plantations and 17 tea gardens in Hunan province was investigated, results showed that the sum total of soil microbes in tea garden is more than 10 000 000 per gram dry soil, the most reach over 58 000 000, much more than those in the common farmland and dry land. Among three groups of microbes the quantity of bacteria is most, about 90 percent of the sum total, the second is actinomyces, the least is fungus. Wherever the tea gardens with deep soil level, loose soil quality, good physical function and abundant effective nutrient, the total amount of soil microbes is also large.