CATDOLL : CATDOLL: Can earthworms be raised in sand? (Can earthworms be raised in sand? video)

1. Can earthworms be raised in a mixture of half sand and half mud?

Yes, yes, yes, yes, yes, yes, because earthworms need air and food to survive, sand can keep air circulating, and soil can provide nutrients, so the answer is yes, it can! If there is only soil, it is not absolutely impossible, but it is not as good as sandy soil; if there is only sandy soil, it is difficult to maintain the nutrients needed for earthworm growth. I don't know if this is correct

2. What tools are best for raising earthworms in winter?

When raising earthworms at home in the north in winter, it is recommended to use a simple tool box, such as old shoe boxes or fruit plastic boxes, and just use them according to local conditions.

It is best to control the temperature and humidity by measuring with a thermometer and a hygrometer. Pay attention to sun protection in summer and heat preservation in winter.

The soil should not be too moist, and food such as leftover vegetable leaves, apple cores, sugarcane bagasse, and dried tea residue can be used.

The breeding box should be stored away from light because earthworms are afraid of light. Some sand can be added to the soil to increase the looseness and air permeability of the soil.

3. How to raise red earthworms?

1. Food habits Red earthworms are saprophagous animals that like to live in soils containing a lot of organic matter and are difficult to find in general cultivated land. Therefore, they can be artificially cultivated in large quantities using organic waste from animals and plants. They have a wide range of food habits, and can eat livestock and poultry feces, straw, various fresh and dry grasses, leaves, fruits, vegetable peels, and even slop after fermentation. The amount of food consumed by earthworms in a day is roughly equal to their own body weight, half of which is excreted as earthworm manure. To produce one ton of fresh earthworms, about 70 to 80 tons of organic waste are consumed. 2. Temperature Earthworms are thermophilic animals. Wild earthworms will burrow into the raw soil layer to hibernate during long droughts, severe winters, and high temperature seasons. When raising earthworms artificially, the temperature must be adjusted so that earthworms can grow and reproduce throughout the year. The optimal growth temperature for red earthworms is around 25°C. Earthworms are hermaphroditic animals, but they must mate with different sexes. Sexually mature earthworms (i.e., earthworms with reproductive rings) lay eggs one week after mating. However, the frequency of egg laying is closely related to temperature. When the temperature is below 10℃, it takes about 35 days to lay one egg; when the temperature is between 18 and 25℃, the humidity is 30% to 50%, and the ventilation is good, it usually takes 1.5 to 4.5 days to lay one egg; when the temperature is as high as 35℃, the number of eggs laid decreases. The hatching of egg cocoons is also closely related to temperature. When the temperature is below 8℃, the egg cocoons stop hatching; at 15℃, the egg cocoons hatch young earthworms in about 33 days, with a hatching rate of 97%, and an average of 6.8 young earthworms hatched from each egg cocoon; when the average temperature is 20℃, the young earthworms hatch in 19 days; at 32℃, they can hatch in 10 days, but the hatching rate is only 33%, and an average of 2 to 3 young earthworms hatched from each egg cocoon. During the hatching process, when the accumulated temperature of the egg cocoon reaches 220 to 260℃, the young earthworms can hatch (the accumulated temperature of the egg cocoon refers to the sum of the effective temperatures that can enable the egg embryo to develop, which is accumulated daily after deducting the invalid temperature that stops the hatching of the egg cocoon below 8℃). Therefore, controlling the temperature at 18-25℃ is most conducive to earthworm egg laying and hatching. Young earthworms grow to sexual maturity in about 38 days, and the whole growth period is about 60 days. The egg cocoons produced by an earthworm in a month can gradually hatch 50-80 small earthworms. 3. Humidity Humidity is closely related to the growth, egg laying and egg cocoon hatching of earthworms. The body of earthworms contains about 80% water. If it is not watered for a long time, it will cause the earthworm body to shrink, affect egg laying, and even autolyze and die. When the water content of the earthworm bed is about 30%, the earthworms eat more, grow faster, lay more eggs, and have a high hatching rate. 4. Air According to the experiment of Qian Jinkang in Jinshan District, Shanghai, the number of eggs laid by earthworms raised under two different conditions of air circulation and no air circulation for 30 days was 7.8 and 1.4 respectively, with a large difference. The air generally contains 20% oxygen and 0.03%-0.06% carbon dioxide. If the carbon dioxide content exceeds 1%, it will affect the egg laying of earthworms. 5. pH value Too high or too low pH of the earthworm bed will harm the growth of earthworms, and the pH value of 6 to 8 is appropriate. 2. High-efficiency breeding technology of Taihu red earthworms 1. Site and stocking Earthworms can be raised both indoors and outdoors. The temperature in the south is high in summer and autumn, so indoor breeding is better. However, large-scale breeding can be carried out outdoors, and solar energy can be used to increase temperature at low temperatures. However, the site must be selected near water sources and convenient for transportation. Rural areas can use the gaps beside the village or in the forest. When the breeding area is large, water pipes or automatic sprinklers should be installed. The earthworm bed is generally 5 meters wide, and the middle walkway is 70 to 80 centimeters, but if the feed is delivered by car, the width should be increased. The walkway is filled with more than 30 centimeters, and the two earthworm beds on both sides are 2 meters wide. Ditches are opened on the outside of the two earthworm beds to facilitate drainage. After the earthworm bed is completed, the fermented feed is placed horizontally on the earthworm bed in a strip shape of 20 to 30 centimeters wide, with a spacing of 10 to 15 centimeters. Before placing earthworm seeds, wet the earthworm bed first, then place the earthworm seeds in a place without feed, with a stocking density of 0.5 kg/m2 (about 1,000), and then add some water to facilitate earthworm activity. Avoid placing earthworm seeds after the earthworm bed is full of animal manure to avoid loss of earthworm seeds. 