叶片是植物光合作用的场所,小麦的一生一般可形成10～12片叶,随着生长发育阶段的推进,小麦的叶片将不断地落黄枯死。除正常的落黄枯死之外,小麦的叶片还因致病和生理的原因或环境的压力而造成黄化现象。本文拟就叶片发黄的原因与防治作如下探讨。 Leaves are photosynthetic plants, wheat life can be formed generally 10 to 12 leaves, with the promotion of growth and development stage, the leaves of wheat will continue to fall yellow dead. In addition to the normal fall yellow dead, the wheat leaves also cause yellowing due to pathogenic and physiological causes or environmental stress. This paper is about the causes of leaves yellowing and prevention as follows.