Scholarlink

<p>Extensive research has confirmed that nitrogen-fixing cyanobacteria (NFC) significantly improve soil properties and enhance crop yields. However, studies on the impact of NFC on bok choy growth and the soil environment remain limited. This study explored the effects of integrated fertilization patterns on bok choy physiology and soil indicators and it clarified the efficacy of NFC as a partial substitute for chemical nitrogen fertilizers. Three treatments were established in this experiment: a conventional chemical fertilizer control (CF), a treatment in which 25% of chemical nitrogen fertilizer was replaced by NFC (NF25), and a treatment in which 50% of chemical nitrogen fertilizer was replaced by NFC (NF50). Results indicated that the combined application of NFC and chemical nitrogen fertilizer significantly increased plant peroxidase activity, soluble sugar content, total chlorophyll content, and carotenoid content. Compared with the CF treatment, the addition of NFC increased the activities of urease, acid phosphatase, catalase, and sucrase increased by 185.50–216.86%, 19.41–24.41%, 6.56–9.65%, and 5.06–5.57%, respectively, indicating a positive response. The combined application of NFC and chemical nitrogen fertilizer resulted in a 79.16–83.42% increase in bok choy dry weight. Under controlled pot conditions, partially replacing chemical nitrogen fertilizers with NFC effectively improved the physiological traits of bok choy and the physicochemical properties of the soil, providing preliminary theoretical guidance for low-nitrogen and green cultivation of leafy vegetables. Nevertheless, given the inherent limitations of controlled pot experiments, these findings require further validation in field trials.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Effects of co-application of nitrogen-fixing cyanobacterial and chemical fertilizer on bok choy physiological characteristics and soil properties

  • 期刊论文

  • 发表日期：

    2026年6月1日

查看全文
  • Xuening Song,
  • Yifei Yuan,
  • Xuankun Chen,
  • Yuhan Feng,
  • Yuliu Feng,
  • Juanhan Li,
  • Yongpeng Jia

摘要

Extensive research has confirmed that nitrogen-fixing cyanobacteria (NFC) significantly improve soil properties and enhance crop yields. However, studies on the impact of NFC on bok choy growth and the soil environment remain limited. This study explored the effects of integrated fertilization patterns on bok choy physiology and soil indicators and it clarified the efficacy of NFC as a partial substitute for chemical nitrogen fertilizers. Three treatments were established in this experiment: a conventional chemical fertilizer control (CF), a treatment in which 25% of chemical nitrogen fertilizer was replaced by NFC (NF25), and a treatment in which 50% of chemical nitrogen fertilizer was replaced by NFC (NF50). Results indicated that the combined application of NFC and chemical nitrogen fertilizer significantly increased plant peroxidase activity, soluble sugar content, total chlorophyll content, and carotenoid content. Compared with the CF treatment, the addition of NFC increased the activities of urease, acid phosphatase, catalase, and sucrase increased by 185.50–216.86%, 19.41–24.41%, 6.56–9.65%, and 5.06–5.57%, respectively, indicating a positive response. The combined application of NFC and chemical nitrogen fertilizer resulted in a 79.16–83.42% increase in bok choy dry weight. Under controlled pot conditions, partially replacing chemical nitrogen fertilizers with NFC effectively improved the physiological traits of bok choy and the physicochemical properties of the soil, providing preliminary theoretical guidance for low-nitrogen and green cultivation of leafy vegetables. Nevertheless, given the inherent limitations of controlled pot experiments, these findings require further validation in field trials.