CN205884381U - Field structure of mountain area paddy field fish culture water level regulation and control - Google Patents

Abstract

The utility model discloses a field structure for regulating and controlling the water level of rice paddy and fish farming in mountainous areas. The deep water area of the paddy field is excavated in between, and drainage ditch is set outside the outer ridge, and the water level control pipeline connected with the drainage ditch or the adjacent low-level paddy field is installed in the deep water area of the paddy field. Water inlet and outlet. According to the characteristics of the paddy fields in mountainous areas, the utility model adds a circle of inner ridges inside the outer ridges of the paddy fields, a rice planting area is set inside the inner ridges, and a deep water area for rice fields is excavated between the outer ridges and the inner ridges. Rice is planted in the rice planting area, and fish are raised in the deep water area of the rice field at the same time, and the fish can move in the rice planting area and the deep water area of the rice field to achieve the symbiosis of rice and fish.

Description

A field structure for water level regulation of paddy field and fish culture in mountainous area

technical field

The utility model relates to a field structure for regulating and controlling the water level of fish farming in paddy fields in mountainous areas, and belongs to the technical field of ecological aquaculture.

Background technique

Fish farming in rice fields has a long history in my country and is one of the main methods of freshwater fish farming in my country. Fish farming in paddy field is to use the shallow water environment of paddy field to grow fish, shrimp and other aquatic products at the same time of planting rice. It has low investment, quick effect, no pollution and good benefit, and has broad development prospects. Paddy and fish farming is mainly rice planting, supplemented by aquatic products. The guiding ideology is to raise fish and fish in rice fields, increase rice production and fish harvest, make full use of rice fields, and fish and rice together, not only can reap the benefits of fishing, but also make rice Increasing production is a typical green, pollution-free and low-carbon agriculture. Using the newly-created rice-fish symbiosis relationship, the original rice field ecology will be transformed into a more favorable direction, and the quality of rice will be improved without pesticides and no or less chemical fertilizers. At the same time, aquatic products such as fish and shrimp can also bring Economic value has become one of the important ways for people to get rich, so it has received strong attention from people in recent years.

Under the environmental conditions in the mountainous areas of Guizhou, the area of the paddy field is small, and the height of the paddy field is different. It is impossible to integrate or level the paddy field. There are problems such as difficult control of paddy field water level, inconvenient drainage, time-consuming and labor-intensive problems, which eventually lead to an increase in labor force. The difficulty of operation increases and the cost of breeding increases. These problems seriously restrict the development of this industry. Therefore, in the process of rice field cultivation in mountainous areas, it is urgent to solve this problem. Therefore, it is necessary to find a water level control and drainage method for rice field fish farming in mountainous areas, so as to reduce the breeding cost and simplify the breeding process.

Utility model content

The purpose of this utility model is to solve the above-mentioned problems in the symbiotic culture of rice and fish in mountainous areas, and provide a field structure for regulating the water level of rice field and fish farming in mountainous areas, thereby improving the operability of water level control in rice fields and fish farming, and improving the efficiency of rice and fish farming in different planes in mountainous areas. Integrality improves the simplicity and thoroughness of drainage, and is convenient for fish harvesting and replacement of new water, so as to overcome the deficiencies of the prior art.

The technical solution of the present utility model: a water level control method for fish farming in rice fields in mountainous areas, comprising the following steps:

(1) Construction of rice planting area: build a rice planting area 2-3m away from the edge of the paddy field, and build inner ridges around the isolated rice planting area. The inner ridge is 10-20cm high and 5-10cm wide. The inner ridge is composed of soft paddy soil, and the height is 30-40cm lower than the edge of the paddy field;

(2) Construction of the deep water area outside the rice planting area: construct the deep water area of the rice field between the outside of the above rice planting area and the ridge at the edge of the paddy field. forming a slope;

(3) Drainage ditch construction: build a drainage ditch on the periphery of the paddy field ridge, the drainage ditch is lower than the bottom of the deep water area of the paddy field, and its width is 20-30 cm, and its height is 10-20 cm for drainage;

(4) Installation of water level control pipelines for paddy fields on different planes in mountainous areas: Install water level control pipelines in deep water areas of paddy fields. The low-lying part of the area is used to control the water level of the paddy field, and the other end leads to the drainage ditch or other low-level paddy fields. The paddy fields of different planes can be connected in series through the water level control pipeline to form micro-flow water for cultivation. The standing end of the water level control pipeline can be passed through the sleeve The tube is raised or lowered autonomously.

