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Cultivation method of pea crab seeds in paddy field

A cultivation method and paddy field technology, applied in chemical instruments and methods, botany equipment and methods, cultivation, etc., can solve the problems of low survival rate of crab seedlings and poor quality of juvenile crabs, etc., achieve good breeding promotion value, improve Oxygen content and cleanliness, effect of promoting movement foraging

Inactive Publication Date: 2019-10-22
澧县湘琼大闸蟹养殖专业合作社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for cultivating crab seedlings in paddy fields, so as to solve the problems of low survival rate and poor quality of juvenile crabs, and overcome the shortcomings of traditional methods for raising crab seedlings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Paddy field button crab seedling cultivation method mainly comprises the following steps:

[0022] (1) Breeding pool preparation: Use glass fiber reinforced plastics as the escape wall around the rice field and excavate a ring ditch. The width of the ring ditch is 2m, and the ditch depth is 0.8m. A water diversion ditch is opened every 6m in the middle of the paddy field, and the ditch width is 1.5m. The depth is 0.6m, equipped with water inlet and drainage facilities; 80kg of quicklime per mu is used for disinfection, and the pool is dried for 7 days after disinfection; the water quality is cultivated 15 days before the seedlings are released. 2 days; the depth of the second water intake is 0.4m, and compound fertilizer is applied in the field at noon on the same day, 20 catties per mu. After 4-5 days of applying compound fertilizer, the pond water turns yellow-green or tea-green, and then water peanuts are planted in the field, 6-8 meters a plant;

[0023] (2) Stocking ...

Embodiment 2

[0028] Paddy field button crab seedling cultivation method mainly comprises the following steps:

[0029] (1) Breeding pool preparation: Use glass fiber reinforced plastics as the escape wall around the paddy field and excavate the ring ditch. The width of the ring ditch is 2.5m, and the ditch depth is 1m. A water diversion ditch is opened every 8m in the middle of the paddy field, and the ditch width is 1.5m. The depth is 0.6m, equipped with drainage facilities; 100kg of quicklime per mu is used for disinfection, and the pool is dried for 15 days after disinfection; the water quality is cultivated 15 days before the seedlings are released, and the water depth is 0.5m for the first time, and it is dried after 1 day, and the pool is dried for 3 2 days; the depth of the second water intake is 0.4m, and compound fertilizer is applied in the field at noon on the same day, 20 catties per mu. After 4-5 days of applying compound fertilizer, the pond water turns yellow-green or tea-green...

Embodiment 3

[0035] Paddy field button crab seedling cultivation method mainly comprises the following steps:

[0036] (1) Breeding pond preparation: Use glass fiber reinforced plastic as an escape wall around the rice field and excavate a ring ditch. The width of the ring ditch is 2.25m, the ditch depth is 0.9m, and a diversion ditch is opened every 7m in the middle of the paddy field, and the ditch width is 1.5m. , with a depth of 0.6m, equipped with water inlet and drainage facilities; sterilize with 90kg of quicklime per acre, and dry the pool for 11 days after disinfection; cultivate the water quality 15 days before releasing the seedlings, enter the water at a depth of 0.5m for the first time, let it dry after 1 day, and dry the pool 3 days; the second water intake depth is 0.4m, and compound fertilizer is applied in the field at noon on the same day, 20 catties per mu. After 4-5 days of compound fertilizer application, the pool water turns yellow-green or tea-green, and then water pean...

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Abstract

Disclosed is a cultivation method of pea crab seeds in the paddy field. The cultivation method includes the steps of 1), preparation of a cultivation pond, namely digging an annular trench and a diversion trench, preparing inlet and drainage facilities, performing disinfecting with quicklime, cultivating water quality and planting water peanuts; 2), raising of the pea crab seeds, namely at the beginning of May, raising young crabs with large eyes in the pond at the ratio of 2kg / mu; 3), fodder feeding, namely after 10 days of raising the large-eye larvae in the paddy field, performing fodder feeding at a fixed position and time every day, wherein fodder of the large-eye larvae is mainly based on free feeding of aquatic plants; 4), control of water quality and sediment, namely applying photosynthetic bacteria and nitrifying bacteria to maintain dissolved oxygen content in water and changing water once every 5 days from May to March of the next year; 5), harvest of the pea crabs, namely performing fishing in December of the year and January to March of the following year. In the method that the pea crabs are cultivated under paddy field conditions, the yield of 150g per mu of the peacrabs can be realized, the pea crabs are strong in growth and good in the immunity and adaptability, and the yield of the pea crabs per unit water body can be effectively increased.

Description

technical field [0001] The invention belongs to the field of crab cultivation, and in particular relates to a method for cultivating crab seedlings in paddy fields. Background technique [0002] At present, the market demand for large-sized river crabs is increasing, and the breeding benefits are obviously better than small-sized river crabs. To breed large-scale river crabs, the cultivation of high-quality crabs is particularly important. The quality of crab cultivation is closely related to various factors such as the environmental conditions of the pond, seed source, stocking density, feeding management and crab disease prevention and treatment. Only when various factors are combined reasonably can high and stable production be achieved. [0003] Cultivating buckle crabs from megalopa has become the main source of river crab seedlings at present. All localities are actively exploring ways to improve the survival rate of cultivation, control the size, and control the pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59A01G22/00C02F3/34C02F3/02
CPCA01G22/00A01K61/59C02F3/02C02F3/34C02F2209/22Y02A40/81Y02W10/10
Inventor 鲁湘琼
Owner 澧县湘琼大闸蟹养殖专业合作社
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