What chemical fertilizers and pesticides can be used to breed snails in rice fields?

1. The extensive culture method in natural water can meet the growth needs of Oncomelania hupensis as long as the water fertility is maintained and appropriate organic fertilizers such as manure, chicken manure, cow dung, pig manure or rice straw are applied regularly. In the case of high-density intensive farming, artificial bait must be put in. Snails don't need much nutrition. Rice bran, wheat bran and soybean powder were simply mixed at the ratio of 60%, 25% and 15% to make the first-class feed for snails.

2. According to the feeding situation and climatic conditions of snails, snails have a strong appetite at a suitable temperature (that is, 20℃-28℃), and can be fed once every two days, and the feeding amount is 2%-3% of the body weight each time. When the water temperature is in the range of 15℃-20℃ and 28℃-30℃, feed it twice a week, and the dosage is about 1% each time. When the temperature is lower than 15℃ or higher than 30℃, it is less than or equal to zero.

3. Snails have strong adaptability, no need for pesticides and few diseases. As long as a lot of pesticides and fertilizers are avoided, many flat rivers, streams, potholes, paddy fields, ponds and other ordinary water bodies in rural areas can be stocked. Keep the sediment thickness 10cm- 15cm, and the area is not limited. If it is an open water body, a small amount of duckweed and water lily can be planted on the water surface, some vines and melons and vegetables can be planted around the pond for shade, and bamboo tails, branches or stones and grass can be arranged in the water for snails to live in seclusion.

Snail is a gastropod mollusk, which likes to live in water with warm winter and cool summer, soft bottom, rich bait and fresh water quality, especially in places with running water. Snails are omnivorous, mainly eating tender stems and leaves of aquatic plants, organic debris and so on. Snails like to move and eat at night, and the optimum temperature for growth is 20 ~ 27℃.