(5) Daily management: According to the conditions of rice growth, fish size, temperature change, and fertilizer and water disinfection, the water level is reasonably adjusted through the water level control pipeline, that is, in the initial stage of rice growth, the water level in the rice planting area is maintained at 3 to 5 cm. Let the rice turn green as soon as possible; in the middle and late stages of rice growth, the water level is kept at 12-15cm, so that fish can move in the rice planting area and the deep water area of the rice field, so as to achieve the purpose of rice-fish symbiosis.

In the above method, an anti-escape net is arranged on the ridge at the edge of the paddy field.

In the above method, the water level regulating pipeline is a right-angled elbow made of polyethylene pipe, and a slidable sleeve is provided at its standing end to adjust the horizontal height of the water level regulating pipeline, so as to achieve water level regulation. the goal of.

At the same time, the utility model also provides a field structure for realizing the above method, which includes an outer ridge, an inner ridge is arranged on the inner side of the outer ridge, and a rice planting area is arranged inside the inner ridge. The deep water area of the paddy field is excavated, and a drainage ditch is set outside the outer ridge. In the deep water area of the paddy field, water level control pipes connected with the drainage ditch or the adjacent low-level paddy field are installed. Water inlet and outlet.

In the above field structure, the outer ridge is 10-20 cm higher than the inner ridge.

In the above field structure, more than one fish inlet channel is provided around the inner ridge, and the bottom of the fish inlet channel is flush with the bottom of the rice planting area.

In the above field structure, the standing end of the water level control pipeline is provided with a slidable casing, and the casing is fixedly installed in the deep water area of the paddy field through a support frame, and locking screws are arranged on the outer wall of the casing.

Compared with the prior art, the utility model has the advantages that: according to the characteristics of the paddy fields in mountainous areas, the utility model adds a circle of inner ridges on the inner side of the outer ridges of the rice fields, and a rice planting area is arranged inside the inner ridges. The deep water area of the rice field is excavated between the inner field ridges, so that rice can be planted in the rice planting area, and fish can be raised in the deep water area of the rice field at the same time, and the fish can move in the rice planting area and the deep water area of the rice field to achieve the symbiosis of rice and fish breeding purpose. At the same time, the utility model adjusts the water level in the paddy field through the water level control pipeline, and can connect paddy fields of different planes in series to form micro-flowing water for cultivation, so as to meet the symbiotic cultivation of rice and fish in different paddy growth periods. Therefore, the paddy field of the present utility model The fish symbiosis breeding method is simple to operate and easy to implement. Excavation in the deep water area of the paddy field and rice harvesting can be completed by machinery, which is conducive to large-scale promotion and can save a lot of cost for mountainous areas. At the same time, the utility model makes full use of the energy flow relationship in the rice-fish symbiotic culture, that is, the fish use the weeds and pests in the field as food, and the feces produced by the fish can be used as fertilizer for the rice, saving the cost of fertilizers, pesticides, and weeding.

Description of drawings

Fig. 1 is the structural representation of utility model;

Fig. 2 is a sectional view along A-A of Fig. 1 .

Explanation of reference signs: 1-edge ridge of paddy field, 2-inner ridge of paddy field, 3-deep water area of paddy field, 4-drainage ditch, 5-water level control pipeline, 6-water inlet, 7-water outlet, 8-fish inlet channel, 9 - rice planting area, 10 - casing, 11 - support frame, 12 - locking screw.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the embodiments.

