油菜在生长发育过程中,需要多种营养元素。如果缺乏某种营养元素,就会在植株外部形态上表现出相应的症状。在生产上正确诊断,及时采取措施补救,是夺取油菜高产优质,减轻或消除缺肥减产的诀窍。现将主要诊断技术简介于下: 一、缺氮诊断油菜缺氮时,植株体内蛋白质的合成受阻,叶绿素含量减少,叶片泛黄,光合作用减 Rape in the growth and development process, you need a variety of nutrients. If the lack of a nutrient element, it will appear in the external morphology of the plant symptoms. The correct diagnosis in production, timely remedial measures to take, is to seize rapeseed high yield and quality, reduce or eliminate the shortcomings of lack of fertilizer. The main diagnostic technology is now outlined below: First, the nitrogen-deficient diagnosis of rape nitrogen deficiency, the body of protein synthesis blocked, reduce chlorophyll content, leaf yellowing, reduced photosynthesis