Micro-flowing-water ecological breeding method for rare fishes in rice field
A technology of ecological breeding and micro-flow water, applied in the fields of botanical equipment and methods, biocides, fish farming, etc., to achieve the effects of fresh water quality, product quality improvement, and pollution reduction
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Embodiment 1
[0019] Such as figure 1 Described: the rare fish rice paddy field micro-flow water ecological culture method described in the present embodiment, comprises the following steps:
[0020] ①Paddy field selection: Select a contiguous paddy field with excellent water source, convenient drainage and irrigation, and deep cultivation layer. Because the selected fish species are precious, the water source of the selected paddy field is groundwater, river water or reservoir tail water. The pH value of the water quality is required to be 7, dissolved oxygen >6mg / L, total hardness calculated as calcium carbonate is 89.25mg / L, water temperature is 15°C, organic oxygen consumption <30mg / L, ammonia <0.1mmol / L, sulfide is not allowed;
[0021] ②Paddy field reconstruction: according to the terrain scale of the paddy field, build a 2-meter-wide ridge 1 around the paddy field. The ridge 1 is 1.2m higher than the paddy field. The breeding and management of the rice field, the water inlet 5 and t...
Embodiment 2
[0028] Such as figure 1 Described: the rare fish rice paddy field micro-flow water ecological culture method described in the present embodiment, comprises the following steps:
[0029] ①Paddy field selection: Select contiguous paddy fields with excellent water sources, convenient drainage and irrigation, and deep cultivation layers. Because the selected fish species are precious, the water source of the selected paddy fields is groundwater, river water or reservoir tail water. The pH value of the water quality is required to be 7.8, and the dissolved oxygen >6mg / L, total hardness calculated as calcium carbonate is 123.8mg / l, water temperature is 20°C, organic oxygen consumption <30mg / L, ammonia <0.1mmol / L, sulfide is not allowed;
[0030] ②Paddy field reconstruction: according to the terrain scale of the paddy field, build a 2.5-meter-wide ridge 1 around the paddy field. The ridge 1 is more than 1.2m higher than the paddy field. For feeding and management of fish, water inle...
Embodiment 3
[0037] Such as figure 1 Described: the rare fish rice paddy field micro-flow water ecological culture method described in the present embodiment, comprises the following steps:
[0038] ①Paddy field selection: Select contiguous paddy fields with excellent water sources, convenient drainage and irrigation, and deep cultivation layers. Because the selected fish species are precious, the water source of the selected paddy fields is groundwater, river water or reservoir tail water. The pH value of the water quality is required to be 8.5, and the dissolved oxygen >6mg / L, total hardness calculated as calcium carbonate is 142.8mg / l, water temperature is 15-25°C, organic oxygen consumption <30mg / L, ammonia <0.1mmol / L, sulfide is not allowed;
[0039] ②Paddy field reconstruction: According to the terrain scale of the paddy field, build a 3-meter-wide ridge 1 around the paddy field. The ridge 1 is 1.8m higher than the paddy field. The feeding and management of the rice field, the water...
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