Pond species of fish culture technology

Pond species of fish culture technology

Water chestnuts are nutritious. According to information, the lozenge contains 4.6% sugar, 5% protein, 0.7% fat, and calcium, phosphorus, and iron. Meat can be used as fruits, dishes, processed into powder is an important raw material for the food processing industry. Lings can be used as feed and fertilizer. Ponds and other bodies of water to implement the Ling-fish combination, better efficiency.

(I) Pond conditions

In order to use a pond with sufficient water, good water quality, convenient drainage and drainage, and a water depth of about 2 meters, the pond has a slightly thicker silt and long illumination time. Before the fish species are stocked, the water depth of the pond is kept at 6-10 cm, and 75-100 kg of lime are used per 0.067 ha. The pool is evenly sprayed to kill pathogens.

(b) Characteristics of Ling

The water chestnut is an annual herbaceous floating leaf aquatic plant with long stems and strong adaptability. It lives in soft soil such as ponds, lakes, river channels, aqueducts, and deep water lake fields. It is said to have sprouted above 13 degrees Celsius, intolerant to frost, and adapted to grow in waters with a depth of about 2 meters. It usually takes about 150 days from seed germination to fruit ripening.

(three) planting methods

Before the water chestnuts are sown, wild plants such as pond grass and moss are removed. Seed before and after Qingming. Before planting, seedlings are placed in a bamboo raft and germinated in a shallow pool. The teeth grow to 1-1.5 cm. The method of sowing seeds is best, with a spacing of 2 meters. Bamboo sticks are inserted at both ends of the plant line as a marker. One person will plow and one person will sow. Each will use 23-25 ​​kilograms and about 1200 strains per 0.067 hectare.

(d) Fish stocking

In the seedling pond, it is possible to adopt a combination mode of seedlings. Stocking species, except for grass carp and alfalfa, alfalfa, cockroach, cockroach, cockroach, etc. can be stocked. Because grass carp will eat Ling Ye, Ling Ling. There is arch mud habit. For each 0.067 hectare of water, 15 kg of stocked fish are stocked, about 400 of which are stocked with 45%, 30%, 15%, and 10%. In front of the fish ponds, fish were soaked with 2%-4% saline for 4-5 minutes to prevent disease.

(v) Pond Management

1, fertilization: divided into base fertilizer and top dressing. Due to the thicker silt in the seedling pond and fertile soil, no base fertilizer is generally required. If the sludge is shallow and the soil is thin, 3000-4000 kg of Shitang mud per 0.067 hectares will be required as base fertilizer. In the flowering stage of Lingshen, foliar spraying of 1%-2% phosphorus and potassium fertilizers was sprayed once every 7 days for 2-3 times. Fertilizer can be manure-based, but it must be fermented into the pond. Application of organic fertilizer, depending on the status of water, such as thin, appropriate to grasp the amount of fertilizer. General thin water more fertilization, fertilizer and water less or not applied. The transparency of the pool is better to keep 25-30 cm.

2, adjust the water quality. For ponds that are mainly manure-fed, new water should be replenished regularly, 1-2 times per month, and each time new water should be added 20-30 cm.

3, adjust the pH value. After quicklime is used, the whole pool is splashed with water, 1-2 times per month, each time 10 kg for every 0.067 hectare.

4, often patrol the pond, observe the fish's activities, and do a good job of anti-pan-tang, disease prevention, anti-theft and other work.

(6) Harvesting

Pickling is generally started in September and picked up every 7 days or so. It was picked in late October. At the same time of picking the ridge, according to the following year's planting production plan, the large-grained and old-maturing linguistics were selected. In the conservation method, the diamond seed is placed in a bamboo raft, and the bamboo raft is suspended on a water bamboo frame without exposing the water surface and leaving it under the mud so as not to suffer frost rot.

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