To study the impacts of nanometer pottery trays (NPTs) on different rice varieties, three rice varieties, Zhongzheyou 1, Jinzao 47 and Xiushui 09, were treated with four NPTs (NPT-A, NPT-B, NPT-C and NPT-D) with different energies, respectively. The results showed that when the same rice variety was treated with different NPTs or different rice varieties were treated with the same NPT, the impa…