The purpose of completing the construction of rice fishery projects is to create conditions for the cultivation of green shrimps. To this end, we must proceed from reality, with high standards and a high starting point. The rice and shrimp farming project in rice fields mainly consists of the following four parts:

(1) Breeding ditch

The breeding ditch is the main body of the rice and fishery project construction. Usually the ditch is 4 to 6 meters wide and 1 to 1.5 meters deep. It is in a ring shape and can be excavated along the inside of the rice field ridge. The slope ratio on the side adjacent to the ridge can be larger, usually 1:2.5 to 1:3, and then in the rice field Several field ditches are dug, with a width of 0.8 to 1 meter and a depth of 0.5 to 0.8 meters, mainly for green shrimps to enter the rice fields to feed. At present, many places adopt the construction technology of raising water from rice fields to raise shrimps. That is, the rice fields are raised and reinforced, and 1 to 2 shrimp collecting ditches are opened in the middle of the fields. The purpose of the shrimp collecting ditch is to release water to catch shrimps. (2) Drainage and irrigation channels

Usually adopt a pattern of high irrigation and low drainage. The water inlet canal is built on the ridge of the rice field, and the drainage channel is built at the lowest part of the rice field, with irrigation and drainage separated. The inlet and outlet must be sealed with multi-layer screens, and the inlet water must be strictly filtered to ensure that it can be filled in and drained out. (3) Construction of field ridges

Use the soil excavated from shrimp farming ditches to heighten and widen the ridges. The ridge height is about 1.5 meters and the ridge surface is 1 meter wide. At the same time, the field surface should be leveled to create conditions for high-quality and high-yielding rice. (4) Construction of roads, bridges and culverts

To develop large-scale shrimp farming in rice fields, we must proceed from the needs of mechanized operation and improve road construction. At the same time, we must also improve the supporting construction of drainage and irrigation stations and culverts to improve resistance to natural disasters. ability.