中国农业科学 ›› 2023, Vol. 56 ›› Issue (19): 3869-3878.doi: 10.3864/j.issn.0578-1752.2023.19.013

• 园艺 • 上一篇    下一篇

猪粪沼液对设施基质栽培番茄的营养效应

滕云飞1(), 尚斌1, 陶秀萍2()   

  1. 1 中国农业科学院农业环境与可持续发展研究所/农业农村部设施农业节能与废弃物重点实验室,北京 100081
    2 中国农业科学院都市农业研究所,成都 610000
  • 收稿日期:2023-03-23 接受日期:2023-07-21 出版日期:2023-10-01 发布日期:2023-10-08
  • 通信作者:
    陶秀萍,E-mail:
  • 联系方式: 滕云飞,E-mail:82101191058@caas.cn。

Nutritional Effects of Liquid Digestate on Tomatoes Grown in Facility Substrates

TENG YunFei1(), SHANG Bin1, TAO XiuPing2()   

  1. 1 Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences/Key Laboratory of Energy Conservation and Waste Management in Agricultural Structures, Ministry of Agriculture and Rural Affairs, Beijing 100081
    2 Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610000
  • Received:2023-03-23 Accepted:2023-07-21 Published:2023-10-01 Online:2023-10-08

摘要:

【目的】探明猪粪沼液对设施无土栽培番茄的营养效应,为沼液的基质栽培应用提供科学依据。【方法】以番茄为研究对象,采用不同肥源(沼液和化肥)及不同类型基质(草炭和炉渣)的复因子试验设计,形成沼液+草炭(DP)、化肥+草炭(MP)、沼液+炉渣(DC)和化肥+炉渣(MC)4个处理,对番茄的生长、光合、养分吸收以及基质的理化特性等指标进行测定。【结果】DP处理的生物量比MP处理提高12.6%,同时DC处理比MC处理提高70.9%,但DP和MP处理的生物量显著高于DC和MC处理(P<0.05)。DP处理叶片的气孔导度(Cond)、胞间CO2浓度(Ci)和蒸腾速率(Tr)显著高于其他处理(P<0.05),且光合速率Pn最高,为(18.17±0.47)µmol·m-2·s-1,沼液处理显著提高了番茄的生物量和叶片的光合效率。DP处理的全株氮含量和全株磷含量比MP处理分别提高46.9%和19.7%,DC处理的全株氮含量和全株磷含量分别是MC处理的1.38和2.45倍。与化学肥料处理相比,猪粪沼液显著提高了基质的pH,增加了基质的有机质和有效磷含量(P<0.05)。DP处理果实的总产量最高,为(6.0±0.4)kg·m-2,但与MP处理无显著性差异。猪粪沼液显著提高了番茄果实的可溶性糖和Vc含量(P<0.05),提高了果实的品质。主成分分析结果表明,DP处理的各项指标综合表现最好,MP和DC处理次之,MC处理最差。【结论】猪粪沼液施入草炭基质中可以提高叶片光合效率,促进植株对氮、磷的吸收,改善基质的生态环境,且在保证产量的前提下,果实品质更好。因此,在设施番茄生产中推荐组合使用。

关键词: 猪粪沼液, 无土栽培基质, 番茄, 光合作用, 养分吸收, 基质理化特性

Abstract:

【Objective】 The nutritional effects of liquid digestate on tomatoes in facility soilless cultivation were investigated, so as to provide scientific basis for the substrate cultivation application of biogas slurry. 【Method】 Here, tomato was used as subject, and the dual inputs of fertilizers (liquid digestate (D) and mineral fertilizer (M)) and soilless substrates (peat substrate (P) and cinder substrate (C)) consisted of four treatments. The parameters of tomato growth, photosynthesis and nutrients uptake were recorded during the experimental period, as well as the properties of substrates. 【Result】The tomato dry biomass under DP treatment was higher than that under MP treatment by 12.6%, and DC treatment was higher than MC treatment by 70.9%. However, the dry biomass under DP and MP treatments were significantly higher than that under DC and MC treatments (P<0.05). The Cond, Ci and Tr of tomato leaf under DP treatment was significantly higher than that under other treatments (P<0.05), and the greatest leaf photosynthetic rate was also observed under DP treatment of (18.17±0.47) µmol·m-2·s-1. Liquid digestate significantly increased the dry biomass and photosynthesis of tomato plants. The total N and total P content of plant under DP treatment were higher than that under MP treatment by 46.9% and 19.7%, respectively, and DC treatment were 1.38 and 2.45 times higher than MC treatment, respectively. Moreover, liquid digestate treatments significantly increased the pH value, organic matter and available phosphate content of substrates compared with chemical fertilizer treatments (P<0.05). The highest fruit yield was obtained under DP treatment of (6.0±0.4) kg·m-2, and the yields between DP and MP treatments had no significant difference. The liquid digestate treatments could significantly increase the soluble sugar content and vitamin C content in tomato fruits (P<0.05), and improve fruit quality. Meanwhile, the results of principal component analysis showed that DP treatment had the best overall performance, followed by MP and DC treatments, while MC treatment was the worst. 【Conclusion】The application of liquid digestate into peat substrate increased the photosynthetic efficiency of leaves and the absorption of nitrogen and phosphorus of tomato plants, as well as the properties of substrate and the yield and quality of fruits. Therefore, the combination was recommended for use in facility tomato cultivation.

Key words: liquid digestate, soilless substrates, tomato, photosynthesis, nutrient uptake, substrate properties