Document Type : Original Article
Authors
Ornamental Plants and Landscape Gardening Res. Dept., Hort. Res. Inst., ARC, Giza, Egypt
Abstract
This research was carried out in the open field at the Nursery of Hort. Res. Inst., ARC, Giza, Egypt, during 2022 and 2023 seasons, to assess growth, covering density, and various chemical constituents of Paspalum vaginatum, Swartz under distinct fulvic acid rates (0.0, 2, 4, and 6 ml/l), magnesium sulfate concentrations (0. 0, 40, 80, and 120 ppm) as foliar application and the interaction between treatments. The results indicated that plants given fulvic acid or magnesium sulfate, separately or in combination, produced the greatest values in plant height, along with fresh and dry weights of herbs and roots per bed when contrasted with the control. The paspalum plants treated with 6 ml/l alone or in combination with MgSO4 at 120 ppm exhibited the highest percentages of NPK, carbohydrates, and a notable increase in total chlorophyll. Overall, the dual treatment of 6 ml/l of fulvic acid and 120 ppm of magnesium sulfate demonstrated a beneficial effect by enhancing N, P, K, and total carbohydrate percentages along with chlorophyll content that are vital for plant growth and covering density, it contributed to improving the grass appearance under the existing experimental conditions. Therefore, it is advisable to apply seashore paspalum with 6 ml/l of fulvic acid and 120 ppm of magnesium sulfate alternately every month to enhance growth and achieve a high coverage rate.
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