Earthworm Farming Techniques and Profit Table Explained

SummaryEarthworm farming techniques: A water pit connected to a ditch can be modified for farming. Add 7.5-10 kg of livestock and poultry manure or farmyard manure per sq m, along with 0.25-0.5 kg of seed earthworms. Feed can include cow manure, pig manure, straw, and other materials. During farming, the temperature should be maintained at 20-27°C, and air humidity should be kept at 70%-80%. Generally, the net profit from farming earthworms on 1 mu is about 15000 yuan.

I. Earthworm Farming Techniques

1. Building the pit pond

(1) A water pit connected to a ditch can be modified for farming, with an area of 3-5 sq m and a water depth of 20-25 cm. The bottom of the pit pond should be built with loess or lime-sand-clay mixture that has good water retention, and an inlet and outlet should be set up.

(2) Then dig fertile fish pond sludge and spread it on the pit bottom to a thickness of 10 cm. Add 7.5-10 kg of livestock and poultry manure or farmyard manure per sq m, then add fermented cake, bran, and grain husks, etc.

2. Introducing seed earthworms into the pit

Generally, place 0.25-0.5 kg of seed earthworms per sq m. After the seed earthworms are placed, first cover the ditch with a layer of plastic mosquito net, then cover with plastic film and foam boards and other rainproof materials. This not only prevents natural enemies but also prevents rain and maintains moisture.

3. Feeding

The feed is 100% cow manure, or 50% cow manure, 35% pig manure, and 150% straw, or 50% pig manure and 50% straw or weeds. Feed 2-3 times per month, with each layer 10 cm thick. The feed should be fresh and airy.

4. Daily management

The temperature needs to be maintained at 20-27°C, and the relative air humidity needs to be maintained at 70%-80%.

II. Cost of Farming Earthworms on 1 Mu

1. Feed (cow manure, pig manure, straw, etc.) is 100 cubic m, at 20 yuan per cubic m, totaling 2000 yuan.

2. Self-bred seed earthworms 100 kg, at a cost of 20 yuan/kg, totaling 22000 yuan.

3. Land cost for 1 mu, at 600 yuan per mu, totaling 600 yuan.

4. Water, electricity, and tool costs total 500 yuan.

5. Total cost 5100 yuan.

III. Income from Farming Earthworms on 1 Mu

1. Earthworms

Generally, the annual yield per mu is 2-3 tons of fresh earthworms, with highs reaching 5 tons. Calculating at the lower figure of 2 tons, the current market price is more than 10000 yuan per ton (when sold as fishing bait, it can reach more than 30000 yuan per ton). Calculated at the lower price of 10000 yuan per ton, the income can still be 20000 yuan.

2. Worm castings

Worm castings 40 tons, at 150 yuan per ton, totaling 6000 yuan.

3. Total

Total income 26000 yuan.

IV. Net Profit from Farming Earthworms on 1 Mu

26000 yuan - 5100 yuan = 20900 yuan. If workers are hired for large-scale farming, wages for the workers must also be paid. Generally, 1 laborer can manage earthworm farming on 2 mu of land. Calculated at a monthly wage of 1000 yuan, about 6000 yuan in wages needs to be paid per mu, and the actual profit available is about 15000 yuan.