萝卜杈根原因 1、土壤耕层浅,土质坚硬,或土壤中混有砖石瓦块等杂物,使主根生长膨大受到阴碍而形成杈根。 2、密度过大,根系缠绕在一起,使主根弯曲,造成侧根膨夫形成杈根。 3、施用了未充分腐熟的有机肥,使主根根尖烧死,由侧根发育成杈根。 4、地下害虫严重,伤害了主根生长点,从而形成歧根。 5、种子生长力弱,使主根生长势减弱,侧根长势强,从而造成杈根。 6、中耕除草等农事操作使主根受伤,也易形成 Root causes of radish twig 1, shallow soil cultivation, soil hardness, or mixed with soil and brick debris and other debris, so that the growth of the main root swelling and the formation of bifurcation root. 2, the density is too large, the roots entangled together, so that the main root bending, causing lateral root bulging formation of the root of the root. 3, the application of not fully decomposed organic fertilizer, the root root burns to death, developed by the lateral root into a bifurcate. 4, serious underground pests, hurt the main root growth point, thus forming the root. 5, weak seed growth, so that the main root growth potential weakened, lateral growth is strong, resulting in twig root. 6, cultivating weeds and other agricultural operations so that the main root injury, but also easy to form