CATDOLL : CATDOLL: When raising fish in rice fields, what kind of fish species should be chosen?

When raising fish in rice fields, what kind of fish species should we choose?

First of all, the water level in our rice fields is generally about 20 cm. According to the living habits of fish, we usually mainly raise crucian carp and carp. Moreover, we should open the fish fry to the rice seedlings after they grow to 20 cm, that is, when the seedlings are 15 days old. At the same time, we should dig a relatively deep puddle in the middle of the rice field, and the water level of the puddle should be above 30 cm. The area of ​​the puddle depends on the number of fish raised and the area of ​​the rice field. In this way, the fish can avoid the relatively hot temperature in summer and improve the economic benefits of fish feeding. It is generally not recommended to raise carp in rice fields, because carp is a species that eats fish quickly and will eat seedlings.

It affects the growth and yield of rice, so rice field fish farming generally uses carp and crucian carp as the main free-range species. Rice field fish farming is very common in our rural areas, especially in the fields of ethnic minorities in mountainous areas. They like to feed fish in the fields, and rice flower fish is representative. Using the river surface of the rice field to feed fish can, on the one hand, obtain fish, and on the other hand, increase the yield of rice. Farmers get double benefits. Rice field fish farming is mainly based on crucian carp, and carp can also be raised. Generally, it is free-range when the seedlings turn green. If it is released too early, the carp will eat the seedlings. Therefore, I suggest that rice field fish farming should try to raise crucian carp. There are eight advantages of raising carp: carp meat is delicious.

From the perspective of gourmet food, braised, steamed, and blanched are all delicious. Because crucian carp meat is tender and fine, rural weddings and funerals all like to make a whole crucian carp dish as the main dish. Crucian carp has strong adaptability. When feeding fish in the field, there are all kinds of extreme conditions. The water is sometimes deep and sometimes shallow, and the water temperature fluctuates. In such conditions, crucian carp can survive. Crucian carp is carnivorous. In rice fields, crucian carp is omnivorous and can eat all kinds of insects, soft animals, and plankton. It is not picky about food and does not need to be specially promoted with fish feed. Therefore, ordinary people like to raise crucian carp. Carp fry can be self-bred and self-raised. Crucian carp breeding technology is simple, and the survival rate of fry is high, so it is easy to get shrimp species, and the fry on the market is also cost-effective.

Farmers can easily buy fish fry, so ordinary people like to raise carp for food. Carp has a strong disease resistance. When feeding fish in the field, the biggest worry is that the fish will get sick, because the rice field environment is complex and the fish are prone to disease. However, crucian carp has a stronger disease resistance than other fish species, so farms like to raise crucian carp. , carp grows fast. Because the food source in the rice field is rich and abundant, crucian carp has a strong appetite and is more greedy, so it grows fast. Crucian carp will increase the yield of rice. Crucian carp will eat all kinds of wild insects and various harmful animals in the water. At the same time, crucian carp likes to drill the soil, help the rice field to turn the soil, promote the dissolution and absorption of fertilizers, and at the same time, the excrement of crucian carp is also fertilizer. Raising crucian carp in this way will definitely increase the yield of rice.

Carp, tilapia, crucian carp. Because these fish are very easy to survive, and their main food is grass in the rice fields and some small insects, they can not only clean up the farmland, but also are easy to feed.

You can choose grass carp, tilapia, crucian carp, or carp. These fish are particularly easy to raise.

You can choose carp and grass carp. The survival rate of these two fish is very high, and the economic benefits are also relatively good, so many people will buy them.

Key points of rice field fish farming technology, what kind of fish to raise

1. Insist on patrolling the fields: patrol the fields in the morning and evening, and observe whether the fish float to the surface and whether their activities and growth are normal in the early morning. 2. Clean the fish ditches and fish pits: The fish ditches and fish pits are the main places for fish activities. They are prone to siltation after a period of time. They should be cleaned frequently to dredge the silt in the fish ditches and fish pits. 3. Adjust the water level: according to the characteristics of different growth stages of rice, adjust the water level in time. The water depth should be 6-8 cm from transplanting to the late tillering stage to facilitate the rooting, greening, rooting and tillering of the seedlings.