2. Add feed at the right time Taihu red earthworms have a wide range of diets and eat almost everything, but the key is that the feed must be completely decomposed. Composting takes 30 days, or it can be dug into a pond. It is better to ferment water plants, green grass, fruits, vegetable peels and swill in poultry and livestock manure water. Because the food that earthworms eat in a day is roughly equal to their own weight, it is necessary to add feed "at the right time". "At the right time" means collecting earthworms and adding feed when there is still 20% feed in the earthworm bed. The added feed must be in the shape of a plum blossom, leaving a gap of 5 to 8 cm between the piles. If the livestock and poultry manure is too thin, pour it in strips. Leave 1/3 to 1/4 of the gap area and water before adding feed. Thunderstorms can easily flatten the cow dung that has just been added one or two days ago, forming a compacted and airtight surface. The earthworms will feel suffocated and the ground temperature is high. The earthworms on the edge of the worm bed will crawl into the ditch, and some will jump to the surface of the worm bed. If there is still unfermented animal dung that is producing methane, the earthworms will die immediately. Therefore, it is necessary to observe frequently before and after thunderstorms. If there is no grass covered after adding materials, the animal dung that has just been added to the worm bed should be spread out 20 cm wide before and after thunderstorms. In winter, covering the worm bed with a thin layer of material will also cause the death of earthworms. If there is no addition of materials and no watering for a long time, the earthworm body will shrink. When the earthworm cannot survive, it will self-dissolve and die, but it will leave a batch of egg cocoons. If conditions permit, EM biotechnology can be used. This is a high-tech technology introduced from Japan by Jiangsu Province in 1991. It is an effective microbial community, such as 10 bacterial genera such as nitrogen-fixing bacteria and lactic acid bacteria, and more than 80 bacterial species. This bacterial community has the functions of accelerating the maturation of various organic fertilizers, improving soil fertility, reducing pests and diseases, and purifying the environment. It can also promote crops, livestock, poultry, and fish to be in a better ecological environment and growth state, and use less or no pesticides and fertilizers. Spraying diluted EM liquid on animal manure and earthworm bed bait can remove odor, inhibit the reproduction of harmful bacteria, and reduce the damage of lice and flies. Earthworms eat organic waste such as animal manure fermented by EM, and beneficial bacteria reproduce in their bodies and are absorbed as nutrients, enhancing disease resistance. Earthworms grow fast and have a high reproduction rate. In 1995, I used EM to raise earthworms indoors for 85 days, and the number of earthworms increased by 65.9 times, which was 51.6 times more than the control group (spraying water), and 14.3 times more. In addition, the earthworms sprayed with EM were slightly thicker, slightly reddish and strong. Write these first. 3. Moisture retention and ventilation. The earthworm bed is a place for raising earthworms. We must pay great attention to temperature, humidity and ventilation. Water it frequently to keep it moist. Water it once a day in summer, once every 5 to 10 days in low temperature period, and once every 3 to 5 days in cool period, so that the humidity is kept at around 30%. And we must seriously cover it with grass all year round to keep it moist and ventilate. This can promote earthworms to eat more, grow faster, lay more eggs, have a high hatching rate of egg cocoons and a high survival rate of young earthworms. We conducted a comparative test of covering with grass in 1994, and the results showed that the earthworm yield of the earthworm bed covered with grass curtains increased by 80%. In addition, if a large thunderstorm occurs after covering with grass, it can prevent the surface of the earthworm bed from becoming compacted and earthworms from encountering methane gas and causing death. During the low temperature period, a few farmers did not manage the business well, resulting in earthworm atrophy and low egg production. There are many reasons for this, such as long-term lack of watering, untimely addition of feed, etc. The most important reason is that ventilation is not done well. Under hypoxic conditions, earthworms are dark brown and dull, weak, slow in movement, and many of their offspring die. In particular, livestock manure that has not been fully fermented will continue to ferment in the film, producing methane that harms the earthworms. Due to lack of oxygen, fish will float to the surface and are easy to find. However, earthworm beds covered in film are not easy to find due to lack of oxygen. Only by doing a good job of ventilation, increasing oxygen, and expelling harmful gases can this be done. There are two ways: 1. Shovel out the cocoons and place them on the nearby earthworm bed or on the algae film. The depth should be so deep that there are basically no earthworms under the shovel.

4. How to make earthworms grow strong at home?

How to grow earthworms at home? Earthworms grow well in sand or rotten grass.