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Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (35): 65-72.doi: 10.11924/j.issn.1000-6850.casb2021-0126

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Effect of Activated Oxygen Technology on Soil Successive Cropping Obstacle Remediation and Tomato Quality Improvement

Wang Xiaoyun1(), Cai Yuntong1, Wu Hongsheng2(), Zhang Xumei3, Xu Jinyi4, Ma Wenzhou5, Zhang Jinfu6, Hu Qingqing3, Sun Qian1, Zhang Qian1, Ding Jun1, Shen Wenzhong3   

  1. 1Xinghua City Agricultural Technology Extension Station, Xinghua Jiangsu 225500
    2Nanjing University of Information Science and Technology, Nanjing 210044
    3Taicang City Agricultural Technology Extension Station, Taicang Jiangsu 215400
    4Wuxi City Agricultural Technology Extension Station, Wuxi Jiangsu 214021
    5Xuyi County Arable Land Quality Protection Station, Xuyi Jiangsu 211700
    6Nanjing City Gaochun Arable Land Quality Protection Station, Gaochun Jiangsu 211300
  • Received:2021-02-03 Revised:2021-05-16 Online:2021-12-15 Published:2022-01-07
  • Contact: Wu Hongsheng E-mail:168421942@qq.com;wuhsluck@163.com

Abstract:

Soil sickness in facility agriculture of tomato cultivation is so severe that could affect greenhouse vegetable and fruits production. The control and inhibition effects of activated oxygen technology (AO) on soil sickness was studied on soil of 5 years successive tomato cultivating. The results showed that soil microbial ecosystem changed after the treatment, the amounts of forma specialis Fusarium oxysporum decreased by 79.2%-93.5%, Ralstonia solanacearum decreased by 83.3%-91.7% compared with CK after irrigated with AO water twice and sealed with plastic film of 1 month. Compared with control, topsoil soluble salts declined and soil conductivity was reduced by 55.5% and bulk soil weight decreased by 4.43%. For tomato cultivation under the AO treatment, the yield increased by 20.2%-23.7% compare with CK. The Vc content, total soluble sugar content and edible fiber in tomato fruits increased by 52.9%-76.2%, 12.8%-16.8%, and 20.9%-23.3%, respectively, while the content of nitrate decreased by 16.3%-14.2% in comparison with the control. In conclusion, activated oxygen and high temperature solar flooding technology could be used to prevent and control soil sickness in facility agriculture.

Key words: activated oxygen, high temperature solar flooding, soil successive cropping obstacle, tomato, soil-borne pathogen, microbial ecology

CLC Number: