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Acta Horticulturae Sinica ›› 2021, Vol. 48 ›› Issue (9): 1805-1814.doi: 10.16420/j.issn.0513-353x.2020-0719

• Research Notes • Previous Articles     Next Articles

Changes of Soil Medium Elements and Trace Elements in Different Continuous Cropping of Cucumber in Solar Greenhouse

ZHAO Changbo, ZHENG Shiwei, BIAN Ting, WANG Shuang, ZHANG Xiaolan, FU Hongdan, SUN Zhouping*(), LI Tianlai   

  1. National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology,Liaoning Key Laboratory of Protected Horticulture,Key Laboratory of Protected Horticulture of Ministry of Education,College of Horticulture,Shenyang Agriculture University,Shenyang 110866,China
  • Received:2020-10-22 Revised:2021-03-14 Online:2021-09-25 Published:2021-09-30
  • Contact: SUN Zhouping E-mail:sunzp@syau.edu.cn

Abstract:

In order to explore the change rule of soil medium elements and trace elements content in the condition of long-term continuous cropping of cucumber in solar greenhouse,soil for continuous cropping of cucumber with 2-26 crops were obtained in the solar greenhouse,and the change characteristics of the medium elements and trace elements in the soil were studied. The management patterns of cucumber varieties,cultivation methods,water and fertilizer management,plant management, environmental management and pest control were adopted in the same way. The results showed that soil exchangeable calcium,exchangeable magnesium and the percentage of exchangeable calcium in total calcium decreased with the increase of continuous cropping of cucumber in solar greenhouse. Compared with the 2nd crop,soil exchangeable calcium,exchangeable magnesium and the ratio of exchangeable calcium in total calcium decreased by 8.5%,25.8% and 53.2% in the 26th crop respectively. Compared with the 2nd crop,the soil total calcium increased by 95.9% in the 26th crop,and total magnesium the ratio of exchangeable magnesium in total magnesium had no significant difference between the 2nd crop and the 26th crop. Soil available copper,zinc and molybdenum were enriched to a certain extent. Compared with the 2nd crop,the 26th crop soil available copper,zinc and molybdenum increased by 33.9%,87.3% and 221.7%,respectively. The contents of soil available iron,available manganese and available boron fluctuated with the increase of continuous cropping,and there was no significant difference between the 26th and the 2nd crop. In general,the comprehensive level of the various medium elements and trace elements in the soil of different continuous cropping cucumber gradually increased from 2-8 crops,and then there was a change cycle of first increasing and then decreasing every six crops in the solar greenhouse.

Key words: solar greenhouse, cucumber, continuous cropping, medium elements, trace elements

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