HUBEI AGRICULTURAL SCIENCES ›› 2024, Vol. 63 ›› Issue (1): 75-80.doi: 10.14088/j.cnki.issn0439-8114.2024.01.013

• Horticulture & Local Products • Previous Articles     Next Articles

Effect of biodegradable mulch on growth and development of Capsicum frutescens

FU Xi-hao1,2, ZHU Jian-qiang1, FAN Xian-peng2, YAN Ren-kai3, ZHANG Zhi-yi2, WANG Ling4, NI Cheng-fan2   

  1. 1. College of Agriculture, Yangtze University, Jingzhou 434000,Hubei,China;
    2. Institute of Plant Protection and Soil Fertilizer,Hubei Academy of Agricultural Sciences/National Agricultural Environment Observation and Experimental Station in Qianjiang/Hubei Engineering and Technology Research Center of Agricultural Non-point Source Pollution Control/Qianjiang Agricultural Environment and Arable Land Conservation Scientific Observation and Experimental Station, Wuhan 430064,China;
    3. Shiyan Agriculture and Rural Bureau, Shiyan 442099, Hubei,China;
    4. Jingzhou Agriculture and Rural Bureau, Jingzhou 434020,Hubei,China
  • Received:2023-10-16 Online:2024-01-25 Published:2024-02-05

Abstract: To clarify the effects of biodegradable plastic films made of different materials on the growth and development of Capsicum frutescens, field experiments were conducted using polyethylene plastic films (PE), natural product films (PM1, PM2), synthetic polymer degradable films (PBAT, PHA, etc.) (PM3, PM4, PM5) to observe the warming effect of different plastic films, gegradation properties and growth characteristics of Capsicum frutescens under different plastic film covers. The results showed that the early stage of Capsicum frutescens growth (0~52 days after film mulching) was the main period of temperature increase by mulching, and plastic mulching planting mainly increased the soil temperature of 0~5 cm and 5~10 cm soil layers during this period. Among them, the warming effect of PM5 was similar to that of PE, with an average temperature increase of over 2 ℃ in the 5~10 cm and 10~15 cm soil layers compared to CK (open field planting). The height of chilli plants grew significantly from 24 to 47 d after mulching, with an average increase of about 20.28 cm. After 39 days of film mulching, PM5 was increased by approximately 8.2 cm compared to CK; there were significant differences in the chlorophyll SPAD of Capsicum frutescens with different film mulching treatments after 23 days of film mulching, with PM5 and PE significantly higher than CK, increased by 5.67 and 3.70, respectively. The effect of plastic film mulching on Capsicum frutescens showed that the cumulative yield of PM3, PM4 and PM5 was significantly higher than that of CK, with an increase of 4 123, 4 445 kg/hm2 and 5 552 kg/hm2, respectively, and their yield increases were close to or better than that of PE, of which the effect of PM5 on chilli yield enhancement was the most obvious. Therefore, it was recommended to use biodegradable mulch with a thickness of 0.01 mm, mainly composed of PBAT and PHA, for open-air cultivation of Capsicum frutescens.

Key words: biodegradable mulch, degradable material, Capsicum frutescens, growth and development

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