Journal of Zhejiang Agricultural Sciences

Journal of Zhejiang Agricultural Sciences ›› 2025, Vol. 66 ›› Issue (5): 1138-1144.DOI: 10.16178/j.issn.0528-9017.20250147

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Degradation characteristics of full biodegradable mulch film and its effect on soil physicochemical properties and benefits of early spring potato

CHEN Xiang1,2(), XU Lijun1, QIAN Zhongming1, HONG Meiping1, HUANG Jiaqi1, HE Kuangyi1, WU Lingen1, ZHUANG Haifeng3, HU Meihua4,*()   

  1. 1. Tonglu County Agricultural Technology Extension Center, Tonglu 311500, Zhejiang
    2. College of Information, Huazhong Agricultural University, Wuhan 430070, Hubei
    3. Zhejiang Key Laboratory of Waste Biomass Recycling and Ecological Treatment Technology, Zhejiang University of Science and Technology,Hangzhou 310023, Zhejiang
    4. Zhejiang Agricultural Technology Extension Center, Hangzhou 310020, Zhejiang
  • Received:2025-02-27 Online:2025-05-11 Published:2025-05-20

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Abstract:

To examine the effects of full biodegradable mulch films on soil physicochemical properties, as well as the benefits for spring potato cultivation, experiments were conducted using 10 different types of full biodegradable mulch films. The results showed that the full biodegradable mulch film can improve the overall performance of the soil and had a yield-increasing and efficiency-improving effect on spring potatoes. Among them, the white full biodegradable mulch film had a relatively faster degradation speed and a relatively higher crop yield; while the black full biodegradable mulch film effectively improved the overall soil fertility and soil enzyme activity. At the time of potato harvest, the full biodegradable mulch film was basically in the large cracking period, it could be directly mechanically turned over and cultivated without producing white pollution. Compared with ordinary films, the average yield of all the full biodegradable mulch films covered in experiment increased by 5.2% per 667 m2, and the average economic benefit increased by 6.4% per 667 m2, among which the highest economic benefit was obtained under 8 μm white full biodegradable mulch film. The results of this experiment showed that the white full biodegradable mulch film has broad prospects for popularization and in the cultivation of early spring potatoes in open fields.

Key words: full biodegradable mulch film, soil, potato, application effect

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