本文通过田间、盆栽试验研究和分析了水稻、小麦、玉米等农作物喷施农用稀土后,植物叶片内叶绿素的含量,光合叶面积的大小,叶片的光合强度、呼吸强度的强弱。结果表明,农作物在营养生长阶段和生殖生长阶段。喷施稀土后,其叶片内叶绿素的含量大大提审尤其是叶绿素a增加特别明显,叶片的面积也增大,同时增强了叶片的光合作用和呼吸作用。 In this paper, field experiments and pot experiments were conducted to study and analyze the contents of chlorophyll, photosynthetic leaf area, photosynthetic and respiration of plants after spraying agricultural rare earths such as rice, wheat and maize. The results show that the crops in the vegetative and reproductive growth stages. Spraying Rare Earth, the content of chlorophyll in leaves greatly examined, especially the chlorophyll a increased significantly, the leaf area also increased, while enhancing leaf photosynthesis and respiration.