Physiological basis for the application of rare earth in agriculture

This paper depicts the physiological basis for the application of rare earth elements in agriculture. The contents, distribution, the forms and cytolocalization of rare earth elements in plants are discussed. The effects of rare earth elements on seed germination, root development, seedling growth, nutrient uptake, change of hormones, and photosynthesis are also discussed. Further more the rare earth elements affecting the plasma membrane and calcium physiological function are reviewed as well.