Abstract:
Objectives To address the issues of weed proliferation and green scarcity in economic forests during the winter season.
Methods From 2021 to 2023, two types of grass cultivation experiments were conducted in three different locations: the Qingyuan Camellia oleifera forests, the Songyang Chinese Torreya forest, and the Liandu kiwi tree base. The objective was to compare the grass suppression effects of three different methods: clearing cultivation, Trifolium repens, and Vulpia myuros. Additionally, the winter greening effects of T. repens, and V. myuros planted in the kiwifruit base were compared, and the winter greening effects of the two were evaluated based on eight indexes: lawn density, cold resistance, disease resistance, drought resistance, green period, color, grass resistance, and management and care difficulty.
Results The inhibitory effect of the T. repens group was obsered to range from 58% to 94% in the first year and and from 87% to 98% in the second year. The inhibitory effect of V. myuros in the first year was 93% to 94%, and in the second year, it reached 98%. The inhibition rate in the V. myuros group was observed to be higher than that in the T. repens group. The experiment on green protection in winter revealed that V. myuros was more conducive to the growth of kiwi fruit in soil conditions than T. repens. Compared with the quality evaluation standard of winter-type lawns, the score of V. myuros was found to be higher than that for T. repens.
Conclusions The inhibitory effect of V. myuros was superior to that of T. repens, indicating that the cultivation of V. myuros under deciduous economic forests has a more pronounced inhibitory effect. Furthermore, V. myuros was found to be more effective than T. repens in providing winter green protection.
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