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Rice field crop rotation ecological mode for rice-shrimp intergrowth and mandarin fish co-cultivation

A paddy field and mandarin fish technology, which is applied in the field of paddy field planting and rotation ecological model, can solve the problems of fragile paddy ecosystem and destruction of biological balance, and achieve the effects of promoting rice root development, reducing the use of chemical fertilizers, and improving soil permeability

Inactive Publication Date: 2019-03-19
FISHERIES RES INST ANHUI ACAD OF AGRI SCI
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Problems solved by technology

In addition, the long-term application of herbicides and insecticides also destroys the biological balance, which can easily lead to the fragility of the rice field ecosystem.

Method used

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  • Rice field crop rotation ecological mode for rice-shrimp intergrowth and mandarin fish co-cultivation
  • Rice field crop rotation ecological mode for rice-shrimp intergrowth and mandarin fish co-cultivation
  • Rice field crop rotation ecological mode for rice-shrimp intergrowth and mandarin fish co-cultivation

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Embodiment Construction

[0016] In order to make the implementation technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further elaborated.

[0017] A paddy field planting and breeding rotation ecological model in which rice and shrimp are symbiotic and mandarin fish are co-raised, including a paddy field for planting, and the paddy field includes a field piece 1 and a field piece 2 connected together, and rice and shrimp are symbiotic in the field piece 1, Among them, the shrimp is Procambarus clarkii, and the second field is filled with water to form a pond for breeding mandarin fish, bait fish and Procambarus clarkii. The system service functions of the two fields are interchanged in the next year; the reciprocating cycle of system service functions alternates, forming a " Symbiosis system of rice + shrimp, polyculture ecosystem of mandarin fish + bait fish + shrimp, and ecological model of rice field planting and crop rota...

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Abstract

The invention provides a rice field crop rotation ecological mode for rice-shrimp intergrowth and mandarin fish co-cultivation. The mode comprises a rice field for cultivation. The function of a ricefield ecological system is improved; in the cultivated rice field, due to the deposition of feed residual bait for cultivation and fish excrement, fertilizers are provided for the growth of rice in the following year; the rice absorbs N and P; the soil absorbs organic debris, SS and COD; and metabolites provide carbon sources and energy for the growth and development of heterotrophic microorganisms such as bacteria, actinomycetes, moulds and the like, so that the content of organic matter and total nitrogen in the soil is improved, and meanwhile, the density of weeds in the field is reduced, the dominance of naked algae and cladocera is obviously increased, the population number of beneficial insects such as spiders, tarantulas, jumping spiders and the like is obviously increased, the useof pesticides is reduced, and the occurrence of diseases is reduced.

Description

technical field [0001] The invention relates to the technical field of paddy field planting and cultivation rotation, in particular to an ecological model of paddy field cultivation and rotation cropping in which rice and shrimp are symbiotic and mandarin fish are co-cultivated. Background technique [0002] The rice field ecosystem covers water, soil and farmland ecosystems, and is an artificial ecosystem created by human beings in the process of long-term agricultural production activities. The main characteristics of the system are: cultivated rice is the dominant population, the fields are submerged under a moderate depth of water curtain for a long time (120-320d), and there are complex dry-wet alternations in material accumulation and soil physical and chemical changes. It is extremely inclusive and open, and has great room for change, utilization and excavation in structure and service functions. [0003] However, the paddy field ecosystem is gradually degrading, mai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59A01G22/22A01K61/10
CPCA01G22/22A01K61/10A01K61/59Y02A40/81
Inventor 崔凯李静卢文轩魏哲能刘卫芳程文平何吉祥李正荣梁阳阳方婷赵秀侠严香兰方玉珍裴进周则牛
Owner FISHERIES RES INST ANHUI ACAD OF AGRI SCI
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