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1962及1963两年中,我们应用放射性磷矿粉(昆阳矿)和放射性过磷酸钙,在草甸褐土(石灰性冲积物母质)、黄褐土(小粉土、酸性、下蜀黄土母质)及红壤(第四纪红色粘土母质)进行了小米、黄豆、荞麦的盆栽试验。试验是在肥料与土壤均匀混和的条件下进行的。X-衍射线检定及放射化学分析,证明了磷矿粉经过人工嬗变以后,其晶体构造不变(见图1)。在施用时,磷矿粉放射强度的衰变规律与P~(32)相符合。试验结果说明了在含磷比较充足的草甸褐土
In 1962 and 1963, we used radioactive phosphate rock (Kunyang Mine) and radioactive superphosphate in meadow cinnamon (calcareous alluvium parent material), yellow cinnamon soil (small silt, acidic, Xiashu loess Parent material) and red soil (Quaternary red clay parent material) millet, soybeans, buckwheat pot experiment. The test is carried out under uniform mixing of fertilizer and soil. X-ray diffraction and radiochemical analysis showed that the crystal structure of phosphate rock powder after its transmutation was unchanged (Fig. 1). At the time of application, the decay law of radioactive intensity of phosphate rock powder is consistent with P ~ (32). The test results show that the cinnamon meadow is rich in phosphorus