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钾盐是我国极为紧缺的矿产资源 ,以此为原料的钾肥对烟草、瓜果、蔬菜等农作物至关重要。目前我国钾肥年需求量为 5 0 0万ｔ,而产量仅有 80万ｔ,每年都要花费 5亿美元进口钾肥。新疆东南部的罗布泊面积达上万平方公里 ,曾是塔里木河水的归宿地。干涸的湖盆蕴藏着丰富的钾盐资源
Potassium salt is a very scarce mineral resource in China. The use of potash as raw material is crucial for tobacco, fruits, vegetables and other crops. At present, the annual demand for potash fertilizer in China is 500,000 tons, and the output is only 800,000 tons. It takes US$500 million to import potash fertilizer every year. The area of Lop Nur in the southeast of Xinjiang reaches tens of thousands of square kilometers and was the home of the Tarim River. Dry lake basin is rich in potassium resources