1. Key points of rice field fish farming technology

1. Keep patrolling the fields

(1) First of all, you must inspect the fields in the morning and evening. In the morning, observe whether the fish appear to float to the surface and whether their activities and growth are normal.

(2) At night, be sure to check the feeding situation, check whether the ridges are leaking, and whether the water inlets and outlets are unobstructed. If any problems are found, they must be repaired in a timely manner.

2. Clean fish ditches and fish pits

(1) Fish ditches and fish pits are the main places for fish to move around. If they are not cleaned for a long time, they will become silted up. Therefore, they must be cleaned regularly to clear the silt in the fish ditches and fish pits and remove grass residues and leftover bait to ensure unobstructed flow.

(2) When tilling the soil and planting rice, be sure to prevent mud from flowing back into the fish pond. In hot seasons, you can build a shade shed over the fish pond to ensure the fish can safely spend the summer.

3. Adjust the water level

(1) The water level can be adjusted in time according to the characteristics of different growth stages of rice. The water depth should be 6-8 cm from transplanting to the late tillering stage. This is conducive to the seedlings taking root, returning to green, rooting and tillering.

(2) At this time, the fish are relatively small and shallow irrigation can be used. In the middle period, when rice is in the heading stage, it needs a lot of water. The water in the field must be gradually deepened to 15-16 centimeters. This is because the fish will gradually grow bigger, their swimming intensity will increase, and their food intake will increase. Deepening the water level is beneficial to the growth of the fish.

(3) In the late stage of rice heading and filling, the water level should be adjusted frequently, generally maintaining around 10 cm.

4. Flood control and drought relief

(1) Due to abnormal climate in recent years, floods and waterlogging disasters have occurred frequently, and fish farming in rice fields is very likely to be affected.

(2) During droughts, we must pay attention to storing water to protect fish and conserve water. When typhoons and rainstorms come, we must be prepared to prevent the fields from overflowing and the fish from escaping.

(3) If there is a fish pond in a rice field, you can gather the fish in the pond and surround it with a net, or add a net cover on top of the pond. This will help protect the fish and prevent them from escaping.

2. What kind of fish is good to raise in rice fields?

1. The stocking species of fish in rice fields are mainly herbivorous and omnivorous fish, such as grass carp, carp, crucian carp, tilapia, etc. Some silver carp and bighead carp can also be stocked, but it should be noted that bream cannot be stocked. In the nursery field for cultivating summer flowers, 30,000 to 50,000 fish can be stocked per mu; in the rice-fish field, 1,500 to 2,000 5-7cm summer flowers can be stocked per mu; if edible fish are raised, 300 (summer flower) carps, 100 crucian carps, and 50 silver carps and bighead carps can be stocked per mu in the double-season rice field.

2. Rice and fish can be rotated and fed. 100-120 grass carps, 150-200 carps and crucian carps, 30-50 silver carps, and 2-10 bighead carps can be raised per mu, and 200-250 kg can be produced per mu. The stocking time must be early. For single-season rice field fish farming or rice-fish continuous cropping, edible fish are generally released after the rice seedlings are transplanted and green. In rice-fish rotation, water can be irrigated and fish can be raised immediately after the rice is harvested, and fish can be caught before transplanting the rice seedlings the following year.

3. The main fertilizers for fish farming in rice fields are farmyard manure and base fertilizer. When using chemical fertilizers, you must master the safe concentration to avoid directly spraying them into the fish ditch. You can rotate the fertilizers in half of the field. The concentration of pesticides must be strictly controlled. Commonly used drugs include dimethoate, methyl parathion, trichlorfon, dimethoate, and jinggangmycin. The more toxic ones include furadan, dervine extract, sodium pentachlorophenol, chlorpyrifos, Bordeaux mixture, etc. These drugs cannot be used.