文章摘要
东 晔,李云霞,刘 沛,胡先奇.生物活性有机肥“红土运”对番茄根结 线虫病抑制的初步研究[J].广东农业科学,2021,48(6):72-77
查看全文    HTML 生物活性有机肥“红土运”对番茄根结 线虫病抑制的初步研究
Preliminary Study on the Inhibition Effect of Bio-active Organic Fertilizer“Hongtu-Yun”on Tomato Root-knot Nematode Disease
  
DOI:10.16768/j.issn.1004-874X.2021.06.010
中文关键词: 生物活性有机肥  根结线虫病  番茄  抑制  生长状况
英文关键词: bio-active organic fertilizer  root-knot nematode disease  tomato  inhibition  growth
基金项目:国家重点研发计划项目(2018YFD0201202-5)
作者单位
东 晔,李云霞,刘 沛,胡先奇 云南农业大学植物保护学院 / 云南生物资源保护与利用国家重点实验室云南 昆明 650201 
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中文摘要:
      【目的】探明生物活性有机肥“红土运”对番茄根结线虫病的抑制效果。【方法】室内测定生物 活性有机肥“红土运”不同浓度浸出液对根结线虫虫卵孵化的影响,以及对 2 龄幼虫(J2)的致死作用;温室 盆栽试验采用不同施肥方式,考察生物活性有机肥“红土运”对番茄植株生长状况,以及对根结线虫病的抑制 效果。【结果】120、160、200 g/L 生物活性有机肥“红土运”浸出液处理 36 h 对南方根结线虫 J2 幼虫的校正 死亡率分别达 62.6%、79.6%、84.5%,处理 7 d 虫卵孵化率仅为 6.00%、2.66%、2.67%,与清水对照差异显著。 温室盆栽试验表明,生物活性有机肥“红土运”基肥 80 g 处理与阿维菌素处理的防治效果无显著差异,抑制效 果(相对防效)达到 80.3%;表面撒施 80 g、作基肥和表面撒施各施 40 g 处理,根结指数显著降低,相对防效 分别为 56.6%、47.4%。与对照相比,生物活性有机肥“红土运”可有效增加植株株高、茎粗和地上部分生物量 及减轻植株根坏死率。【结论】生物活性有机肥“红土运”对番茄根结线虫病有良好抑制效果,为“红土运” 的推广和番茄的安全优质生产提供理论依据。
英文摘要:
      【Objective】The objective was to investigate the inhibition effect of bio-active organic fertilizer “HongtuYun” on tomato root-knot nematode disease.【Method】The laboratory experiment was conducted to determine the leachates of bio-active organic fertilizer “Hongtu-Yun” with different concentrations on eggs hatch of root knot nematodes and lethal effect on 2 instar(J2)larvae, and the inhibition effect of“Hongtu-Yun”on tomato plant growth and root knot nematode disease were observed by pot experiments with different way of fertilization.【Result】After being treated by leachates with concentrations of 120, 160 and 200 g/L for 36 h, the mortality of J2 larvae was 62.6%,79.6% and 84.5%, respectively. And after being treated under the same condition for 7 h, the hatching rates of eggs were 6.00%, 2.66% and 2.67%, respectively. Both the mortality and the hatching rate of all treatment groups showed significant differences in comparison with distilled water control group.Pot experiments indicated that “Hongtu-Yun” could significantly suppressed root-knot nematode disease. The relative control efficiency of 80 g “Hongtu-Yun” used as base fertilizer was 80.3%, which had no significant difference with that of abamectin treatment. The relative control efficiencies of other two treatments(surface broadcasting of 80 g “Hongtu-Yun”, and surface broadcasting of 40 g “Hongtu-Yun” with 40 g “Hongtu-Yun” used as base fertilizer)were 56.6% and 47.4%, with significant decreased root-knot index. Moreover, the application of “Hongtu-Yun” promoted the growth of tomatoes including the plant height, the stem diameter, and the aboveground part biomass and decreased the necrosis rate of roots.【Conclusion】 The bio-active organic fertilizer“Hongtu-Yun”has a good control effect on tomato root-knot nematodes, which can provide a theoretical basis for the promotion of“Hongtu-Yun”and the safe and high-quality production of tomatoes.
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