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以处理后的番茄土样为试材,设置增氧和不增氧2种处理,增氧的处理方式为对盆栽灌溉5‰的双氧水,不增氧处理方式则为灌溉煮沸冷却后的水。分别对以上2种处理灌溉不同水量,获得土壤含水量分别为50%~55%、65%~70%、80%~85%的土样,用稀释涂布法测土壤中的微生物量。结果表明:在不增氧处理中,土壤含水量在50%~55%时细菌和放线菌有最大微生物量,土壤含水量为80%~85%时,真菌有最大微生物量;增氧处理中,放线菌在土壤含水量在50%~55%时有最大微生物量。在不同的含水量下,不增氧处理中的土壤微生物量都比增氧处理的土壤微生物量大;在增氧处理中,不同含水量下细菌和真菌变化不大,放线菌的量最大。
The treated tomato soil samples were used as test materials to set up two kinds of treatments, aerobic and non-aerobic treatments. The treatments of aerobic treatment were 5 ‰ hydrogen peroxide for pots and no boiled water for cooling without irrigation. The above two treatments were irrigated with different amounts of water to obtain soil samples with soil moisture content of 50% -55%, 65% -70% and 80% -85%, respectively. The amount of soil microbial biomass was measured by dilution coating. The results showed that when the soil moisture content was between 50% and 55%, the maximum amount of bacteria and actinomycetes in the soil without water-oxygen treatment and the maximum amount of soil microbial biomass in the soil with water content of 80% -85% Actinomyces in the soil moisture content of 50% to 55% of the maximum microbial biomass. Under different water contents, the amount of soil microbial biomass was higher than that under aerobic treatment without aeration. In aerobic treatment, bacteria and fungi did not change much under different water contents, and the amount of actinomycetes was the largest .