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- W2350298422 abstract "One of the characteristics of desertificated soil in the northwestern part of China is the bad lack of phosphorus. But the contents of phosphorus in coal ash and sewage sludge are high. So the coal ash and sewage sludge can be added into desertificated soil for supplying phosphorus. The effect would be better if the coal ash or sewage sludge is added separately, because phosphorus can be lost again under the condition of strong rain leaching in Northwest China. The experiment was carried out on how to enhance the validity of phosphorus in the additive. The results showed that there is a strong adsorption and slow release process of phosphorus in the experiment. It is indicated that porous coal ash particles can adsorb a large amount of available phosphorus from sewage sludge. And then the available phosphorus can release again, though slowly. This means that by mixing coal ash and sewage sludge, the available phosphorus can be stored firstly, then some of it will release slowly and absorbed by plants. Moreover, phosphorus in coal ash also can be released by breaking the particles under complex physical, chemical and biochemical processes. The experimental results show that: improvement of the desertificated soil in Northwest China is a way of mixing coal ash and sewage sludge to complement phosphorus, especially for desertificated soil in arid, less vegetation and strongly rain leaching areas. The way can increase greatly the validity of phosphorus." @default.
- W2350298422 created "2016-06-24" @default.
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- W2350298422 date "2004-01-01" @default.
- W2350298422 modified "2023-09-25" @default.
- W2350298422 title "AN EXPERIMENTAL STUDY ON THE VALIDITY OF PHOSPHORUS IN COMPLEX SOIL ADDITIVE PREPARED BY COAL ASH AND SEWAGE SLUDGE" @default.
- W2350298422 hasPublicationYear "2004" @default.
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