硅钙钾镁肥土壤调理剂的研发与应用

Research and Development of Silicon-Calcium-Potassium-Magnesium Fertilizer Soil Conditioner and Application

针对土壤酸化、盐碱化、土壤污染等问题,以活化腐殖酸结合钾长石和石灰石等富含钾、钙、硅的矿物原料进行二次研发,开发出改良土壤的硅钙钾镁肥土壤调理剂,并与普通土壤调理剂(磷石膏土壤调理剂)在酸化果园土壤上进行土壤改良对比试验。试验结果表明:硅钙钾镁肥土壤调理剂处理的苹果产量分别较未施土壤调理剂处理和磷石膏土壤调理剂处理增产12.31%和5.85%,增产效果显著;与磷石膏土壤调理剂相比,硅钙钾镁肥土壤调理剂具有更明显的土壤改良效果,土壤p H分别较未施土壤调理剂处理和磷石膏土壤调理剂处理提高0.27和0.15,土壤阳离子交换量分别提高0.32 cmol/kg和0.11cmol/kg。

In connection with problems of soil acidification, salinization, soil pollution, etc., with activated humic acid combined with raw mineral materials such as potassium feldspar and limestone, etc., which are rich in potassium, calcium and silicon, research and development are carried out for the second time, and silicon-calcium-potassium-magnesium fertilizer soil conditioner is developed which can be used for improving the soil. And contrast experiment on soil improvement is carried out in orchard acid soil with common soil conditioner （phosphogypsum soil conditioner）. Experimental results show that using silicon-calcium-potassium-magnesium fertilizer as soil conditioner, apple yield increases by 12.31% and 5.85% respectively compared with applying no soil conditioner treatment and applying phosphogypsum as soil conditioner treatment, yield increase effect is significant; compared with phosphogypsum soil conditioner, silicon-calcium-potassium-magnesium fertilizer soil conditioner has more obvious effect on soil improvement, soil pH increases by 0.27 and 0.15 respectively compared with applying no soil conditioner treatment and applying phosphogypsum as soil conditioner treatment, and soil cation exchange capacity increases by 0.32 cmol/kg and 0.1 cmol/kg respectively.