高炉渣用于无土育苗基质的实验研究

Experimental Research on BF Slag Used as Substrates of Soilless Seedling

进行了高炉渣用作无土育苗基质的物理化学性质评价和黄瓜无土育苗实验。通过分析高炉渣的化学成分、容重、pH值、总孔隙度、通气孔隙以及持水孔隙等理化性质,表明高炉渣适合作无土育苗基质。泥炭配加高炉渣制成混合基质的黄瓜育苗与纯泥炭(CK)比较,育苗时间明显缩短,18d育苗期结束,且幼苗长势良好,其中高炉渣与泥炭体积比为2∶3、1∶2及1∶3时的育苗效果较为理想。

The evaluation of physical and chemical properties of BF slag used as substrates of soilless seedling,and the test of soilless seedling of cucumber was carried out.Through analysing the physical and chemical properties which include chemical composition,unit weight,pH value,total porosity,ventilation pore of the BF slag,the results proved that the BF slag served as substrate of soilless seedling is suitable.Compared with pure peat（CK）,the mixed substrate consisted of BF slag and peat（BF slag is added in peat）has been shown that the seedling time is shortened obviously,and the seedlings grew well during 18 days,which was the end of experiment.2∶3、1∶2 and 1∶3 volume ratios of BF slag and peat are better groups in the experiments.