Analysis on the rapid reproduction of earthworms in the courtyard

Earthworm is a kind of high-quality animal protein supplementary feed, the fresh body contains 12% Mel 20% protein, the dry body contains 50% Mel 70% protein, and the effective amino acid content reaches 58% Mel 62%. The breeding of earthworms in the courtyard is rich in resources, suitable environment and convenient management.

1. The living habits of earthworms Earthworms like humidity, temperature, stillness, light and salt. When the suitable temperature is 15 Mel 25 degrees and the humidity changes to 60% Mel 70%, the PH value is 6.5 Mel 7.5. Earthworms are omnivorous animals, like to eat sweet, sour, salty food, it hates bitter things. Earthworms are hermaphroditic and heterogamous, and generally mature at the age of 4-6 months. they can lay eggs 4 times a year and live for 3 years.

2. there are many methods to collect earthworms, which can be excavated manually, caught when the earthworms come out of the cave before dawn, and can also be captured by spraying and stacking materials. The medicine captured by spray is 1.5% potassium permanganate solution or 0.55% formalin solution, and its dosage is 14 liters per square meter.

3. The soil pit culture method uses the field edge corner culture in front of the house and behind the house. Dig a culture pit of 100m in length and 130cm in width and 33m in depth. Plastic sheeting was laid around the pit. Feed, fertile soil, etc., can be put into layers, mixed or fed at a fixed point in block feed. The stocking density of earthworms is 500 / m ~ 2 and 750 pieces / m ~ 2, and it should be put into multiple sites.

4. Soil ditch farming method in the vicinity of pig farms, chicken farms or fish ponds, dig a ditch with a width of 50 cm and a depth of 22 cm. The bottom of the ditch is covered with a layer of 10 cm thick soil and pond mud, and a layer of poultry, animal manure or grain husks, sawdust, sawdust, garbage and other brewed heat are added on top, and then a layer of fertile soil is added, and then all kinds of organic matter and food are put in layers. Each square meter into about 500 earthworms, stocking should be put in stages, dense and appropriate, keep a distance.

5. The raw materials for composting such as weeds, fine soil, straw, garbage and human and animal manure were collected and composted in a flat and wet place by breeding. After the compost was fermented and ripened, an average of 300 and 500 earthworms were put into the compost per square meter.

6. The wooden box culture method uses wooden boards 1 cm thick to make wooden cases 50-60 cm long, 30 mi 40 cm wide and 25 mi 35 cm high. The upper and lower layers of the box were covered with thinner fertile soil, and the stocking density of various feeds rich in organic matter should be 500 and 800 earthworms per cubic meter of soil. Clean up the feces once every 60 days and avoid the spawning incubation period.

7. Earthworms are harvested in soil pits and cement pits. Earthworms are generally harvested circularly in a certain order and at certain intervals; earthworms are raised by soil ditches and mixed compost, and the soil ditches and fertilizer piles should be divided into several parts according to the needs of earthworms before harvesting. The soil ditches and fertilizer piles are generally divided into several parts and harvested as needed; those raised in wooden boxes and bamboo baskets are generally harvested in turn in a box and basket.