What is the suitable stocking density of shrimp in a large area of tidal flat?

There are convenient and high-quality water sources. Very important, how important, not marked here. If the water source is inconvenient, it is necessary to drill for emergency. Well water should be aerated with a filter cartridge and then discharged from the shrimp pond. Otherwise, it is easy to lack oxygen.

Details of shrimp pond renovation:

Building many ridges is helpful for crayfish to dig holes and breed. Smaller oil fields are usually easier to manage. If it's a field, you must do a good job in the middle and divide the field into 10-20 mu.

The cowshed should be built higher so as to maintain a higher water level in summer. The external ridge shall be at least 1.5m higher than the platform. At present, rice and shrimp farming with saplings sold in spring as the main import source may not realize the importance of walnut improvement, so it is not important. You'll understand in a few years.

Many people think it is unnecessary to clean up the new party. I'm too lazy to emphasize that love is not obvious. Clear hall should have the appearance of clear soup. The amount of quicklime should be sufficient. 80 ~ 100 kg per mu should not reduce the number of workers, 20 ~ 30 kg, 30 kg, 30 kg and 50 kg are uneven, and it is best not to use 3 ~ 4 kg. Clear pond should be filled with paddy fields, and the water level is preferably 3 ~ 5 cm. If you want to double the dose 10 cm. Bleach can be used, but the comprehensive effect of quicklime is definitely better than bleach. Although it's a little troublesome, I'm too lazy to talk about the benefits of clear soup.

Preventive measures for miscellaneous fish in drainage ditch;

For the purpose of 40-60, the wheat filter bag is stationed in the drainage ditch, and the number of miscellaneous fish and shrimp in the shrimp pond can be greatly reduced by tens of dollars and small details. Otherwise, it will be difficult to clean the pond, and soon the fish in it will flock again. How many people killed hundreds of pounds in July, August and September?

Plant Elodea in winter, Hydrilla yunnanensis and hybrid grass in summer, and supplement a small amount of aquatic plants. Grass should be diversified, preferably the trinity of land and water. Many new party owners always like to hear the new party say that there is no need to plant grass, and I am too lazy to refute it. Don't sow the seeds of mourning.

Reasonable delivery:

Aquatic plants are not for shrimps, but for lobsters. Feed whatever you should. Don't save money on that feed. Anyway, shrimp is more valuable than feed. Crayfish is in a vigorous growth period. It will take several days to feed on rainy days because of thunderstorms. Be careful not to damage your grass pond. Strange weather can help you lose weight, but you can't feed it.

Should crayfish be fed in winter? Feeding should be based on temperature theory, not seasonal theory. Five degrees up and down once a week; 10 degrees up and down for 2 or 3 days; /kloc-above 0/5 degrees, feed daily, a small amount. Observe the diet specifically.

The bottom must be repaired regularly, detoxified and watered. Biologically, it is mainly to transform the bottom layer, and cultivating bacteria has many benefits for cultivating algae. Regularly use chemical prescription detoxification products to prevent excessive accumulation of toxic substances in water and prevent them from exceeding the regulatory capacity of bacteria and algae.

10 After the rice was harvested in the rice shrimp field, the straw began to rot, producing red and black water, which greatly stimulated the lobster. EM spores should be used in time to decompose and release fertilizer, and the effect may be the same as fertilizer. You may change the water or lose some fertilizer efficiency. In any case, the black water should be treated in time.

Pay attention to fat and water in winter. Water is not fat, moss is raw, and I am tired. Fertilizer can not only inhibit moss, but also cultivate plankton into the opening substance of lobster fry, thus increasing the water temperature in winter. The fertilizer efficiency of commercial organisms is fast and short, and simple use must continue. Otherwise it's a waste of money. Fermented cinnamon powder sheep manure is a treasure, which can be used reasonably and save money effectively.