粉煤灰改良重粘土地的投加量和后效试验

Study on Addition Amount of Fly Ash for Improving Clay Soil and Its After-effect

本文以燃煤电厂排放的粉煤灰为试验材料,研究了不同投加量对重粘土地小麦产量的影响及其后效。试验结果表明,粉煤灰改良重粘土地的效果是显著的。在一定施灰量范围内,对小麦的生长、发育及产量都有直接影响。尤以亩施5～8万斤灰增产最显著。

In this paper, fly ash discharged from the power plant was used to study the effect of various addition amount applied to clay soil on wheat yield and its after-effect. The result showed that the effect of fly ash on improving clay soil was obvious. Wthin a certain limit, it could be affected directly on the growth, development and yield of wheat, especially when the ad dition amount of fly ash was 25-40 ton per mu.