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首页> 外文会议>2004 CIGR International Conference : Collection of Extent Abstracts >The Influence of Temperature, PH Value and C/N Ratioon the Growth and Survival of Earthworm in MunicipalSolid Waste
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The Influence of Temperature, PH Value and C/N Ratioon the Growth and Survival of Earthworm in MunicipalSolid Waste

机译：温度，PH值和C / N比对生活垃圾中worm生长和存活的影响

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Earthworms can be used to deal with solid organic waste[1][2]. Many studies on the effect oftemperature, moisture, PH value on the growth, fecundity and survival of earthworm in manure. Thestudy of the influence of the similar parameters is presented in this paper.The growth and mortality of earthworm in municipal solid waste with different temperature (15 °C, 20 °C,25 °C) were studied for 70 days, different PH value (5.1, 5.4, 6.5, 7.2, 8.6) were studied for one dayand repeated three times, and different C/N ratio (26, 24, 22, 20, 17, 15) were studied for 15 days andrepeated twice. The object of this study is Eisenia fetida, and the raw material is mainly come fromChina Agricultural University including leftover, vegetable, leaves and so on.The following conclusions have been derived:1. Earthworm growth correlations were found to be like S shape in different temperature andfound that the shortest growth period is 52d at 25 °C, the largest growth rate is 0.0138 g per day.2. A correlation between the growth rate and feed-conversion rate was determined, the largestweight-gain rate and feed-conversion rate at 19.7 °C and 21.9 °C can be 0.0459 g/g per day, 0.429 g/gper day respectively.3. The appropriate PH value is 6.5～8.6. The earthworm number decreased obviously if PH valueexceeds this range.4. The material conversion rate is largest when C/N ratio is 20 and in 20 °C.5. According to PH value and C/N ratio, the optimal ferment period of municipal solid waste is 18 days,it can satisfy the need of worms.
机译：can可用于处理固体有机废物 [1] [2] 。关于止血效果的许多研究 温度，湿度，PH值对man在粪肥中的生长，繁殖力和存活率的影响。这 本文介绍了对相似参数的影响的研究。 temperature在不同温度（15°C，20°C， 在25°C下进行了70天的研究，对不同的PH值（5.1、5.4、6.5、7.2、8.6）进行了一天的研究 并重复3次，研究了不同的C / N比（26、24、22、20、17、15）持续15天， 重复两次。这项研究的对象是埃塞尼亚fetida，其原料主要来自 中国农业大学包括剩菜，蔬菜，树叶等。 得出以下结论： 1.发现worm的生长相关性在不同温度和温度下呈S形。 发现在25°C下最短的生长期是52d，最大的生长速率是每天0.0138 g。 2.确定了生长率和饲料转化率之间的相关性，最大 19.7°C和21.9°C时的增重率和进料转化率可以为每天0.0459 g / g，0.429 g / g 每天。 3.合适的PH值为6.5〜8.6。 PH值使数明显减少 超出此范围。 4.当C / N比为20且在20°C时，材料转化率最大。 5.根据PH值和C / N比，城市固体废物的最佳发酵期为18天， 它可以满足蠕虫的需求。

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