1. The construction of Dianchi Lake is based on the general construction method described above. The area of ​​the pool is 30 to 50 square meters, and the height of the pool wall is 0.8 to 1 meters. The entrances and exits are located at the opposite corners, and anti-escape facilities are installed.
2. Pile up the earthworms. Pile up a number of earthworms (1 to 1.5 meters in width and 20 to 25 centimeters in height) in the pool (for loamy soils with rich organic matter).
Third, after the cultivation of earthworms is completed, the water in the ditch will be maintained at a depth of 5 to 10 cm. The Daping No. 2 蚯蚓 2.5 to 3 kilograms per square meter of soil and the fermented livestock manure of 4 to 5 cm in thickness were placed on the surface to serve as bait for quail. In the future, every 3 to 4 days, the upper layer of livestock manure will be shoveled and re-plated. This is repeated. After about 14 days, the earthworms will be propagated in large numbers, and then they can be planted. Clams can provide most of the bait for spring, summer, and autumn for yellow buckwheat.
Fourth, stocking density per square meter Dianchi stocking specifications for 50 per kilogram of wolfberry species 3 to 4 kg, the survival rate of up to 90% to one, out of the pool when the weight of each tail up to 100 grams or more.
5. In the 4th day of the mixed pond snail cultivation, 10 kg of snails were placed in the Dianchi Lake per square meter. In addition, raise some water lotus or duckweed on the water. The cultivated snails are mainly to solve the feed problems of the early spring jaundice; the water lettuce and duckweed can perform photosynthesis, increase the amount of dissolved oxygen in the water of the Dianchi Lake, and improve water quality.
Six, feeding and management.
(1) When feed supplementation is insufficient, the feed needs to be supplemented and can be fed with spit and quail meat and mixed feed. When there is a surplus of food, fish must be salvaged from the pond in time.
(2) To raise the microbes, diatoms, and fish residue baits in the soil that the snail snail eats. When the yellow clam grows up, it can ingest larger snails. Therefore, the snails should be supplemented according to the feed conditions.
(3) The water depth controls the depth of water to be about 10 cm, and there must be micro-flowing water. At the same time, do a good job in routine management such as flight prevention, disease prevention, and prevention of enemy damage.
Absorbent is also called absorbent. This substance can make the active ingredient adhere to the surface of its particles, and make the liquid trace compound additive become a solid compound, which is beneficial to the uniform mixing. It is a solid substance which can adsorb some of its components effectively from gas or liquid. It has large specific surface area, suitable pore structure and surface structure, strong adsorption capacity for adsorbate, generally does not react with adsorbate and medium, is easy to manufacture and regenerate, and has excellent adsorption and mechanical properties. Adsorbents are generally used in industrial production, so adsorbents can be divided into six categories according to the common industrial use.
1. silica gel, it is mainly used for drying, gas mixture and separation of petroleum components.
2. alumina, it is also a dehydrating adsorbent.
3. activated carbon is mainly used for water treatment, decolorization and gas treatment.
4. polyacrylamide is mainly used for domestic sewage and organic wastewater.
5. zeolite molecular sieve for gas adsorption separation, gas and liquid drying;
6. carbon molecular sieves mainly act as transport channels, while micropores play the role of molecular sieves.
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