期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：300
期号：2
页码：1-6
DOI：10.1088/1755-1315/300/2/022157
出版社：IOP Publishing
摘要：The Pisha sandstone is widely distributed and rich in mineral elements. It has caused widespread concern about how to turn the rich mineral elements contained in Pisha sandstone into an activation state that can be absorbed and utilized by plants. Meanwhile, it will be the focus of this paper that the effect of physical and chemical properties and nutrients of the Pisha sandstone under the various activation conditions, such as pH, temperature and salt solution. We take pH and temperature as examples, the changes of physical and chemical properties, the main nutrients and nutritional level evaluation of the treated Pisha sandstone were studied. The results show that the conductivity of the Pisha sandstone can be improved under acidic or alkaline conditions. The temperature is one of the main factors affecting the content of available phosphorus, organic matter and available potassium of the Pisha sandstone, while the total nitrogen content is little affected by pH and temperature. And the nutrient grade of the Pisha sandstone increases from very low to low Only at 50°C.
