How to choose the seeds of bitter grass? What are the methods of raising seedlings?

Sophora flavescens is also called Dendrolimus angustifolia, because its leaves are flat and long, like a pole. Bitter grass is one of the favorite aquatic plants for crayfish, and it is also the bait for crayfish to change its mouth during the change of season. now crayfish culture ponds basically plant bitter grass. So how to choose the seeds of bitter grass? What are the methods of raising seedlings? Next, let's have a look with the editor.

First, how to select the seeds of bitter grass?

The seeds of Sophora flavescens should be full, glossy, black or black, with a length of more than 2 mm and a maximum diameter of not less than 0.3 mm. The seeds of natural wild bitter grass are better, which can improve the tillering ability of the offspring.

Choose sunny weather to dry the seeds for 1-2 days and soak the seeds in pond water for 12 hours before sowing.

What are the seedling raising methods of Sophora flavescens?

1. Sowing and raising seedlings

Sow the seeds of Sophora flavescens so that they can germinate and grow. When sowing and planting, the time span can be relatively large, from winter to spring can choose to sow seeds. But the difference is that when sowing in winter, you can use the sun pond to plant the plant on the pond shoal, and then use a pear rake to stir the soil and seeds together. When sowing in spring, there is usually water in the pond. At this time, the seeds can be wrapped in soil and thrown into the pond.

After sowing, the seeds will sprout and grow slowly after the temperature rises to 15 degrees.

2. Insert bar

Cuttings are usually planted from March to April, when the temperature is more than ten degrees, which is suitable for the growth of Sophora flavescens. The already grown stem of Sophora flavescens can be selected for cutting planting. The length of the stem is about 10 cm-15 cm, and then cut directly in the pond shoal, the row distance is generally between 30-40 cm, and can survive in a few days.

3. Transplanting

When the seedling has two pairs of true leaves, it is best to transplant when the height is 7-10cm, the row spacing of the planting plant is 25cm-30cm or 26cm-33cm, and the rice "seedling throwing method" can be used to put the bitter grass seedlings in the shrimp water.

The above is the introduction of Sophora flavescens. If the water plant is too dense, it should be treated in time in order to stir the water body, control the growth and reduce hypoxia. When patrolling the pond every day, the grass floating on the surface of the pond should be fished out so as not to damage the water quality and affect the photosynthesis of aquatic plants at the bottom of the pond.

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