Received: 24-06-2022
Accepted: 27-09-2022
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Effect of Silicon Fertilizer Application on Growth and Anatomical Characteristics of Mondo grass (Ophiopogon JaponicusWall) underNon-irrigated Conditions at Ha Hoa District, Phu Tho Province
,
Nguyen Dinh Vinh
1
,
Nguyen Van Phu
2
Keywords
Ophiopogon japonicusWall, non-irrigated, silicon, anatomy, Phu Tho
Abstract
The study aimed to evaluate Mondo grass’s growth, productivity, and anatomical characteristics when fertilized with silicon under non-irrigated conditions. A two-factor experiment was conducted in Ha Hoa district, Phu Tho province according toa split-plot design on ferralic gray soil with 6 levels of silicon (0, 20, 30, 40, 50, 60kg SiO2/ha/year) and 2 varieties of Mondo grass (G2 and G6). The results showed that under non-irrigated conditions, the growth of the G6 variety was better than that of G2. The supplemental application of silicon brought about better effect on Mondo grass, increasing the depth and width of the root system, and the leaf area and enhancing the tillering ability and dry matter accumulation. The change in the anatomical structure of Mondo grass leaves and roots increases the ability of the plant to absorb and conduct water better. On haplic acrisols, the level of fertilizer application of 30kg N + 30kg P2O5+ 30kg K2O + 40kgSiO2/ha was is considered suitable for Mondo grass. At this level, the yield of Mondo grass was the highest (at 3.7 tons/ha), an increase by 27.6% compared to the non-silicon treatment. Therefore, the use of silicon supplements is recommended to reduce the harmful effects of water shortage on the growth and development of Mondo grass.
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