The oxidation mechanisms 、 influential factors and possibilities of sulfur as an ideal acidity regulation of nursery soil were clarified , it would provide theoretical bases for preventing availably stem rot 摘要阐明了硫磺在土壤中的氧化机制及影响因素，指出硫磺做为一种理想调酸剂的可能性，对今后有效防止立枯病的发生提供理论依据。
4.
The pomegranate scab and fruiting pathogen are belonged to same pathogen and deduced the pathogen infect to pomegranate stem or limb at first and infect calyces and fruit second , the pathogen of pomegranate stem rot mainly infect stem or limb , whether the pathogen infect fruit and produce symptom or not is needed to continue studying and identification 结果表明：石榴疮痂病与石榴果实上增生型症状的病原菌具有更近的亲缘关系，应为同一病原菌引起，推测该病原菌首先侵染石榴侵染枝干然后侵染石榴的花萼和果实；而石榴干腐病病原菌主要侵染枝干，是否侵染果实及引起症状特征需要继续进行研究和鉴定。
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