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Chinese Agricultural Science Bulletin ›› 2025, Vol. 41 ›› Issue (7): 107-114.doi: 10.11924/j.issn.1000-6850.casb2024-0421

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Study on Effect of Weed-control Cloth on Growth, Development and Yield of Datong Daylily

LI Laping1(), LI Xiaozhen1(), YANG Shuhua1, YUE Xinli2, SUN Mengxia1, YANG Chuncang1   

  1. 1 Datong Meteorological Bureau of Shanxi Province, Datong, Shanxi 037010
    2 Datong Daylily Industry Development Research Institute, Datong, Shanxi 037010
  • Received:2024-06-27 Revised:2024-12-03 Online:2025-03-05 Published:2025-03-03

Abstract:

This study aims to compare and analyze the effect of weed control fabric (weed mat) on the management of daylily production, exploring changes in soil moisture content and temperature, as well as the impact on growth period, growth morphology, and yield formation of daylily after the application of the fabric. The goal is to provide new ideas for daylily cultivation methods and offer scientific guidance and reference for addressing the challenges faced by the daylily industry in Datong City. Two treatment modes were established in the experimental area: weed control fabric coverage and bare soil. The soil moisture content, growth period, and yield characteristics of daylily under each treatment were measured and analyzed. (1) Covering daylily fields with weed control fabric significantly increased soil moisture content across all soil layers, with an average increase of 2.6%. During heavy rainfall, soil moisture content in deeper layers remained relatively stable. In periods of prolonged drought and little rainfall, the fabric helped reduce water evaporation, thus maintaining higher soil moisture content. (2) In early spring, the fabric effectively increased soil temperature and reduced temperature fluctuations, which benefited the sprouting and emergence of daylily. During cold weather, the fabric reduced the cooling rate at the 5 cm and 10 cm soil depths, providing insulation. In summer, the fabric reduced soil temperature at various depths, with average temperature reductions of 1.5℃ at 5 cm, 0.6℃ at 10 cm, and 0.3℃ at 20 cm. (3) The entire developmental period of daylily under the fabric was advanced compared to bare soil, with significantly higher growth rates and yield increases. (4) The fabric suppressed weed growth and reduced costs, thereby enhancing economic efficiency. The findings of this study provide an effective method for developing the daylily industry in Datong City under drought-prone conditions. Additionally, this research offers valuable insights for improving yield, quality, reducing costs, and increasing economic returns in daylily production. The results are suitable for the large-scale cultivation and promotion of daylily.

Key words: daylily, weed-control cloth, soil moisture content, soil temperature, growth period, yield