Green and efficient comprehensive shrimp-rice breeding method

An efficient and green technology, applied in fish farming, rice cultivation, climate change adaptation, etc., can solve the problems of high mortality, unsustainable crop rotation, low output efficiency, etc., and reduce the application of chemical fertilizers. , Reduce the cost of breeding and planting, benefit and stable effect

CN109601292AInactive Publication Date: 2019-04-12HUAZHONG AGRI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-04-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a green and efficient comprehensive shrimp-rice breeding method which comprises the following steps: (1) carrying out field engineering transformation and optimization; (2) carrying out rice field weeding and sterilization; (3) planting and maintaining aquatic plants; (4) carrying out early-stage natural feed biological culture; (5) launching shrimp fries and seed shrimps,harvesting commercial shrimps, and carrying out breeding circulation; (6) carrying out feeding and management; (7) carrying out water quality management and disease and insect prevention and control;(8) carrying out comprehensive planting and breeding management, and the like. By adopting the method, a first batch of shrimp fries are harvested in March to April, a first batch of commercial shrimps can be harvested in April to June, a second batch of commercial shrimps can be harvested in August to September, a batch of high-quality rice can be harvested at the middle and last ten days of October, the limit that sufficient mutualism of shrimps and rice cannot be achieved by using a conventional breeding mode can be avoided, meanwhile, ecological resources can be utilized, propagation and breeding of large-scale cray fries ahead of time can be promoted, the problems that a conventional shrimp-rice co-existence or continuous breeding is low in yield benefit and high in death rate can beavoided, a rice field ecological system is sufficiently utilized for comprehensive breeding and green production, and the benefits and the quality of cray and rice can be improved.
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Description

technical field

[0001] The invention relates to the technical field of aquaculture, in particular to a method for green and high-efficiency comprehensive cultivation of shrimp and rice. Background technique

[0002] Crayfish, scientifically known as Procambarus clarkii (Procambarus clarkii), originated in North America and was introduced to my country in the 1930s. The natural population of crayfish has strong reproductive ability, can live in various waters, has a wide range of food habits, and is suitable for breeding. At the same time, crayfish are popular in domestic and foreign markets because of their delicate meat, unique flavor and rich nutrition.

[0003] Around 2000 in my country, Hubei Province took the lead in artificial breeding, and then spread to the surrounding areas. Now, in addition to Hubei, Jiangsu, Anhui, Jiangxi, Hunan and other main provinces, Sichuan, Chongqing, Yunnan, Henan, Shandong, Zhejiang, Guangxi and other provinces ( Crayfish farming in dist...

Examples

Embodiment 1

[0057] 1. Selection of paddy fields:

[0058] Choose a paddy field with good water quality, sufficient water source, convenient drainage and irrigation, good water retention capacity and no pollution around. The area of ​​the paddy field is 30 mu;

[0059] 2. Transformation of paddy fields:

[0060] Such as figure 1 As shown, in the rice field 1, an annular ditch 2 is excavated along the inner side of the rice field ridge. The cross section of the annular ditch 2 is trapezoidal. The width of the top of the annular ditch is 7.0 meters, the width of the bottom is 4.0 meters, and the depth is 1.5 meters. Build the ditch inner ridge 3 and the ditch outer ridge 4 respectively, the ditch inner ridge 3 is higher than the field surface 30cm, the ditch outer ridge 4 is higher than the field surface 1.2 meters, and on the opposite sides of the ditch outer ridge 4, the 30cm diameter is embedded respectively. Water pipe 5 and drain pipe 6, 20 purpose filter screens are set respectively ...

Embodiment 2

[0093] 1. Selection of paddy fields:

[0094] Choose a paddy field with good water quality, sufficient water source, convenient drainage and irrigation, good water retention capacity and no pollution around. The area of ​​the paddy field is 50 mu;

[0095] 2. Transformation of paddy fields:

[0096] In the paddy field, an annular ditch is excavated along the inner side of the paddy field ridge. The cross section of the annular ditch is trapezoidal. The width of the top of the annular ditch is 6.0 meters, the width of the bottom is 3.5 meters, and the depth is 1.4 meters. and the ridge outside the ditch, the height of the ridge inside the ditch is 35cm higher than the field surface, and the height of the ridge outside the ditch is 1.5m higher than the field surface. On the two opposite sides of the ridge outside the ditch, water inlet pipes and drain pipes with a diameter of 30cm are pre-buried respectively. Set up 20-mesh filter screens at the outlets of the drainage pipes to...