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问:我在一容器内栽入三株巴西铁柱,以锯末为土,几个月来长势喜人。但最近叶片焦干脱落,刚生的嫩叶也开始腐烂,为什么?怎么办? 厦门陈惠英答:此症大多是由于锯末或肥料中含有重金属或营养元素过量慢性中毒。建议将植株立即从锯末基质中解放出来,清洗根系,采用无污染栽培(无土栽培)进行抢救。基质可用清洁的蛭石;营养液可用笔者发表于本刊1987年第7期的通用配方或最近第6期第
Q: I planted three Brazilian iron pillars in a container, using sawdust as soil, which has been going well for months. However, the recent leaves dry off, just born leaves began to decay, why? How to do? Xiamen Chen Hui-ying A: The disease is mostly due to sawdust or fertilizer containing heavy metals or nutrients over chronic poisoning. It is recommended that plants be liberated immediately from the sawdust matrix, root cleaned, and contaminated (soilless) salvaged. The substrate can be used vermiculite clean; nutrient solution can be published by the author in this issue No. 7, 1987, the general formula or the recent No. 6