Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (6): 37-41.doi: 10.11924/j.issn.1000-6850.casb2021-0352

Special Issue: 生物技术 马铃薯 园艺

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The Application Effect of Degradable Film in Potato Production

CHEN Ruiying1(), ZHAO Peirong1, LIU Hongjin2, ZHANG Lei2, GUO Xiaoyu2   

  1. 1Agricultural Technology Service Centre of Siziwang Banner, Ulanqab, Inner Mongolia 011899
    2Inner Mongolia Agriculture and Animal Husbandry Ecology and Resource Protection Center, Hohhot 010010
  • Received:2021-04-06 Revised:2021-08-21 Online:2022-02-25 Published:2022-03-16

Abstract:

To clarify the application effect of degradable film in potato production, in this study, 7 kinds of degradable film were selected to carry out field and landfill experiments to analyze the effects of different film mulching treatments on potato yield and film degradation performance. The results showed that the potato yield of film mulching treatment was 4.35%-14.62% higher than that of bare ground treatment, and the potato yield of 4 degradable film treatments was 1.48%-7.01% higher than that of common film mulching, but the effect was not significant (P>0.05). In the whole growing period, the soil temperature increased first and then decreased. In May and June, the soil temperature of film mulching treatment was 0.42-1.29℃ and 0.39-1.09℃ higher than that of bare ground treatment respectively, and in July, the soil temperature of common film mulching was 0.52-1.36℃ higher than that of other treatments. All degradable films entered the induction period 12 to 22 days after mulching, and all of them were in the big split period at harvest time. After one year of landfill, the 4 kinds of whole biodegradable film were degraded at different degrees, and the 3 kinds of oxidized biodegradable film were not degraded. The results showed that the effect of degradable film on potato yield and soil temperature was basically the same as that of common film. Although the degradation rate of degradable film was slow and the degradation degree was low of the very year, it could be popularized and used in the long run. T1 degradation film is recommended to be popularized locally.

Key words: potato, degradable film, yield, soil temperature, degradation performance

CLC Number: