摘要
由切花菊‘优香’长期连作导致的枯萎病不仅严重降低了切花菊的品质及产量,而且致使土壤酶活性降低,土壤微生物种群失调.本文采用大田试验,比较研究了切花菊‘优香’连作土壤中分别施用杀菌剂多菌灵(MBC)、添加有拮抗微生物的有机肥(BOF)及二者的联合施用(MBC+BOF)对切花菊‘优香’品质及土壤酶活性的影响.结果表明:单独施用微生物有机肥(BOF)或多菌灵(MBC)均能有效防控切花菊连作枯萎病的发生;微生物有机肥(BOF)在增强切花菊‘优香’的根系活力、提高切花菊的主要品质(株高、茎粗、叶绿素含量、舌状花数、植株鲜质量)及切花菊土壤酶活性方面效果显著高于多菌灵(MBC);多菌灵对土壤酶活性有一定抑制作用;二者联合处理(MBC+BOF)对提高切花菊主要品质及土壤酶活性的综合效果最佳.
Fusarium wilt is a soil borne disease caused by plant continuous cropping in monocuhure Chrysanthemum morifolium ＇Youxiang＇ monocuhure not only declines plant quality and yield but also decreases soil enzymes and soil microbial diversity over successive cultivation. In this article, the effects of fungicide （ Carbendazim MBC ）, antifungal enhanced bio-organic fertilizer （ BOF）, and their combined application on the quality and soil enzymes activities of Chrysanthemum morifoli- um＇ Youxiang＇ in continuous cropping systems were investigated. The results showed that both bio- organic fertilizer （BOF） and fungicide （MBC） single application could effectively prevent the oc- currence of Fusarium wilt disease of cut chrysanthemum. Bio-organic fertilizer application was more effective on root activity, soil enzymes activities and quality （shoot height, stem diameter, leaf SPAD value, ray floret number, shoot fresh mass） improvement of cut chrysanthemum, while fun- gicide single application was responsible for soil enzymatic activities suppression to some extent. The combined application treatment （MBC＋BOF） showed the best effects on quality improvement and soil enzyme activities promotion.
出处
《应用生态学报》
CAS
CSCD
北大核心
2015年第4期1231-1236,共6页
Chinese Journal of Applied Ecology
基金
农业部948重点滚动项目(2011-G17)
国家科技支撑计划项目(2013BAD01B070403)
国家863计划项目(2011AA100208)
江苏省高校科研成果产业化推进项目(JHB2011-8)
江苏省科技支撑计划项目(BE2011325)
江苏省六大人才高峰项目(2013-NY-022)
国家自然科学基金青年科学基金项目(31301809)
南京农业大学青年科技创新基金项目资助
关键词
切花菊
连作障碍
微生物有机肥
杀菌剂
切花品质
土壤酶活性
cut chrysanthemum
continuous cropping obstacle
bio-organic fertilizer
fungicide
cut chrysanthemum quality
soil enzymatic activities.
