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生物有机肥底施对设施黄瓜促生抑病的效果

2021-04-02刘阳钟增明孙漫红段普舜陈梓康赵淑婷于英娇王琪胡海奇秦立金

农业研究与应用 2021年6期
关键词:生长

刘阳 钟增明 孙漫红 段普舜 陈梓康 赵淑婷 于英娇 王琪 胡海奇 秦立金

摘 要:為了了解不同生物有机肥底施处理对设施黄瓜生长、品质、产量以及抑病效果的影响,本试验采用黄瓜田间种植的方法,设计不同浓度生物有机肥底施处理,通过测定黄瓜田间生长、品质和产量等指标,以及植株叶片霜霉病发病和100 g土壤中根结线虫的数量,筛选最佳生物有机肥底施浓度。结果表明:不同浓度生物有机肥能够促进黄瓜田间生长,提升品质,增加产量,其中,360 kg/667m2处理的最大叶面积、可溶性糖含量比CK增加了8.26%和5.79%,与CK达到了极显著差异(P<0.01);生物有机肥底施处理降低了黄瓜植株叶片霜霉病的发病率以及100 g土壤中根结线虫数量,与CK达到了显著差异(P<0.05),其中,360 kg/667 m2处理的黄瓜植株叶片霜霉病发病率比CK降低了50.01%;360 kg/667 m2和480 kg/667 m2处理的100 g土壤中根结线虫数量与CK达到了显著差异(P<0.05),与CK相比,根结线虫减退率可达54.12%和57.21%。因此,适宜用量的生物有机肥底施处理对设施黄瓜生产能够起到促生抑病的效果,可以用于赤峰地区设施黄瓜的生产种植中。

关键词:生物有机肥;黄瓜;生长;病情指数;根结线虫数量

中图分类号:S436.421.1                     文献标志码:A

Growth-Promoting and Disease-Inhibiting Effects of Biological Organic Fertilizer on Facility Cucumber

LIU Yang1,ZHONG Zengming2,SUN Manhong3,DUAN Pushun1,

CHEN Zikang1,ZHAO Shuting1,YU Yingjiao1,WANG Qi1,

HU Haiqi1,QIN Lijin1,4*

(1Institute of Chemistry and Life Sciences,Chifeng University,Chifeng,Inner Mongolia 024000,China;2Beijing Qigao Biologics Co.,Ltd.,Beijing 100193,China;3Institute

of Plant Protection,Chinese Academy of Agricultural Sciences,Beijing 100193,China;4Institute of Agricultural Sciences,Chifeng University,Chifeng,

Inner Mongolia 024000,China)

Abstract:Conducted an experiment to study the effects of base application of different concentrations of bio-organic fertilizer on the growth,quality,yield and disease suppression of facility cucumber. Planted cucumber in field,and designed base application treatments of bio-organic fertilizer with different concentrations. Measured the growth,yield,quality,downy mildew incidence of cucumber and root-knot nematodes in 100 g soil to screen the best concentration of bio-organic fertilizer. The results showed that different concentrations of bio-organic fertilizers could improve the growth,quality and yield of cucumber. In the treatment with 360 kg/667 m2 bio-organic fertilizer,the maximum leaf area and soluble sugar content were 8.26% and 5.79% higher than CK,showing very significant difference with CK (P < 0.01). Bottom application of bio-organic fertilizer could reduce the incidence of downy mildew on cucumber leaves and the number of root knot nematodes in 100g soil,showing significant difference with CK(P < 0.05). In the treatment with 360 kg/667 m2 bio-organic fertilizer,the downy mildew incidence was 50.01% lower than that of CK. In the treatment with 360 kg/667 m2 and 480 kg/667 m2 bio-organic fertilizer,the root-knot nematode decreased by 54.12% and 57.21%,respectively,showing significant difference with CK(P < 0.05). Therefore,base application with appropriate amount of bio-organic fertilizer can promote the growth and inhibit the disease of facility cucumber. The technology can be used in facility cucumber production in Chifeng area.

Key words:Bio-organic fertilizer;cucumber;growth;disease index;number of root knot nematodes

黄瓜(Cucumis sativus L.)是我国北方地区日光温室栽培的主要蔬菜品种之一,栽培面积呈逐年增加的趋势[1]。但设施环境相对封闭和生产者的种植水平有限,不合理施肥造成了土壤肥力下降、肥料利用率低、产量及品质下降、土传病害加重等诸多问题[2,3]。黄瓜霜霉病和根结线虫病是设施黄瓜生产上的主要病害种类,已成为制约黄瓜高产、稳产的限制因子。……

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