Breeding method in paddy field lobster farming crop rotation 2+1 modes

A breeding method and paddy field technology, which is applied in the field of lobster farming, can solve the problems of low rice harvest and low yield, and achieve the effect of good living environment, high benefit and high survival rate of lobster

Active Publication Date: 2019-04-02
湖南明穗生态农业发展有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings of the existing rice and shrimp rotation mode with

Method used

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Embodiment Construction

[0024] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them.

[0025] A cultivation method of a 2+1 mode of cultivating shrimps in paddy field rotation, comprising the following steps:

[0026] S1: Dig a circular ditch in the paddy field in the early spring, fertilize and plant Papilionaceae and Elodea, and cultivate water quality;

[0027] S2: The temperature gradually rises in March, and the weeds of Smilax and Elodea are removed. Crayfish seedlings are placed in the middle and late March. The stocking size is 100-150 / catties, and the stocking density is 4,000-6,000 crayfish / mu;

[0028] S3: The breeding time is 20-25 days, and the crayfish are caught in mid-April;

[0029] S4: After the crayfish are caught, the paddy field is disinfected, bottomed and detoxified, and then the field is sun-dried, ...

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Abstract

The invention discloses a breeding method in paddy field lobster farming crop rotation 2+1 modes. The breeding method includes steps of S1, digging annular ditches in paddy fields in early spring, applying fertilizers, planting potamogeton crispus and elodea nuttallii and improving the water quality; S2, removing weeds for the potamogeton crispus and the elodea nuttallii when the temperature is gradually increased in March, and placing lobster seeds in the paddy fields in the middle ten days and the last ten days of March under the conditions of the stocking sizes of 200-300 lobster seeds/kilogram and the stocking density of 4000-6000 lobsters/mu; S3, breeding the lobster seeds for the breeding time of 20-25 days and capturing lobsters in the middle ten days of April; S4, carrying out disinfection, bottom modification and detoxification on the paddy fields after the lobsters are completely captured. The breeding method has the advantages that the large-scale lobster yield can reach 150-200 kilograms/mu, is double the traditional 1+1 paddy and lobster crop rotation yield and is higher than the yield of paddy and lobster symbiotic modes; first batches of lobsters appear on the marketin April and can be sold at a high price of 40-60 yuan/kilogram, and the lobsters are bred at the low density, are high in survival rate and have high benefits.

Description

technical field [0001] The invention relates to the technical field of lobster cultivation, in particular to a cultivation method in a 2+1 mode of paddy field cultivation and rotation of shrimp. Background technique [0002] Shrimp farming in paddy fields generally adopts the two main modes of shrimp-rice rotation and rice-shrimp symbiosis. The general rice-shrimp rotation mode is 1+1 mode, that is, raising a crop of crayfish and planting a season of rice. This mode is easy to operate and easy to be used. Farmers accept it, but the output of crayfish is not high, the general level is within 400kg / mu, so the benefit is not high. [0003] Moreover, the water quality of the cultured lobster is yellow-green and light green are the best, and brown and dark brown are medium. Contents of the invention [0004] The purpose of the present invention is to solve the shortcomings of low yield and low rice yield in the existing rice-shrimp rotation mode, and propose a cultivation meth...

Claims

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Application Information

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IPC IPC(8): A01K61/59A01G22/22
CPCA01G22/22A01K61/59Y02A40/81
Inventor 张志明
Owner 湖南明穗生态农业发展有限公司
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