高炉水渣用于无土栽培基质的可行性

Feasibility of blast furnace granulated slag for substrates of soilless culture

进行了高炉水渣用于无土栽培基质的物理化学性质测定和番茄、花卉无土栽培实验。结果显示,高炉水渣的各项物理化学性质能够满足作为无土栽培基质的要求。用高炉水渣与草炭制成的混合基质,栽培的番茄植株长势良好,果实整齐肥大,色泽鲜艳,结果优于纯草炭(CK);高炉水渣与草炭体积比为1:1时,栽培的各种观赏性花卉长势良好。

The determination of physicochemical properties on blast furnace granulated slag for substrates o soilless culture and the experiment of soilless culture of tomato and flowers are carried out. The results show that the physicoehemical properties of the blast furnace granulated slag meet the requirements of substrates o soilless culture. In the experiment, the mixed substrate is made of peat and little blast furnace granulated slag, the tomato plants grow well with hypertrophic and bright color fruit, and it is better than pure pea -（CK）. The experiment of soilless culture of flowers is carried out with satisfactory results when the volume ra tio of blast furnace granulated slag and peat is 1 ： 1.