How to transplant aquatic plants in crab culture ponds

Aquatic plants play a very important role in crab culture ponds. In order to create a natural environment for artificial breeding of crabs and increase the adaptability of crabs to the pond environment, transplanting and cultivating aquatic plants has become an important part of raising crabs in ponds.

Select variety

The main results are as follows: 1. According to the superiority of crabs in the utilization of aquatic plants, the species and quantity of transplanted aquatic plants are determined, which are mainly submerged plants and water-standing plants, supplemented by floating leaves and floating plants.

2. According to the feeding habits of crabs, transplanting aquatic plants can cultivate more crabs like bitter grass, verticillium verticillata, fine goldfish algae, and other species of aquatic plants are properly less transplanted, which play a complementary role in regulating and complementary, which can improve the water quality of the pond and increase the dissolved oxygen in the water. It is very good to improve the transparency of water body.

Transplant method

1. At the bottom of the dry rivers and lakes, the selected bitter grass and verticillium verticillata are shoveled to the bottom of the crab culture pond and buried in the soil, so that they can grow automatically at the turn of spring and summer.

2. The root system of verticillium verticillata is well developed, each plant is of different length, and many stem nodes can root and grow. Collect the whole aquatic plant, wrap the root or phimosis node with wet clay into a ball, put it into the crab culture pond, plant it once and grow every year. Transplanting bitter grass can also dig up the roots, wrap the roots with soil and put them into the crab culture pond.

3. The seeds of aquatic plants are collected in late August every year. The fruit of Sophora flavescens bears on a slender stalk and is linear with sharp spines at both ends of the seeds of verticillium verticillata. When collecting, dry together with aquatic plants, crush them and store them, and sow them in selected crab ponds in the following spring.

Matters needing attention

The main results are as follows: 1. In the shallow water area of the crab culture pond, it is appropriate to cultivate more water-standing plants, such as Prunus grass, Reed, Zizania caduciflora, etc., these plants are easy to cultivate and have a high survival rate, which can not only improve the water quality environment of crab life, but also obtain certain economic benefits.

2. Some submerged plants and floating-leaf plants can be properly transplanted in the deep water area of the crab culture pond, such as puccinellia oleifera, water shield, water chestnut and so on. These plants have developed roots and strong vitality, but they can not be transplanted too much, because their vigorous growth will affect the reoxygenation of the pond water and is disadvantageous to the growth of crabs.

3. The aquatic plants planted in the crab culture pond can grow naturally, generally do not apply manure, just apply some chemical fertilizer properly. The growth of aquatic plants can absorb ammonia nitrogen in water, dilute the fertility of water, increase dissolved oxygen and transparency in water, meet the needs of crab growth and development, and significantly improve the meat quality of crabs.