Requirements for culture of Oncomelania hupensis in rice field

There are many requirements for the cultivation of Oncomelania hupensis in rice fields, and if it is not mastered well, it will directly affect the culture efficiency of Oncomelania hupensis, so let's take a look at the requirements of cultivating Oncomelania hupensis in rice fields.

1) Rice field requirements for raising Oncomelania hupensis in rice fields: Rice fields used for raising snails are required not to dry up all the year round, and pesticides can not be used in electricity.

2) Paddy field arrangement for raising Oncomelania hupensis in paddy fields: the holes were left when the rice was transplanted, and the trenches were dug within 1 week after planting, with a width of 20cm and a depth of 13cm and 17cm. After releasing the snail in the rice field, set up a fence or polyethylene screen with smaller holes in the inlet and outlet of the paddy field, and the ridges around the field strictly prevent the leakage of rats and snakes, so as to prevent the snail from escaping.

3) timely stocking of Oncomelania hupensis in rice field: from tillering to long heading stage of rice, that is, from late June (15 days after rice planting) to early August, 2000 4000 young snails weighing 4 grams were released in 1 mu paddy field. If the natural bait is rich, it can be put more appropriately, otherwise, it can be put less appropriately. If duckweed is raised in rice field, the stocking density can be increased to 8000000.

4) proper feeding of Oncomelania hupensis in rice field: the amount of natural feed in general rice field decreased about 25 days after snail culture. For fields with obvious insufficient feed, land grass, vegetable leaves, melon peel and so on can be put into the ditch to meet the snail food.

5) timely harvest of Oncomelania hupensis in rice field: it can be harvested in 50 days after stocking. Before fishing, drain the surface water of the field, lead the snail in the trench or trap it with bait, the catch is large and small, it can be put in once and caught many times.

6) Scientific fertilization for raising Oncomelania hupensis in rice field, reasonable prevention and control of diseases and pests: Rice fertilizer in snail field should be applied once before planting, supplemented with topdressing appropriately. Low-toxic and high-efficiency pesticides such as chlordimeform, Shachongshuang and Jinggangmycin are selected for disease control and pest control in paddy fields.