CAJ | 학술논문

探讨发财树植株黄化的原因及发生机制。结果表明：当土壤中的有效锰含量超过230 mg/kg时,对发财树产生毒害,此时,在黄化植株的根、叶部位锰元素含量,分别比正常植株高1倍和2倍以上;锰的过量吸收,影响根系对其它一些元素的吸收;土壤中的酸度过低及一些元素的不足,是造成有效锰含量过高的原因。因此,提高土壤pH值、改进耕作方法、增加土壤的钙、镁、铁等元素的有效含量,可降低锰害发生。
탐토발재수식주황화적원인급발생궤제。결과표명：당토양중적유효맹함량초과230 mg/kg시,대발재수산생독해,차시,재황화식주적근、협부위맹원소함량,분별비정상식주고1배화2배이상;맹적과량흡수,영향근계대기타일사원소적흡수;토양중적산도과저급일사원소적불족,시조성유효맹함량과고적원인。인차,제고토양pH치、개진경작방법、증가토양적개、미、철등원소적유효함량,가강저맹해발생。
We explored the reason of etiolation in Pachira aquatica Auhlet. When the content of effective manganese exceeded 230 mg/kg, the plants were poisoned. In the roots and leaves of etiolated plants, the content of manganese was one and two times more than the healthy plant, respectively. The excessive absorption of manganese influenced the roots to absorb other contents. The low pH value and insufficient contents caused the effective manganese excessive. As a result, to decrease the damage of manganese, we can improve the pH value, working technique and the effective contents such as calcium, magnesium and iron.