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Method for breeding adult crabs in northern rice field

A technology for growing crabs in paddy fields, which is applied in the field of breeding crabs in northern paddy fields, can solve the problems of backward farming models, better economic benefits, and inability to raise crab seedlings in the fields, and achieve the best economic benefits and improve economic benefits.

Inactive Publication Date: 2020-04-10
JILIN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the method of raising crabs in paddy fields is mostly applicable to the south. The rice in the south is mostly two-season or multi-season rice, while the rice in the north is one-season rice. The method of raising crabs in rice fields in the south is not suitable for the north. The stocking density of young crabs) is relatively wide, which cannot guide farmers to obtain better economic benefits. In addition, the large supply of crab seedlings in the northern market is between April and May, because at this time the rice fields have not yet completed the planting of rice seedlings. The returned crab seedlings cannot be reared in the field. The technology of temporary cultivation in the field was not mentioned in the previously disclosed technology, and the breeding mode is relatively backward

Method used

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  • Method for breeding adult crabs in northern rice field
  • Method for breeding adult crabs in northern rice field

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Experimental program
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Effect test

Embodiment 1

[0031] A method for growing crabs in northern paddy fields, comprising the following steps:

[0032] S1. Paddy field selection: select 2 to 10 mu of paddy fields close to good water quality sources in flat terrain;

[0033] S2. Excavation of rice ridge and crab ditch: excavate two main ditches on both sides of the paddy field, the ditch width is 50-100cm, and the depth is 70-80cm. Outlet;

[0034] S3, paddy field fertilization: apply manure 60kg per 1 mu of field one week before stocking 6.17±1.09g / only crabs;

[0035] S4. Set up anti-escape: form an anti-escape wall at 0.3-0.5m outside the paddy fields;

[0036] S5, select the rice variety and plant rice on the ridge, plant 1 row of rice per ridge, and do not plant every 12 rows of empty rows, which is box-type transplanting;

[0037] S6. Temporary breeding in the field: after the ice thaws in early April, sterilize the pool water with 90kg of quicklime for each pool, and put crabs in one week later. The stocking density i...

Embodiment 2

[0044] A method for growing crabs in northern paddy fields, comprising the following steps:

[0045] S1. Paddy field selection: select 2 to 10 mu of paddy fields close to good water quality sources in flat terrain;

[0046] S2. Excavation of rice ridge and crab ditch: excavate two main ditches on both sides of the paddy field, the ditch width is 50-100cm, and the depth is 70-80cm. Outlet;

[0047] S3, paddy field fertilization: apply manure 60kg per 1 mu of field one week before stocking 6.17±1.09g / only crabs;

[0048] S4. Set up anti-escape: form an anti-escape wall at 0.3-0.5m outside the paddy fields;

[0049] S5, select the rice variety and plant rice on the ridge, plant 1 row of rice per ridge, and do not plant every 12 rows of empty rows, which is box-type transplanting;

[0050] S6. Temporary breeding in the field: after the ice thaws in early April, sterilize the pool water with 90kg of quicklime for each pool, and put crabs in one week later. The stocking density i...

Embodiment 3

[0060] A method for growing crabs in northern paddy fields, comprising the following steps:

[0061] S1. Paddy field selection: select 2 to 10 mu of paddy fields close to good water quality sources in flat terrain;

[0062] S2. Excavation of rice ridge and crab ditch: excavate two main ditches on both sides of the paddy field, the ditch width is 50-100cm, and the depth is 70-80cm. Outlet;

[0063] S3, paddy field fertilization: apply manure 60kg per 1 mu of field one week before stocking 6.17±1.09g / only crabs;

[0064] S4. Set up anti-escape: form an anti-escape wall at 0.3-0.5m outside the paddy fields;

[0065] S5, select the rice variety and plant rice on the ridge, plant 1 row of rice per ridge, and do not plant every 12 rows of empty rows, which is box-type transplanting;

[0066] S6. Temporary breeding in the field: after the ice thaws in early April, sterilize the pool water with 90kg of quicklime for each pool, and put crabs in one week later. The stocking density i...

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Abstract

The invention relates to the technical field of crab breeding in rice fields, in particular to a method for breeding adult crabs in a northern rice field. The method comprises the following steps: S1,rice field selection; S2, excavation of rice ridge crab ditches; S3, rice field fertilization; S4, escape prevention setting; S5, rice variety selection and planting; S6, field enclosure temporary breeding; S7, juvenile crab disinfection and stocking; S8, daily management and feeding; S9, crab trapping; and S10, rice harvesting. The method for breeding the crabs in the rice field is suitable forthe north, a breeding mode of box-type rice transplanting, double-side ditches and small adult crab stocking density is adopted, the bred crabs and one-season rice in the north coexist, the economic benefit is improved, the optimal density of the crabs during field enclosure temporary breeding and the range of the optimal stocking density during rice field breeding are obtained through systematiccalculation of the economic benefit, the optimal economic benefit can be obtained, juvenile crabs are temporarily bred before rice planting, and the problem that the juvenile crabs cannot enter the field is solved.

Description

technical field [0001] The invention relates to the technical field of crab cultivation in paddy fields, in particular to a method for cultivating adult crabs in northern paddy fields. Background technique [0002] Raising crabs in rice fields is a systematic project with comprehensive benefits in current agricultural production. It plays an important role in stabilizing grain supply, increasing production and income, guiding farmers to become rich, and revitalizing the rural economy. It is beneficial to the growth of rice, does not reduce the yield of rice, and improves the quality and efficiency. The rice field provides a good habitat for river crabs, promotes the growth of river crabs, and the symbiosis of rice and crabs significantly improves economic benefits. [0003] At present, the method of raising crabs in paddy fields is mostly applicable to the south. The rice in the south is mostly two-season or multi-season rice, while the rice in the north is one-season rice. ...

Claims

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Application Information

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IPC IPC(8): A01G22/22A01K61/59
CPCA01K61/59A01G22/22Y02A40/81
Inventor 王秋举刘洪健吴旻张东鸣陈玉珂蔺丽丽郭志欣赵云龙
Owner JILIN AGRICULTURAL UNIV
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