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作 者 ：陈同斌,高定,李新波

期 刊 ：生态学报 2002年 22卷 6期 页码：802~807

关键词：VA菌根真菌；红三叶草；不同磷源；有机磷；

Keywords:sewage sludge, planting substrate, available nutrient, wilting point, water retention ability,

摘 要 ：盆栽试验表明 ,城市污泥堆肥不仅可以明显提高栽培基质的有效氮、磷含量 ,而且可以增强栽培基质的保水性能和植物的抗旱能力 ,但是栽培基质的萎焉点也随着其用量的增加而增高。因此 ,从保证植物水分供应的角度考虑 ,虽然可以大量地使用城市污泥堆肥 ,但是其用量并不是越多越好 ;当用量超过 75 %时 ,继续增加城市污泥堆肥的比例 ,则植物的吸水能力反而会略有下降。从养分供应和保水性能等角度综合考虑 ,采用经过堆肥化处理的城市污泥作为植物栽培基质 ,是城市污泥资源化和无害化的可行途径。

Abstract:Sewage sludge compost is a kind of excellent fertilizer due to its abundant nutrition and organic matter. After composting, the sewage sludge could be sold as a commodity to make profits that could be improved by adding inorganic fertilizer. So land application has become one of the best ways for sewage sludge, especially for the developing countries with limited cultivated lands, expanding land application of sewage sludge is very essential with the precondition of resolution of pathogen, vector, and heavy...

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