垃圾肥对土壤养分及物理性状的影响

在盆栽和田间定位试验条件下，研究了垃圾肥对潮土ｐＨ、盐分、全Ｎ、速Ｐ、速Ｋ和土壤物理性状的影响。结果表明，垃圾肥能明显提高土壤养分含量，土壤物理性状也有显著改善。垃圾肥对土壤ｐＨ降低的幅度尽管不大，但对潮土中微量元素的活化具有重要意义。另一方面，随着垃圾肥用量的增加，土壤全盐含量上升，因此在施用垃圾肥时应注意土壤盐分的累积。

Rubbish Compost on Soil Nutrients and physical Properties.

Pot and field experiments were carried out to investigate the effects of city rubbish compost on soil pH, nutrients and physical properties. The experimental results showed that rubbish compost could increase soil nutrients and ameliroate soil physical properties obviously. Rubbish compost decreased soil pH slightly, but which played a very important role in mobilizing the micronutrients in tested soil. On the other hand, the more the amount of rubbish compost applied, the higher the soil salt. So, attentions should be paid to soil salt accumulation.