The net profit from cultivating one acre of earthworms is about 6,000 yuan. The technology of earthworm breeding is not complicated, easy to master, and the breeding profit is good, which is better than planting traditional crops. The cost of earthworm breeding mainly includes feed, earthworm species, land occupation fees, water and electricity, etc. 1. Annual investment cost 1. Cost of earthworm bait (pig manure, cow manure, chicken manure, mushroom scraps, etc.): Total ***200 cubic meters, calculated at 10 yuan per cubic meter, 2,000 yuan. 2.40 kilograms of self-breeding earthworm species, calculated at 20 yuan per kilogram, costs 800 yuan per day. 3. Rent: 200 yuan per mu. 4. Miscellaneous expenses such as water, electricity, etc.: Calculated based on 1,000 yuan. The total investment is: 4,000 yuan. 2. Total annual income 1. Income from selling earthworms: One acre of earthworms can produce about 2,000 kilograms a year. Calculated at 2 yuan per kilogram, the annual income is about 4,000 yuan. 2. Income from selling vermicompost: About 40 tons of vermicompost can be produced. Calculated at 150 yuan per ton, the annual income is about 6,000 yuan. The total income from the two items is: 10,000 yuan. 3. The net profit that can be obtained is 10,000 yuan - 4,000 yuan = 6,000 yuan. To sum up, the theoretical profit from cultivating one acre of earthworms is about 6,000 yuan, which is much higher than the profit from planting traditional crops in rural areas! What are the techniques for earthworm farming? 1. Feed processing field: The feed processing field includes the accumulation, fermentation, sorting and crushing of feed. The area depends on the scale. 2. Breeding workshop: brick-wood structure or plastic shed can be used. The temperature is controlled at 18~28℃. In winter, temperature control equipment can use boiler heating, solar water heaters or waste heat from other factories for heating. In summer, ventilation, water spraying, reducing breeding piles and other measures can be used to cool down. The appropriate width of the breeding workshop is 4 to 5 meters, the appropriate width of the plastic shed is about 7 meters, the length is determined according to needs, such as 30 meters, 60 meters or 100 meters, and the appropriate height is 2 meters. 3. Breeding bed: The width is preferably 1-5 meters. A 40cm high low wall should be built on one side, and a 10cm high ridge should be set up on the side close to the walkway. The bed surface is slightly inclined, and the height of the inside is slightly lower than the outside, which is conducive to the discharge of excess water in the feed. A wash basin with a width of 25 cm and a depth of 25 cm is set around the breeding bed to provide drainage and prevent rodent and ant damage. There is a 1- to 2-meter walkway between the two beds. 4. Feed fermentation tank: In the breeding workshop, a feed fermentation tank can be set up outside the two beds. In winter, fresh horse, cow, and pig manure can be released to use fermentation heat to increase the temperature of the greenhouse. In summer, it can be used as an egg cocoon incubation bed. 5. Breeding density: The number of earthworm species raised in cow dung should be controlled within 10,000 per square meter. The earthworm population is 3 kilograms per square meter (2-3, 10,000), 30,000 larvae per square meter in the early stage, and 20,000 in the later stage. Only. 6. Timely feeding: Earthworms need abundant organic waste and other materials, such as pig, cow, horse, chicken manure, and various garbage.