含钛高炉渣合成复合肥料及大豆栽培实验研究

Synthesis of Compound Fertilizer from Titanium-Bearing Slag and Cultivation of Soybean

以含钛高炉渣为原料,采用加热法制备肥料,以提高其溶解性能,使其中的营养元素转化为易被植物吸收利用的形式,并通过盆栽实验研究了肥料对大豆生长状况、性状、产量和营养成分的影响。结果表明,炉渣中Mg,Ti,Fe的溶出率分别为88%,84%和75%,该肥料可以使大豆的株高、节数、主根长、叶干重和叶绿素含量明显增加;使大豆的单株枇荚数和荚皮重/粒重明显减少,单株荚数、单株荚重、单株粒数和单株粒重显著增加,对百粒重、蛋白质和淀粉含量影响不大。说明该肥料对大豆植株和根系的生长均有促进作用,对大豆有增产作用且增产作用是通过增加单株荚数、单株荚重和单株粒数来实现的。

A kind of fertilizer was synthesized with titanium-bearing slag as a major raw material by heating method to improve its sol-ubility so that nutritional elements could transform into other forms to be easily absorbed by plants.The effects of the fertilizer on growth condition,character,yield and nutritional component of soybean were investigated by pot experiment.The results showed that the dis-solution rate of magnesium,titanium and iron in the slag were 88%,84% and 75%,the fertilizer could make the height...