Chinese name: Long Ye Jiuguan

Latin name: Echinodorus uruguayensis

Family: Alismaceae

Hardness: 2-12 DH

Distribution area: South Brazil, Uruguay, Argentina, Chile

1. Morphological characteristics of long leaves and nine crowns

Long leaves and nine crowns Plant, with water grass and water grass, its shape is one, when used as water grass, the leaves are arranged in rosettes, the leaves are oblong oval or oblong, the leaves are dark green, the top is acuminate, the veins are obvious, 5 parallel Distribution, in which the midrib is the most obvious thick. When used as water grass, it is similar to water grass, but its young leaves are tea-red, and the leaves also have 5 leaf veins distributed in parallel. The mature leaves have only 3 leaf veins, and the other 2 are inconspicuous or disappeared. The leaf color of mature leaves is emerald green. , the apex of the leaf is undulating and rolling, and the overall leaf is also called linear, which is just a more characteristic part of the plant.

2. Habits of long leaves and nine crowns

The suitable temperature for the growth of long leaves and nine crowns is between 18-28℃, the pH value is between 6.0-7.0, and the light intensity is 1500Lux. The water leaves of aquatic plants are kept in water for a short time and cannot be directly converted into water leaves. The water leaves gradually wither after they grow in water. However, it should be noted that the water quality should not be too alkaline. The plants prefer softer and more acidic water quality. It can grow normally in softer water, but it will be hindered in hard water. Sex likes strong light and enough carbon dioxide to grow well. The water needs to be changed regularly for more lush growth, and the location of the water tank is suitable for the middle and background.

3. Cultivation of Long-leaf Nine Crowns

The cultivation of Long-leaf Nine Crowns is not very difficult, and carbon dioxide needs to be added during planting, under the condition of good growth. Plants are very sensitive to changes in light and pH. Cut off the top of the stem, remove the base leaves and insert them into the sand bed. The insertion depth is suitable for the third pair of leaf nodes just exposed to the sand surface. The water level should not be too deep. Pay attention to controlling the water temperature. Pay attention to the need for soft water during cultivation. Afterwards, it can be irradiated with strong light or properly fertilized. It should not be too concentrated to ensure that the plants can absorb nutrients normally, so that the plants can grow well. There must be a balanced light source during the growth period, otherwise the growth will be poor.

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