Embodiment of the present utility model: referring to Fig. 1, the field structure of the water level regulation and control of the paddy field of the present utility model, comprises outer field ridge 1, is provided with a circle inner field ridge 2 in the inner side of outer field ridge 1, and described outer field ridge 1 is larger than inner field ridge 2 is 10cm high; a rice planting area 9 is set within the inner ridge 2, and a paddy field deep water area 3 is excavated between the outer ridge 1 and the inner ridge 2, so that fish and water flow enter the rice planting area 9 from the paddy field deep water area 3 , the fish inlet channel 8 can be set on the periphery of the inner field ridge 2, and the bottom of the fish inlet channel 8 is flush with the bottom of the rice planting area 9; A water level control pipeline 5 connected to the drainage ditch 4 or an adjacent low-level paddy field is installed. The standing end of the water level control pipeline 5 is provided with a slidable casing 10, and the casing 10 is fixedly installed in the deep water of the paddy field through a support frame 11. In zone 3, a locking screw 12 is provided on the outer wall of the sleeve 10 , and after the height of the water level control pipeline 5 is adjusted, it is fixed on the sleeve 10 through the locking screw 12 on the outer wall of the sleeve 10 . Finally, a water inlet 6 and a water outlet 7 are respectively provided at opposite corners of the paddy field deep water area 3 for introduction and discharge of water flow in the paddy field.

When the utility model is specifically implemented, the following steps can be adopted to carry out:

(1) The construction of the paddy planting area: build the paddy planting area 9 at 2m away from the edge of the paddy field ridge 1, build the inner ridge 2 around the isolated paddy planting area 9, and the inner ridge 2 is 10cm high and 5cm wide. The inner ridge 2 of 9 is made of soft paddy field soil, which is 40cm lower than the edge ridge 1 of the paddy field;

(2) Construction of the deep water area outside the rice planting area: build the deep water area 3 of the paddy field between the outside of the above rice planting area 9 and the ridge 1 at the edge of the paddy field. The angle extends upwards to form a slope, and an escape net is arranged on the ridge 1 at the edge of the paddy field to prevent the cultured fish or shrimp from running out;

(3) drainage ditch construction: build drainage ditch 4 on the periphery of paddy field edge ridge 1, drainage ditch 4 is lower than the bottom of paddy field deep water area 3, and its width 20～30cm, high 10～20cm, is used for drainage;

(4) Installation of water level control pipelines in paddy fields on different planes in mountainous areas: Install water level control pipelines 5 in the deep water area 3 of the paddy fields. In the low-lying place of the deep water area 3 of the paddy field, it is used to regulate the water level of the paddy field, and the other end leads to the drainage ditch 4 or other low-level paddy fields, and the paddy fields of different planes can be connected in series through the water level regulation pipeline 5 to form micro-flowing water for cultivation; The water level regulating pipe 5 is a right-angled elbow made of polyethylene pipe, and a slidable sleeve 10 is arranged at its standing end, so that the water level regulating pipe 5 can be raised or lowered independently, thereby achieving the purpose of water level regulation .

(5) Daily management: every day, according to conditions such as rice growth situation, fish size, temperature change and fertilizer water disinfection, the water level is reasonably regulated through the water level control pipeline 5, that is, in the initial stage of rice growth, the water level in the rice planting area 9 is maintained at 3 cm, Let the rice turn green as soon as possible; in the middle and late stages of rice growth, the water level is kept at 12cm, so that fish can move in the rice planting area 9 and the deep water area 3 of the rice field, so as to achieve the symbiosis of rice and fish.

Claims (4)

1. the Field structure of a kind of mountain area rice field fish culture water level management, including outer ridge (1) it is characterised in that: in outer ridge (1) Inner side be provided with ridge (2) in a circle, be provided with paddy fields (9) within interior ridge (2), outer ridge (1) with interior Excavating between ridge (2) has rice field profundal zone (3), the outside of outer ridge (1) is provided with gutter (4), in rice field profundal zone (3) the water level management pipeline (5) being connected with gutter (4) or adjacent low degree rice field is installed, in rice field profundal zone (3) in Diagonal angle be respectively arranged with water inlet (6) and delivery port (7).

2. Field structure according to claim 1 it is characterised in that: described outer ridge (1) is higher by 10 than interior ridge (2)～ 20cm.

3. Field structure according to claim 1 it is characterised in that: the periphery of described interior ridge (2) be provided with one with On enter fish passage (8), and it is concordant with the bottom of paddy fields (9) to enter the bottom of fish passage (8).

4. Field structure according to claim 1 it is characterised in that: the end that stands erect of described water level management pipeline (5) sets It is equipped with the sleeve pipe (10) that can slide, sleeve pipe (10) is fixedly mounted in rice field profundal zone (3) by bracing frame (11), in sleeve pipe (10) lock-screw (12) is provided with outer wall.