含钾岩石是指伊利石泥岩、水云母粘土岩、海绿石砂岩和含钾砂岩等不溶性的钾矿资源。其中K_2O含量,泥岩、页岩类,一般要求大于或等于4％,粉砂质泥岩、页岩类大于或等于7％。 近几年,地矿部地质力学研究所、北京大学和中国科学院等单位,采用微生物工程技术“活化”含钾岩石中的结构钾,使K~+析出,经科学配比,加工制成生物钾矿肥。通过对粮、棉、油等十多种作物,进行田间试验,其增产效果接近或相当等量的氯化钾效果。 江西地质矿产调研大队为了引进这一高新技术,于1995、1996年,两次派员对赣东北地区的含钾岩石资源进行调查,在上饶至玉山一带发现大量含钾岩石。矿层位于扬子陆块南缘,新元古代海相地层中。矿体赋存于震旦系上部朝阳组的紫红色泥岩里,层状产出,呈NEE向展布,长约30km。构造简单,矿层颇为稳定,其厚 Potassium-containing rocks are insoluble potash resources such as illiteite, hydrous mica clay, glauconite sandstone and potassium-bearing sandstone. K 2 O content, mudstone and shale are generally greater than or equal to 4%, silty mudstone and shale greater than or equal to 7%. In recent years, the Institute of Geomechanics of the Ministry of Geology and Mineral Resources, Peking University and the Chinese Academy of Sciences and other units, using microbial engineering technology “activation” of potassium in the rock structure of potassium, so K ~ + precipitation, the ratio of science, processed into biological Potash fertilizer. Through the field of grain, cotton, oil, more than 10 kinds of crops, the yield increase effect is close to or equivalent amount of potassium chloride effect. In order to introduce this high and new technology, Jiangxi Geological and Mineral Research Brigade dispatched two investigators to investigate the resources of potassium-bearing rocks in the northeastern Jiangxi region in 1995 and 1996 and found a large amount of potassium-bearing rocks in the area from Shangrao to Yushan. The ore is located in the southern margin of the Yangtze block, Neoproterozoic marine strata. Ore bodies occur in purplish red mudstone of the Chaoyang Formation in the upper Sinian, stratified and distributed in the NEE direction, about 30 km in length. Simple structure, the ore is quite stable, its thickness