一、旱秋绿1号在干旱条件下，如再加上土壤PH值们高，铁、锰、锌、铜等元素活性下降，旱育秧苗很难吸收、利用，导致生理缺素。其中以校铁最为常见也最严重。缺铁使旱育秧苗叶绿素形成受阻，叶片颜色变成谈黄色甚至白色。此外，铁元素在秧苗体内一旦进入代谢过程就不能转移，老 First, dry autumn green 1 In drought conditions, such as coupled with the high soil pH, iron, manganese, zinc, copper and other elements decreased activity, drought-resistant seedlings difficult to absorb, use, leading to physiological deficiency. One of the most common and most serious school-based iron. Iron deficiency drought-tolerant seedling chlorophyll formation blocked, leaf color turned to talk about yellow or white. In addition, iron can not be transferred once it enters the metabolic process in the seedling