不同处理措施对页岩煤矸石风化物水分特征及玉米出苗率的影响

为了低成本改良煤矸石风化物的水分特征,改善作物生长条件和提高作物产量。以碳质页岩煤矸石风化物为对照,设添加绿泥岩、土壤、粉煤灰、保水剂、沸石5因素4水平正交试验。通过温室盆栽玉米试验,研究各改良措施对盆栽基质水分含量和玉米出苗率的影响。加入绿泥岩40%的处理和加粉煤灰8%的处理对盆栽基质水分含量无明显影响。除加入绿泥岩15%的处理外,其他处理都促进出苗。出苗前半期,出苗率随着粉煤灰量和保水剂量的增大而增加;出苗末期,加入土壤量为15%的处理出苗率最高。盆栽土壤水分含量随着绿泥岩和保水剂添加量的增大而增加,随着土壤加入量的增加而减少。出苗率随着各盆栽基质水分含量增加得到明显提高。

Effect of the Different Treatment Measures on Moisture Characteristic of Shale Gangue Weathering Product and Germination Rate of Maize

The purpose of the study was to modify the moisture characteristic of gangue weathering product with low cost,improve growth conditions of crops and enhance the crops yield.In the potted maize experiment in greenhouse,with the carbonaceous shale gangue weathering product as CK,a 5-factor and 4-level orthogonal experiment adding with green mudstone,soil,fly ash, water-holding agent and zeolite was set up to study the effects of various improvement measures on maize germination rate and moisture content of potted media.Only the treatments added with 40% green mudstone and 8% fly ash had no obvious effect on moisture content of potted media.Except for the treatment adding 15% green mudstone,the other treatments promoted maize germination.In the first half germination stage,the germination rate was increased along with the increasing dosages of fly ash and water-holding agent.In the last half germination stage,the treatment adding 15% soil had the highest germination rate.The moisture content of potted soil increased along with the increment of additions of green mudstone and water-holding agent,and reduced as the soil addition increased.The germination rate was enhanced obviously as the moisture content of each potting media increased.